datalist控件ItemCommand与DataList1_ItemDataBound编程实例，使用示例数据库

<form id="form1" runat="server">
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="SqlDataSource1">
</asp:Repeater>
<asp:DataList ID="DataList1" runat="server" DataKeyField="ProductID" DataSourceID="SqlDataSource1"
OnItemCommand="DataList1_ItemCommand" OnItemDataBound="DataList1_ItemDataBound">
<ItemTemplate>
ProductID:
<asp:Label ID="ProductIDLabel" runat="server" Text='<%# Eval("ProductID") %>'></asp:Label><br />
ProductName:
<asp:Label ID="ProductNameLabel" runat="server" Text='<%# Eval("ProductName") %>'></asp:Label><br />
SupplierID:
<asp:Label ID="SupplierIDLabel" runat="server" Text='<%# Eval("SupplierID") %>'></asp:Label><br />
CategoryID:
<asp:Label ID="CategoryIDLabel" runat="server" Text='<%# Eval("CategoryID") %>'></asp:Label><br />
QuantityPerUnit:
<asp:Label ID="QuantityPerUnitLabel" runat="server" Text='<%# Eval("QuantityPerUnit") %>'></asp:Label><br />
UnitPrice:
<asp:Label ID="UnitPriceLabel" runat="server" Text='<%# Eval("UnitPrice") %>'></asp:Label><br />
UnitsInStock:
<asp:Label ID="UnitsInStockLabel" runat="server" Text='<%# Eval("UnitsInStock") %>'></asp:Label><br />
UnitsOnOrder:
<asp:Label ID="UnitsOnOrderLabel" runat="server" Text='<%# Eval("UnitsOnOrder") %>'></asp:Label><br />
ReorderLevel:
<asp:Label ID="ReorderLevelLabel" runat="server" Text='<%# Eval("ReorderLevel") %>'></asp:Label><br />
Discontinued:
<asp:Label ID="DiscontinuedLabel" runat="server" Text='<%# Eval("Discontinued") %>'></asp:Label><br />
CategoryName:
<asp:Label ID="CategoryNameLabel" runat="server" Text='<%# Eval("CategoryName") %>'></asp:Label><br />
<br />
<asp:Button ID="del" runat="server"
CommandName="dele" Text="Button" />
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
SelectCommand="SELECT * FROM [Alphabetical list of products]"></asp:SqlDataSource>

</form>

protected void Page_Load(object sender, EventArgs e)
{

}

protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
if (e.CommandName == "dele")
{
Button dele = (Button)e.Item.FindControl("del");
dele.Text=e.CommandArgument.ToString();

Response.Write("<mce:script language = javascript><!--
alert('别删了，试试就可以了！');
// --></mce:script>");
}

}
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{

Button dele = (Button)e.Item.FindControl("del");
dele.OnClientClick = "javascript:return confirm('您确定要删除该项么?')";
dele.CommandArgument = DataBinder.Eval(e.Item.DataItem, "ProductID").ToString();

}