C# 在gridview中使用OnSelectChange打印到标签

我在VS2012中使用asp.net和C对我的数据网格进行了On-Select更改，但由于某些原因，所选行没有打印在我的标签上，我不是C方面的专家，虽然我正在学习，但有人能告诉我我是否犯了错误

谢谢

C代码

asp.net

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在标记中，您需要添加OnSelectedIndexChanged=Latest\u DVD\u SelectedIndexChanged，如下所示：

<asp:GridView ID="DG_Latest" runat="server" AutoGenerateSelectButton="True" 
BackColor="White" BorderColor="#999999" BorderStyle="None" 
BorderWidth="1px" CellPadding="3" GridLines="Vertical" 
OnSelectedIndexChanged="Latest_DVD_SelectedIndexChanged">
    <AlternatingRowStyle BackColor="#DCDCDC" />
    <FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
    <HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
    <RowStyle BackColor="#EEEEEE" ForeColor="Black" />
    <SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
    <SortedAscendingCellStyle BackColor="#F1F1F1" />
    <SortedAscendingHeaderStyle BackColor="#0000A9" />
    <SortedDescendingCellStyle BackColor="#CAC9C9" />
    <SortedDescendingHeaderStyle BackColor="#000065" />             
</asp:GridView>

您需要正确连接选定的索引更改

试试这个：

<asp:GridView ID="DG_Latest" runat="server" AutoGenerateSelectButton="True"   
BackColor="White" BorderColor="#999999" BorderStyle="None" BorderWidth="1px" 
CellPadding="3" GridLines="Vertical" 
OnSelectedIndexChanged="Latest_DVD_SelectedIndexChanged">
        <AlternatingRowStyle BackColor="#DCDCDC" />
        <FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
        <HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
        <RowStyle BackColor="#EEEEEE" ForeColor="Black" />
        <SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
        <SortedAscendingCellStyle BackColor="#F1F1F1" />
        <SortedAscendingHeaderStyle BackColor="#0000A9" />
        <SortedDescendingCellStyle BackColor="#CAC9C9" />
        <SortedDescendingHeaderStyle BackColor="#000065" />             
   </asp:GridView>  

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谢谢@afzalugh显示一个错误。错误20“ASP.default\u aspx”不包含“DG\u Latest\u SelectedIndexChanged”的定义@Beep：您需要正确连接SelectedIndexChanged事件，请检查我的回答谢谢您@Sudhakar Tirapudi不幸的是，我之前尝试过，但我返回了此错误：错误1’\u default.Latest\u DVD\u SelectedIndexChangedobject，System.EventArgs'由于其保护级别为C:\Users\ben\Dropbox\ben&Andrew\DataBase\members\Default.aspx，因此无法访问16@Beep：将您的事件更改为最新\u DVD\u SelectedIndexChanged access modifier为protected in code behind，检查我的编辑。protected void。。。我觉得自己像个傻瓜，一如既往地感谢你苏达卡·提拉普迪，你帮了我大忙。@Beep：别担心，亲爱的，每个人都应该从某个角度出发。顺便说一句，我很高兴能帮助您。祝您愉快。@Afzalugh:谢谢。将您的代码调试到最新的\u DVD\u SelectedIndexChanged，并检查事件是否触发

<asp:GridView ID="DG_Latest" runat="server" AutoGenerateSelectButton="True" 
BackColor="White" BorderColor="#999999" BorderStyle="None" 
BorderWidth="1px" CellPadding="3" GridLines="Vertical" 
OnSelectedIndexChanged="Latest_DVD_SelectedIndexChanged">
    <AlternatingRowStyle BackColor="#DCDCDC" />
    <FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
    <HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
    <RowStyle BackColor="#EEEEEE" ForeColor="Black" />
    <SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
    <SortedAscendingCellStyle BackColor="#F1F1F1" />
    <SortedAscendingHeaderStyle BackColor="#0000A9" />
    <SortedDescendingCellStyle BackColor="#CAC9C9" />
    <SortedDescendingHeaderStyle BackColor="#000065" />             
</asp:GridView>

<asp:GridView ID="DG_Latest" runat="server" AutoGenerateSelectButton="True"   
BackColor="White" BorderColor="#999999" BorderStyle="None" BorderWidth="1px" 
CellPadding="3" GridLines="Vertical" 
OnSelectedIndexChanged="Latest_DVD_SelectedIndexChanged">
        <AlternatingRowStyle BackColor="#DCDCDC" />
        <FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
        <HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
        <RowStyle BackColor="#EEEEEE" ForeColor="Black" />
        <SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
        <SortedAscendingCellStyle BackColor="#F1F1F1" />
        <SortedAscendingHeaderStyle BackColor="#0000A9" />
        <SortedDescendingCellStyle BackColor="#CAC9C9" />
        <SortedDescendingHeaderStyle BackColor="#000065" />             
   </asp:GridView>  

protected void Latest_DVD_SelectedIndexChanged(Object sender, EventArgs e)
{
GridViewRow row = DG_Latest.SelectedRow;
MessageLabel.Text = "You selected " + row.Cells[2].Text + ".";
}