當文本更改時，WPF數據網格更改顏色

Question

當用戶更改該單元格的文本或內容時，我想更改數據網格中單元格的顏色。

我正在使用WPF的C＃。

我有一個簡單的數據網格：

<DataGrid x:Name="dataGrid1" Grid.RowSpan="2" Margin="5" ItemsSource="{Binding Source=Horreos}" KeyDown="dataGrid1_KeyDown" SelectedCellsChanged="dataGrid1_SelectedCellsChanged"> <DataGrid.Columns > </DataGrid.Columns> </DataGrid> 

此事件：KeyDown和selectedcellschange是改變我的一個色彩單元測試。在.cs中，我試着改變了cel ......但是我失敗了。

我需要當內容發生變化

Answer 1

設置一個行爲，最簡單的方法是使用混合時釋放的事件。我提供針對數據網格的例子在我的博客文章：Xaml: Adding Visibility Behaviors Using Blend to A DataGrid for WPF or Silverlight

Answer 2

解決：

private void dataGrid1_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e) 
    { 
     DataGridCell gridCell = null; 
     try 
     { 
      gridCell = GetCell(dataGrid1.SelectedCells[0]); 
     } 
     catch (Exception) 
     { 
     } 
     if (gridCell != null) 
      gridCell.Background = Brushes.Red; 

    } 
public DataGridCell GetCell(DataGridCellInfo dataGridCellInfo) 
    { 
     if (!dataGridCellInfo.IsValid) 
     { 
      return null; 
     } 

     var cellContent = dataGridCellInfo.Column.GetCellContent(dataGridCellInfo.Item); 
     if (cellContent != null) 
     { 
      return (DataGridCell)cellContent.Parent; 
     } 
     else 
     { 
      return null; 
     } 
    } 

private void MyDataGrid_LoadingRow(object sender, DataGridRowEventArgs e) 
    { 
     DataGrid grid = sender as DataGrid; 
     e.Row.MouseEnter += (s, args) => Row_MouseEnter(s, grid); 
     e.Row.MouseLeave += (s, args) => Row_MouseLeave(s, grid); 
    } 

    void Row_MouseLeave(object sender, DataGrid grid) 
    { 
     DataGridRow row = sender as DataGridRow; 
     grid.SelectedIndex = -1; 
    } 

    void Row_MouseEnter(object sender, DataGrid grid) 
    { 
     DataGridRow row = sender as DataGridRow; 
     grid.SelectedIndex = row.GetIndex(); 

    } 

當用戶完成編輯單元格變爲紅色。

<DataGrid x:Name="dataGrid1" Grid.RowSpan="2" SelectionUnit="CellOrRowHeader" 
        Margin="5" ItemsSource="{Binding Source=Source}" LoadingRow="MyDataGrid_LoadingRow" CellEditEnding="dataGrid1_CellEditEnding"> 
      <DataGrid.Columns>