C# 单击按钮获取行id

我需要通过单击按钮从数据库中获取行id

这是我的c#代码：

这是一个动态GridView，在选择ddl中的项时由过程填充：

<asp:GridView ID="gvKar" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" AutoGenerateColumns="False" DataKeyNames="LevelID" OnRowDataBound="gvKarakteristike_RowDataBound">
    <AlternatingRowStyle BackColor="White" />
    <Columns>
        <asp:TemplateField HeaderText="Kar">
            <ItemTemplate>
                <asp:Label ID="Kar" runat="server" Width="150px" Height="30px" Font-Names="Georgia" MyCustomAttr="foo" margin-Left="100px" Text='<%# Bind("CharName") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

<asp:Button ID="btnButton" runat="server" Text="Show"  autopostback="True"/>

当以警报的形式单击按钮时，必须从数据库中显示每一行的行id

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有人能帮我吗？

我使用这样的代码为行分配一个单击处理程序：

Protected Sub Grid_RowDataBound(sender As Object, e As GridViewRowEventArgs)

    'apply click attribute to select a row 
    If e.Row.RowType = DataControlRowType.DataRow Then
        e.Row.Attributes("onclick") = ClientScript.GetPostBackClientHyperlink(sender, "Select$" & e.Row.RowIndex)
    End If

End Sub

然后，这将从datakeys集合中获取相关数据

Protected Sub Grid_RowCommand(sender As Object, e As GridViewCommandEventArgs)

    If e.CommandName = "Select" Then
        Dim LevelID As String = GridResults.DataKeys(e.CommandArgument).Item("LevelID")
        ' Do something with ID here
    End If

End Sub

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为什么使用jquery标记？也许jquery可以帮助显示行id。

Protected Sub Grid_RowCommand(sender As Object, e As GridViewCommandEventArgs)

    If e.CommandName = "Select" Then
        Dim LevelID As String = GridResults.DataKeys(e.CommandArgument).Item("LevelID")
        ' Do something with ID here
    End If

End Sub