asp.net关于GridViewCommandEventArgs参数的问题
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<script runat="server">
protected void grdMovieCategories_RowCommand(object sender, GridViewCommandEventArgs e)
{
int index = Int32.Parse((string)e.CommandArgument);
int id = (int)grdMovieCategories.DataKeys[index].Values["Id"];
int position = (int)grdMovieCategories.DataKeys[index].Values["Position"];
switch (e.CommandName)
{
case "Up":
position--;
break;
case "Down":
position++;
break;
}
srcMovieCategories.UpdateParameters["Id"].DefaultValue = id.ToString();
srcMovieCategories.UpdateParameters["Position"].DefaultValue = position.ToString();
srcMovieCategories.Update();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Show ButtonField</title>
</head>
<body>
<form runat="server">
<div>
<asp:GridView
DataSource
DataKeyNames="Id,Position"
AutoGenerateColumns="false"
OnRowCommand="grdMovieCategories_RowCommand"
Runat="server">
<Columns>
<asp:ButtonField
Text="Move Up"
CommandName="Up" />
<asp:ButtonField
Text="Move Down"
CommandName="Down" />
<asp:BoundField
DataField="Position"
HeaderText="Position" />
<asp:BoundField
DataField="Name"
HeaderText="Category Name" />
</Columns>
</asp:GridView>
<asp:SqlDataSource
ConnectionString="<%$ ConnectionStrings:Movies %>"
SelectCommand="SELECT Id, Name, Position FROM MovieCategories
ORDER BY Position"
UpdateCommand="UPDATE MovieCategories SET
Position=@Position WHERE Id=@Id"
Runat="server">
<UpdateParameters>
<asp:Parameter
Name="Id" />
<asp:Parameter
Name="Position" />
</UpdateParameters>
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
例如这么一个程序,e.CommandArgument怎么取出来行序列的?又没有定义过CommandArgument的值
慕尼黑56888552回答
-
慕田峪9158850
是在这里定义的： <asp:ButtonField Text="Move Up" CommandName="Up" /> <asp:ButtonField Text="Move Down" CommandName="Down" /> -
holdtom
默认就是这个
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.NET