c# – GridView’OrdersGridView’触发的事件RowDeleting没有被处理

我一遍又一遍地收到这个错误.

将数据加载到GridView中起作用,但是当我想删除一行时,我会收到该错误.

<asp:GridView ID="OrdersGridView" runat="server" AutoGenerateColumns="False" onrowdeleted="OrdersGridView_RowDeleted">
    <Columns>
        <asp:TemplateField HeaderText="Product Name">
            <ItemTemplate>
                <asp:HiddenField runat="server" ID="HiddenField1" Value='<%#Eval("oid")%>'></asp:HiddenField>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField datafield="titel" HeaderText="Name" />
        <asp:BoundField datafield="oid" HeaderText="Itemno" />
        <asp:BoundField datafield="prijs" HeaderText="Price" />
        <asp:CommandField ButtonType="Link" CausesValidation="false" HeaderText="Update" ShowDeleteButton="True" />
        <asp:BoundField datafield="prijs" HeaderText="Subtotal" />
    </Columns>
</asp:GridView>

C#codebehind – 我不是真的从数据库中删除行,但它是一个测试：

protected void OrdersGridView_RowDeleted(object sender,System.Web.UI.WebControls.GridViewDeletedEventArgs e)
{
    if (e.Exception != null)
    {
        lblStatus.Text = e.Exception.ToString();
    }
    else 
    {
        string sValue = ((HiddenField)OrdersGridView.SelectedRow.Cells[1].FindControl("HiddenField1")).Value;
        lblStatus.Text = sValue;
    }
}

但点击后,我得到一个bigass黄页与下一个错误：

The GridView ‘OrdersGridView’ fired event RowDeleting which wasn’t handled.

解决方法

删除按钮,甚至是具有CommandName的删除的GridView中的常规按钮,将自动尝试启动OnRowDeleting.你可以添加它来使事情变得快乐,但不要做任何事情,所以它不会影响你的删除行为.

您可以将OnRowDeleting添加到GridView中：

<asp:GridView ID="OrdersGridView" runat="server" AutoGenerateColumns="False" onrowdeleted="OrdersGridView_RowDeleted" OnRowDeleting="OrdersGridView_RowDeleting">

然后在你的CodeBehind中添加：

void OrdersGridView_RowDeleting (object sender,GridViewDeleteEventArgs e)
{
}