<asp:DataList ID="DataList1" runat="server" OnItemCommand="DataList1_ItemCommand" OnDeleteCommand="DataList1_DeleteCommand" OnItemDataBound="DataList1_ItemDataBound" DataKeyField="Id" ><asp:LinkButton ID="LinkButton2" runat="server" Text='<%#Eval("OrderId")%>' CommandName="select"></asp:LinkButton><asp:LinkButton ID="LinkButton1" CommandName="delete" runat="server">删除</asp:LinkButton>protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
if (e.CommandName == "select")
{
DataList1.SelectedIndex = e.Item.ItemIndex;
BindDataList1();
}
} protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemIndex != -1)
{
LinkButton bb = (LinkButton)e.Item.FindControl("LinkButton1");
bb.Attributes.Add("onclick", "javascript:return confirm('删除后将不能恢复!确定要删除吗?')");
}
}
为什么我加了ItemDateBound后,点linkbutton2的时候会提示 未将对象引用设置到对象的实例。
bb.Attributes.Add("onclick", "javascript:return confirm('删除后将不能恢复!确定要删除吗?')");
{
if (e.CommandName == "select")
{
DataList1.SelectedIndex = e.Item.ItemIndex;
BindDataList1();
}
} protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemIndex != -1)
{
LinkButton bb = (LinkButton)e.Item.FindControl("LinkButton1");
bb.Attributes.Add("onclick", "javascript:return confirm('删除后将不能恢复!确定要删除吗?')");
}
}
为什么我加了ItemDateBound后,点linkbutton2的时候会提示 未将对象引用设置到对象的实例。
bb.Attributes.Add("onclick", "javascript:return confirm('删除后将不能恢复!确定要删除吗?')");
private void DataList1_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
{
if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
LinkButton lbDelete = (LinkButton)e.Item.FindControl("lbDel"); lbDelete.Attributes.Add("onclick", "return confirm(\"确定删除吗?\");");
}
}
if(bb!=null)
bb.Attributes.Add("onclick", "javascript:return confirm('删除后将不能恢复!确定要删除吗?')");
或者直接写在HTML代码里面,如:
<asp:LinkButton ID="LinkButton1" CommandName="delete" runat="server" OnClientClick="return confirm('确定删除吗?');">删除 </asp:LinkButton>