MultiRow的Cell的SelectionStart

怎样取得输入的数字在TextBoxCell.Text的位置
如果是TextBox可以用SelectionStart

请参考下面的代码：

2. void Form1_Load(object sender, EventArgs e)
3.         {
4.             this.gcMultiRow1.EditingControlShowing += gcMultiRow1_EditingControlShowing;
5.         }
7.         void gcMultiRow1_EditingControlShowing(object sender, EditingControlShowingEventArgs e)
8.         {
9.             TextBox textBox = e.Control as TextBox;
10.             if (textBox != null)
11.             {
12.                 var selectionStart = textBox.SelectionStart;
13.             }
14.         }

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不好意思，
我用的是VB.NET,可以在从新发个给我吗

回复 3楼junlingzhu2002的帖子

你想在什么时机获取这些属性？
你可以在GcMultiRow的EditingControlShowing事件里面首先拿到e.Control, 将它转换为TextBox，然后再挂TextBox的相关事件，来获取你想要的这几个属性（SelectionStart，SelectionLength）。

1. Public Class Form1
2.     Private Sub GcMultiRow1_EditingControlShowing(sender As Object, e As EditingControlShowingEventArgs) Handles GcMultiRow1.EditingControlShowing
3.         Dim textBox As TextBox = TryCast(e.Control, TextBox)
4.         If textBox IsNot Nothing Then
5.             AddHandler textBox.TextChanged, New EventHandler(AddressOf Me.TextBox_TextChanged)
6.         End If
7.     End Sub
9.     Private Sub TextBox_TextChanged(sender As Object, e As EventArgs)
10.         Dim textBox As TextBox = TryCast(sender, TextBox)
11.         Dim selectionStart = textBox.SelectionStart
12.         Dim selectionLength = textBox.SelectionLength
13.     End Sub
14. End Class

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谢谢