在DataGrid的模板列中加入的DropDownList控件
<asp:DropDownList runat="server" id="ddl" AutoPostBack="True" OnSelectedIndexChanged="ddl_SelectedIndexChanged" />
然后你在.aspx.vb中加入一个函数
Protected Sub ddlOprStyle_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As EventArgs)'不可以使用private声明,必须用public和protected
Dim DdList As DropDownList
DdList = CType(sender, DropDownList)
Dim i As Int32
Dim DdListDg As DropDownList
'查询当前选择的ddlist
For i = 0 To dgMsg.Items.Count - 1
DdListDg = CType(dgMsg.Items(i).FindControl("ddl"), DropDownList)
If DdList.UniqueID.CompareTo(DdListDg.UniqueID) = 0 Then
'插入要处理的事件,如绑定等等
End If
Next i
End Sub
Dim DdList As DropDownList
DdList = CType(sender, DropDownList)
Dim i As Int32
Dim DdListDg As DropDownList
'查询当前选择的ddlist
For i = 0 To dgMsg.Items.Count - 1
DdListDg = CType(dgMsg.Items(i).FindControl("ddl"), DropDownList)
If DdList.UniqueID.CompareTo(DdListDg.UniqueID) = 0 Then
'插入要处理的事件,如绑定等等
End If
Next i
End Sub
上面的代码功能是获得当前响应的DropDownList在DataGrid中的行index值,并处理相关方法。
实现方法是通过循环判定.DataGrid中为每个子控件唯一指定的UniqueID值是否与当前选定的DropDownList的UniqueID相等。
2006-07-07:最近又找到一个更方便的方法,只要通过增加事件就可以了
看上面的代码,在
dim DdListDg as DropDownList
DdListDg=CType(dgMsg.Items(i).FindControl("ddl"),DropDownList)后面
增加事件
AddHandler DdListDg.SelectedIndexChanged, AddressOf Update
然后定义要执行的sub就行
Private Sub Update()
' 写要用的代码
End Sub