由UpdatePanel内的GridView内的LinkBut​​ton触发的完整回发

Question

我在UpdatePanel中有一个GridView.在模板字段中是我用于标记项目的按钮.在功能上,这工作正常,但按钮总是触发整页回发而不是部分回发.如何让按钮触发部分回发？

<asp:ScriptManager ID="ContentScriptManager" runat="server" />
<asp:UpdatePanel ID="ContentUpdatePanel" runat="server" ChildrenAsTriggers="true">
    <ContentTemplate>
        <asp:GridView ID="OrderGrid" runat="server" AllowPaging="false" AllowSorting="false"
            AutoGenerateColumns="false">
            <Columns>
                <asp:TemplateField HeaderText="">
                    <ItemTemplate>
                        <asp:LinkButton ID="MarkAsCompleteButton" runat="server" Text="MarkAsComplete"
                            CommandName="MarkAsComplete" CommandArgument='<%# Eval("Id") %>' />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Name" HeaderText="Name" />
                <asp:BoundField DataField="LoadDate" HeaderText="Load Date" />
                <asp:BoundField DataField="EmployeeCutOffDate" HeaderText="Cut Off Date" />
                <asp:BoundField DataField="IsComplete" HeaderText="Is Completed" />
            </Columns>
        </asp:GridView>
    </ContentTemplate>
</asp:UpdatePanel>

Answer 1

您需要将每个LinkBut​​ton注册为AsyncPostBackTrigger.在GridView中绑定每一行之后,您需要搜索LinkBut​​ton并通过代码隐藏注册它,如下所示:

protected void OrderGrid_RowDataBound(object sender, GridViewRowEventArgs e)  
{  
   LinkButton lb = e.Row.FindControl("MarkAsCompleteButton") as LinkButton;  
   ScriptManager.GetCurrent(this).RegisterAsyncPostBackControl(lb);  
}  

这也要求ClientIDMode="AutoID"可以为LinkBut​​ton的设定,如提到这里(感谢的Răzvan熊猫指出这一点).

Answer 2

可能没有建议,但你可以通过排除AsyncPostBackTrigger上的EventName来使GridView上的所有内容异步工作,例如

<Triggers>
  <asp:AsyncPostBackTrigger ControlID="OrderGrid" />
</Triggers>

这将使GridView上的RowCommand事件和任何其他事件异步触发.另请注意,当您在GridView上创建ClientIDMode ="Static"时,它将导致完整的回发.

Answer 3

我的网格视图处于条件模式。

protected void gvAgendamentoExclui_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow) {
            LinkButton lnk = e.Row.FindControl("LinkButton2") as LinkButton;
            AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
            trigger.ControlID = lnk.UniqueID;
            trigger.EventName = "Click";
            UpdatePanel2.Triggers.Add(trigger);

        }
    }

在链接按钮的点击事件中，我放了：

protected void LinkButton2_Click(object sender, EventArgs e)
    {
        UpdatePanel2.Update();
    }