[Asp.Net] 學習筆記CommandArgument

ASP中用Button傳遞兩個職給後台的方法：

1、在CommandArgument中用逗號分隔要傳送到後台的兩個參數：

<asp:GridView ID="GridViewUserScraps" ItemStyle-VerticalAlign="Top" 

AutoGenerateColumns="False" Width="100%" runat="server" 

OnRowCommand="GridViews_RowCommand" >

<Columns>

<asp:TemplateField SortExpression="SendDate">

<ItemTemplate>

<asp:Button ID="btnPost" CssClass="submitButton" Text="Comment" 

runat="server" CommandName="Comment" 

CommandArgument='<%#Eval("ID")+","+ Eval("UserID")%>' />

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

p.s.也可以用這種 CommandArgument='<%# DataBinder.Eval(Container.DataItem,"ID") + "," +  DataBinder.Eval(Container.DataItem,"UserID")%>' 

2、C#後台接收到button傳遞的參數後的處理方法：

protected void GridViews_RowCommand(object sender, GridViewCommandEventArgs e)if (e.CommandName == "Comment")

string[] commandArgs = e.CommandArgument.ToString().Split(new char[] { ',' }

string ID = commandArgs[0]； //傳遞參數1

string UserID = commandArgs[1]；//傳遞參數2