在 vb.net 中在特定条件下清除 gridview
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Clearing gridview upon certain condition in vb.net
提问by C Sharper
on textbox blank, i wanted to clear my gridview source
在文本框空白上，我想清除我的 gridview 源
But i was not able to do it in vb.net.
但我无法在 vb.net 中做到这一点。
After referring several answers i tried following unsuccessfull attempts:
在参考了几个答案后，我尝试了以下不成功的尝试：
grdUsers.rows.clear(): Does not work with vb.net
grdUsers.rows.clear(): 不适用于 vb.net
grdUsers.DataSource=""
grdUsers.columns.clear()
But it does not worked out.
但它没有解决。
Please help me to clear my datasource of gridview.
请帮我清除我的 gridview 数据源。
回答by Alex
If your DataGridView is bound to a DataSource and you want to clear it then you can use the Nothingkeyword followed by a DataBind().
如果您的 DataGridView 绑定到一个 DataSource 并且您想清除它，那么您可以使用Nothing关键字后跟一个DataBind().
grdUsers.DataSource = Nothing
grdUsers.DataBind()
Here is more information on the DataBind() method.
If you want to clear your rows when the text is empty in TextBox1, you would create a TextChanged event for your textbox ...
如果要在 TextBox1 中的文本为空时清除行，可以为文本框创建一个 TextChanged 事件...
Private Sub TextBox1_TextChanged(sender As Object, e As System.EventArgs) Handles TextBox1.TextChanged
If TextBox1.Text.Trim = "" Then
grdUsers.DataSource = Nothing
grdUsers.DataBind()
End If
End Sub
