ASP.NET Gridview所选索引已更改，无法触发 [英] ASP.NET Gridview Selected Index Changed not firing

问题描述

这个问题已经问了好几次了，但仍然如此.

This has been asked quite a few times, but still.

在GridView中定义事件OnSelectedIndexChanged.我的期望是，如果我在gridview中单击一行，则会触发该事件.我设法对图像按钮进行了相同的操作，但是我希望整个行都可以单击.

In GridView is defined event OnSelectedIndexChanged. My expectation is, that if I click on a row in gridview, the event will be fired. I managed to do the same with image buttons, but I want the entire row to be clickable.

<asp:GridView runat="server" ID="gameGrid" PageSize="20" PagerSettings-Mode="NextPreviousFirstLast"
    OnRowDataBound="GameGrid_RowDataBound" OnPageIndexChanging="GameGrid_PageIndexChanging"
    AutoGenerateColumns="false" CssClass="table table-hover table-striped" AllowPaging="True"
    AllowSorting="True" ShowHeaderWhenEmpty="True" OnSelectedIndexChanged="gameGrid_SelectedIndexChanged">
    <Columns>
        <asp:BoundField HeaderText="Game Id" DataField="ID_Game" SortExpression="ID_Game" />
        <asp:BoundField HeaderText="Player" DataField="Email" SortExpression="Email" />
        <asp:BoundField HeaderText="Finshed" SortExpression="Finished" />
        <asp:BoundField HeaderText="Started At" SortExpression="CreateDate" />
        <asp:BoundField HeaderText="Last Updated At" SortExpression="LastUpdate" />
    </Columns>
</asp:GridView>

我假设如果我在CodeBehind中定义一个EventHandler，它将被触发.

I was assuming that if I define an EventHandler in CodeBehind, it will be fired.

protected void gameGrid_SelectedIndexChanged(object sender, EventArgs e)
{
    int i = 0;
}

为什么此事件不触发?

我想使用URL中的ID参数将用户重定向到其他页面上.我应该做些不同的事情吗?

I would like to redirect the user on a different page with an ID parameter in URL. Should I do something different?

推荐答案

首先，在GridView中将 AutoGenerateSelectButton 属性设置为true.这将生成一个LinkBut​​ton.现在，在 RowDataBound 事件中执行以下操作.

First, set the AutoGenerateSelectButton property to true in the GridView. This will generate a LinkButton. Now in the RowDataBound event do the following.

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //check if the row is a datarow
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        //find the select button in the row (in this case the first control in the first cell)
        LinkButton lb = e.Row.Cells[0].Controls[0] as LinkButton;

        //hide the button, but it still needs to be on the page
        lb.Attributes.Add("style", "display:none");

        //add the click event to the gridview row
        e.Row.Attributes.Add("onclick", Page.ClientScript.GetPostBackClientHyperlink((GridView)sender, "Select$" + e.Row.RowIndex));
    }
}

您可以在不显示 SelectButton 的情况下将OnClick事件添加到该行，但是随后您将关闭 EnableEventValidation ，如此处

You could add the OnClick event to the row without showing the SelectButton, but then you would to turn off EnableEventValidation as seen here How to create a gridview row clickable?

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