改变DataGrid里的数据时触发了什么事件？

[untitled12]

TextChanged好象不对

[xumahua]

.net中datagrid的TextChanged事件只是当datagrid的text属性改变时发生，所以这对你没有任何作用，不过你可以为单元格添加TextChanged事件。假设你的datagrid有三列DataGridTextBoxColumn1、DataGridTextBoxColumn2、DataGridTextBoxColumn3

在代码中写：
AddHandler DataGridTextBoxColumn1.TextBox.TextChanged, New EventHandler(AddressOf DataGridTextBoxColumn1_TextChanged)

AddHandler DataGridTextBoxColumn2.TextBox.TextChanged, New EventHandler(AddressOf DataGridTextBoxColumn2_TextChanged)

AddHandler DataGridTextBoxColumn3.TextBox.TextChanged, New EventHandler(AddressOf DataGridTextBoxColumn3_TextChanged)

'///创建datagrid2的DataGridTextBoxColumn1_TextChanged事件
Private Sub DataGridTextBoxColumn1_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
你的代码。。。
End Sub

'///创建datagrid2的DataGridTextBoxColumn2_TextChanged事件
Private Sub DataGridTextBoxColumn2_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
你的代码。。。
End Sub

'///创建datagrid2的DataGridTextBoxColumn3_TextChanged事件
Private Sub DataGridTextBoxColumn3_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
你的代码。。。
End Sub

[xumahua]

如果你每列的TextChanged事件的处理过程都一样的话，那么你只需要创建一个就可以了

'///创建datagrid的TextChanged事件
Private Sub DataGrid_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
你的代码。。。
End Sub

AddHandler DataGridTextBoxColumn1.TextBox.TextChanged, New EventHandler(AddressOf DataGrid_TextChanged)

AddHandler DataGridTextBoxColumn2.TextBox.TextChanged, New EventHandler(AddressOf DataGrid_TextChanged)

AddHandler DataGridTextBoxColumn3.TextBox.TextChanged, New EventHandler(AddressOf DataGrid_TextChanged)

[wantchy]

编辑更新事件

[W_W_Q]

处理相应表的 ColumnChanging 事件就可以了。
Private Sub Customers_ColumnChanging(ByVal sender As Object, _
ByVal e As System.Data.DataColumnChangeEventArgs)
' Only check for errors in the Product column
If (e.Column.ColumnName.Equals("Product")) Then
' Do not allow "Automobile" as a product.
If CType(e.ProposedValue, String) = "Automobile" Then
Dim badValue As Object = e.ProposedValue
e.ProposedValue = "Bad Data"
e.Row.RowError = "The Product column contians an error"
e.Row.SetColumnError(e.Column, "Product cannot be " & _
CType(badValue, String))
End If
End If
End Sub

[untitled12]

那DataGrid_TextChanged什么时候触发？

[tjq_tang]

如果楼主说的是datagrid的数据源改变的事件.
DataSourceChanged该事件可以捕获DataMember的变化
hope it helps

[untitled12]

仿佛不行

[W_W_Q]

ColumnChanging 事件可以进行数据验证，微软都说行，你说行不行？

[untitled12]

我想达到目的：在DataGrid中修改数据，在下次打开时显示已修改的数据，怎么办？