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AmalRajUmapathySelvamAmalRajUmapathySelvam
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Merge pull request #1 from ShobikaPalani/master
how to drag and drop rows between datagrid and treegrid in wpf
2 parents 923b0f0 + fabb2d9 commit 8fee488

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‎App.config‎

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<startup>
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<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6" />
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</startup>
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</configuration>

‎App.xaml‎

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<Application x:Class="DragDropBetweenDataGridTreeGrid.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:DragDropBetweenDataGridTreeGrid"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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</Application.Resources>
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</Application>

‎App.xaml.cs‎

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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Data;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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namespace DragDropBetweenDataGridTreeGrid
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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}
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}

‎DragDropBehavior.cs‎

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using Syncfusion.Data.Extensions;
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using Syncfusion.UI.Xaml.Grid;
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using Syncfusion.UI.Xaml.TreeGrid;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Interactivity;
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namespace DragDropBetweenDataGridTreeGrid
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{
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public class DragDropBehavior:Behavior<MainWindow>
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{
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protected override void OnAttached()
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{
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base.OnAttached();
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AssociatedObject.sfDataGrid.RowDragDropController.Drop += sfDataGrid_Drop;
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AssociatedObject.sfTreeGrid.RowDragDropController.Drop += sfTreeGrid_Drop;
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}
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/// <summary>
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/// Customized TreeGrid Drop event.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void sfTreeGrid_Drop(object sender, TreeGridRowDropEventArgs e)
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{
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if (e.IsFromOutSideSource)
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{
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var draggingRecord = e.Data.GetData("Records") as ObservableCollection<object>;
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var record = draggingRecord[0] as EmployeeInfo;
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var dropPosition = e.DropPosition.ToString();
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var newItem = new EmployeeInfo();
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var rowIndex =AssociatedObject.sfTreeGrid.ResolveToRowIndex(e.TargetNode.Item);
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if (dropPosition != "None" && rowIndex != -1)
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{
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if (AssociatedObject.sfTreeGrid.View is TreeGridSelfRelationalView)
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{
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var treeNode = e.TargetNode;
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if (treeNode == null)
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return;
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var data = treeNode.Item;
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AssociatedObject.sfTreeGrid.SelectionController.SuspendUpdates();
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var dropIndex = -1;
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TreeNode parentNode = null;
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if (dropPosition == "DropBelow" || dropPosition == "DropAbove")
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{
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parentNode = treeNode.ParentNode;
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if (parentNode == null)
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{
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var treeNodeItem = treeNode.Item as EmployeeInfo;
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newItem = new EmployeeInfo() { FirstName = record.FirstName, LastName = record.LastName, ID = record.ID, Salary = record.Salary, Title = record.Title, ReportsTo = treeNodeItem.ReportsTo };
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}
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else
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{
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var parentNodeItems = parentNode.Item as EmployeeInfo;
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newItem = new EmployeeInfo() { FirstName = record.FirstName, LastName = record.LastName, ID = record.ID, Salary = record.Salary, Title = record.Title, ReportsTo = parentNodeItems.ID };
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}
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}
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else if (dropPosition == "DropAsChild")
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{
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if (!treeNode.IsExpanded)
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AssociatedObject.sfTreeGrid.ExpandNode(treeNode);
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parentNode = treeNode;
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var parentNodeItems = parentNode.Item as EmployeeInfo;
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newItem = new EmployeeInfo() { FirstName = record.FirstName, LastName = record.LastName, ID = record.ID, Salary = record.Salary, Title = record.Title, ReportsTo = parentNodeItems.ID };
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}
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IList sourceCollection = null;
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if (dropPosition == "DropBelow" || dropPosition == "DropAbove")
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{
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if (treeNode.ParentNode != null)
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{
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var collection = AssociatedObject.sfTreeGrid.View.GetPropertyAccessProvider().GetValue(treeNode.ParentNode.Item, AssociatedObject.sfTreeGrid.ChildPropertyName) as IEnumerable;
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sourceCollection = GetSourceListCollection(collection);
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}
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else
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{
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sourceCollection = GetSourceListCollection(AssociatedObject.sfTreeGrid.View.SourceCollection);
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}
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dropIndex = sourceCollection.IndexOf(data);
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if (dropPosition == "DropBelow")
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{
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dropIndex += 1;
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}
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}
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else if (dropPosition == "DropAsChild")
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{
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var collection = AssociatedObject.sfTreeGrid.View.GetPropertyAccessProvider().GetValue(data, AssociatedObject.sfTreeGrid.ChildPropertyName) as IEnumerable;
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sourceCollection = GetSourceListCollection(collection);
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if (sourceCollection == null)
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{
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var list = data.GetType().GetProperty(AssociatedObject.sfTreeGrid.ChildPropertyName).PropertyType.CreateNew() as IList;
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if (list != null)
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{
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AssociatedObject.sfTreeGrid.View.GetPropertyAccessProvider().SetValue(treeNode.Item, AssociatedObject.sfTreeGrid.ChildPropertyName, list);
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sourceCollection = list;
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}
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}
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dropIndex = sourceCollection.Count;
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}
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sourceCollection.Insert(dropIndex, newItem);
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AssociatedObject.sfTreeGrid.SelectionController.ResumeUpdates();
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(AssociatedObject.sfTreeGrid.SelectionController as TreeGridRowSelectionController).RefreshSelection();
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e.Handled = true;
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}
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}
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AssociatedObject.sfDataGrid.View.Remove(record);
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}
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}
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/// <summary>
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/// Gets the source collection of TreeGrid
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/// </summary>
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/// <param name="collection"></param>
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/// <returns></returns>
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private IList GetSourceListCollection(IEnumerable collection)
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{
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IList list = null;
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if (collection == null)
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collection = AssociatedObject.sfTreeGrid.View.SourceCollection;
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if ((collection as IList) != null)
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{
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list = collection as IList;
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}
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return list;
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}
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/// <summary>
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/// Customize the Drop event.restrict the certain record and Drop position from drop.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void sfDataGrid_Drop(object sender, GridRowDropEventArgs e)
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{
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if (e.IsFromOutSideSource)
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{
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var draggingRecord = e.Data.GetData("Nodes") as ObservableCollection<TreeNode>;
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var record = draggingRecord[0].Item as EmployeeInfo;
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int dropIndex = (int)e.TargetRecord;
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var dropPosition = e.DropPosition.ToString();
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if (record.Title == "Manager")
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{
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e.Handled = true;
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return;
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}
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IList collection = null;
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collection = AssociatedObject.sfDataGrid.View.SourceCollection as IList;
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if (dropPosition == "DropAbove")
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{
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dropIndex--;
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collection.Insert(dropIndex, record);
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}
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else
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{
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dropIndex++;
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collection.Insert(dropIndex, record);
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}
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AssociatedObject.sfTreeGrid.View.Remove(record);
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e.Handled = true;
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}
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}
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protected override void OnDetaching()
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{
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base.OnDetaching();
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AssociatedObject.sfDataGrid.RowDragDropController.Drop -= sfDataGrid_Drop;
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AssociatedObject.sfTreeGrid.RowDragDropController.Drop -= sfTreeGrid_Drop;
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}
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}
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}

