摘要:GridView的RowCommand如何抓到被選的RowIndex
1. GridView自訂按鈕(Gridview身體裡面並設定CommandName)，按下後要抓到「當下被選RowIndex」，進而抓到Row裡面的控制項RowCommand
方法一 : e.CommandArgument
1.GridView +sqlDataSource小精靈
2.GridView身體裡新增一個按鈕欄位並設定CommandName
<asp:ButtonField CommandName="GridRows" Text="按鈕" />
3.RowCommand
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "GridRows") {
//抓到RowCommand選取時的Row的所引編號
int pk_key =Convert.ToInt32(e.CommandArgument);
//抓到RowCommand選取時的控制項
GridViewRow gr = (GridViewRow)GridView1.Rows[pk_key];
Label lb1 = (Label)GridView1.Rows[gr.DataItemIndex].FindControl("Label1");
Response.Write("GridView Row Index : " + pk_key.ToString()+"<br/>");
Response.Write(lb1.Text);
}
}
方法二 : e.CommandSource
1.GridView +sqlDataSource小精靈
2.GridView身體裡新增一個按鈕欄位轉成樣板,並設定CommandName
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="false"
CommandName="Button" Text="按鈕"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
3.RowCommand
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Button") {
//Button欄位要轉成樣板System.Web.UI.WebControls.LinkButton
//Button欄位若沒有轉成樣板System.Web.UI.WebControls.GridView
//Response.Write(e.CommandSource.ToString());
LinkButton bt = (LinkButton)e.CommandSource;
// LinkButton bt = (LinkButton)sender --錯誤這會抓到GridView
GridViewRow gdrow = (GridViewRow)bt.NamingContainer;
//由控制項抓到Row
Label lb1 = (Label)GridView1.Rows[gdrow.DataItemIndex].FindControl("Label1");
Response.Write("RowIndex : " + gdrow.DataItemIndex.ToString());
Response.Write(lb1.Text);
}
}
若是欄位轉成樣板，執行就會是對的
LinkButton bt = (LinkButton)e.CommandSource;
若是沒有轉成樣板
LinkButton bt = (LinkButton)e.CommandSource;就會錯誤
e.CommandSource只會抓到GridView而已
內容為Mis2000Lab學筆記 參考 :