求助,GridView使用Button删除行得问题!!!!!!!
我在模板里边添加了一个button
Protected   Sub   GridView1_RowDeleting(ByVal   sender   As   Object,   ByVal   e   As   GridViewDeleteEventArgs)
                Dim   id   As   Integer   =   GridView1.DataKeys(e.RowIndex).Value
                Dim   adapter   As   New   ArticleSetTableAdapters.Table1TableAdapter()
                adapter.Delete(id)
                Response.Redirect( "/control.aspx ")
        End   Sub

使用gridview自带得删除功能可以删除

但是在button得   click事件里边添加

  Protected   Sub   Button1_Click(ByVal   sender   As   Object,   ByVal   e   As   System.EventArgs)
                Dim   u   As   String   =   CType(sender,   Button).CommandArgument()

                Dim   adapter   As   New   ArticleSetTableAdapters.Table1TableAdapter()
                adapter.Delete(u)
这样就有错误

请高手赐教

错误是

Invalid   postback   or   callback   argument.     Event   validation   is   enabled   using   <pages   enableEventValidation= "true "/>   in   configuration   or   <%@   Page   EnableEventValidation= "true "   %>   in   a   page.     For   security   purposes,   this   feature   verifies   that   arguments   to   postback   or   callback   events   originate   from   the   server   control   that   originally   rendered   them.     If   the   data   is   valid   and   expected,   use   the   ClientScriptManager.RegisterForEventValidation   method   in   order   to   register   the   postback   or   callback   data   for   validation.

------解决方案--------------------
protected void btnDelete_Click(object sender, EventArgs e)
{
foreach (GridViewRow gvr in gvLoans.Rows)
{
CheckBox chk = (CheckBox)gvr.Cells[1].FindControl( "chk ");
if (chk.Checked)
{
gvLoans.DeleteRow(gvr.RowIndex);
}
}
}