‎DragDropBetweenDataGridTreeGrid_2010.csproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{A7057548-EB17-4CA0-A5CF-A009D04674BF}</ProjectGuid>
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<OutputType>WinExe</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>DragDropBetweenDataGridTreeGrid</RootNamespace>
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<AssemblyName>DragDropBetweenDataGridTreeGrid</AssemblyName>
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<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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<WarningLevel>4</WarningLevel>
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<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="ReachFramework" />
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<Reference Include="Syncfusion.Data.WPF">
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</Reference>
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<Reference Include="Syncfusion.SfGrid.WPF">
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</Reference>
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<Reference Include="Syncfusion.Shared.WPF">
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</Reference>
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<Reference Include="System" />
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<Reference Include="System.ComponentModel.DataAnnotations" />
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<Reference Include="System.Data" />
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<Reference Include="System.Runtime.Serialization" />
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<Reference Include="System.Windows.Interactivity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
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<Reference Include="System.Xml" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="System.Xaml">
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<RequiredTargetFramework>4.0</RequiredTargetFramework>
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</Reference>
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<Reference Include="WindowsBase" />
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<Reference Include="PresentationCore" />
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<Reference Include="PresentationFramework" />
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</ItemGroup>
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<ItemGroup>
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<ApplicationDefinition Include="App.xaml">
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<Generator>MSBuild:Compile</Generator>
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<SubType>Designer</SubType>
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</ApplicationDefinition>
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<Compile Include="DragDropBehavior.cs" />
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<Compile Include="Settings.cs" />
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<Compile Include="ViewModel.cs" />
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<Page Include="MainWindow.xaml">
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<Generator>MSBuild:Compile</Generator>
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<SubType>Designer</SubType>
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</Page>
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<Compile Include="App.xaml.cs">
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<DependentUpon>App.xaml</DependentUpon>
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<SubType>Code</SubType>
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</Compile>
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<Compile Include="MainWindow.xaml.cs">
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<DependentUpon>MainWindow.xaml</DependentUpon>
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<SubType>Code</SubType>
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</Compile>
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</ItemGroup>
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<ItemGroup>
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<Compile Include="EmployeeInfo.cs" />
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<Compile Include="Properties\AssemblyInfo.cs">
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<SubType>Code</SubType>
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</Compile>
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<Compile Include="Properties\Resources.Designer.cs">
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<AutoGen>True</AutoGen>
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<DesignTime>True</DesignTime>
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<DependentUpon>Resources.resx</DependentUpon>
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</Compile>
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<Compile Include="Properties\Settings.Designer.cs">
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<AutoGen>True</AutoGen>
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<DependentUpon>Settings.settings</DependentUpon>
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<DesignTimeSharedInput>True</DesignTimeSharedInput>
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</Compile>
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<EmbeddedResource Include="Properties\Resources.resx">
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<Generator>ResXFileCodeGenerator</Generator>
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<LastGenOutput>Resources.Designer.cs</LastGenOutput>
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</EmbeddedResource>
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<None Include="Properties\Settings.settings">
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<Generator>SettingsSingleFileGenerator</Generator>
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<LastGenOutput>Settings.Designer.cs</LastGenOutput>
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</None>
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<AppDesigner Include="Properties\" />
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</ItemGroup>
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<ItemGroup>
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<None Include="App.config" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
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Other similar extension points exist, see Microsoft.Common.targets.
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<Target Name="BeforeBuild">
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</Target>
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<Target Name="AfterBuild">
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</Target>
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-->
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</Project>

‎DragDropBetweenDataGridTreeGrid_2010.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 2010
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DragDropBetweenDataGridTreeGrid_2010", "DragDropBetweenDataGridTreeGrid_2010.csproj", "{A7057548-EB17-4CA0-A5CF-A009D04674BF}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{A7057548-EB17-4CA0-A5CF-A009D04674BF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{A7057548-EB17-4CA0-A5CF-A009D04674BF}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{A7057548-EB17-4CA0-A5CF-A009D04674BF}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{A7057548-EB17-4CA0-A5CF-A009D04674BF}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal

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