???????????塿
??????????????????????DropDownList?????????????AutoPostback???????DropDownList ??SelectedIndexChanged????У????GridView?е????С?
??????????SelectedIndexChanged????????????
????DropDownList ddl = (DropDownList)sender;
????GridViewRow gvr = (GridViewRow)ddl.NamingContainer;
????int id = int.Parse(GridView1.DataKeys[gvr.RowIndex][0].ToString());
????int num = int.Parse(ddl.Text);
?????????????????????????DropDownList?????
??????????????????NamingContainer???????????????????GridViewRow????
?????????????DropDoweList??button?????????????CommandName????????????NamingContainer?????????????
?????????????????NamingContainer?????????
???????????????????????????????????????????????????????????????? Control.ID ?????????????????
????ASP.NET Web ??ó???????????????????ν??????ν???????????????????? UI ????????????????????????ν??и?????????????????????? INamingContainer ?????????????????????????????????? ID ??????????????????
??????????б? Web ????????????? Repeater ?? DataList ???????????????????????????????????????????????????????????????е???????????????????????????÷?????????????????????????????????????Щ???????????????в?????? UniqueID ??????????????????????????????????? Page ????????
??????????????????????????????????????????????
??????????????
????????????????CheckBox?????????????CheckBox1_CheckedChanged????У????GridView?е????С?
????CheckBox chk = (CheckBox)sender;
????DataControlFieldCell dcf = (DataControlFieldCell)chk.Parent;
????GridViewRow gvr = (GridViewRow)dcf.Parent;
?????????????
????<asp:GridView ID="gvTest" runat="server">
????<Columns>
????<asp:TemplateField>
????<ItemTemplate>
????DisplayIndex : <%# Container.DisplayIndex %> || DataItemIndex : <%# Container.DataItemIndex %><br />
????</ItemTemplate>
????</asp:TemplateField>
????</Columns>
????</asp:GridView>
?????????????
?????????ID??Name?????????????????????????RowCommand()?????ж???е???????У??????????????????????e.CommandArgument???????????????????????GridView???????????????CommandArgument???????????????????????????????????????????????????GridView???????????????????????RowCreated????????????????????????linkButton???????к?д??CommandArgument?С?
????protected void gvInfo_RowCreated(object sender?? GridViewRowEventArgs e)
????{
????if (e.Row.RowType == DataControlRowType.DataRow)
????{
????LinkButton lk1 = (LinkButton)e.Row.FindControl("lkbtn");//LinkButton??ID
????lk1.CommandArgument = e.Row.RowIndex.ToString();
????}
????}
????protected void gvInfo_RowCommand(object sender?? GridViewCommandEventArgs e)
????{
????if (e.CommandName == "ADD")//??LinkButton??CommandName
????{
????int index = Convert.ToInt32(e.CommandArgument);
????string aa = gvInfo.Rows[index].Cells[1].Text.ToString();//?????????к?????????к??0???
????}
????}