c# - 选中复选框时如何从 GridView 获取复选框值

Question

我将 GridView 自动填充为

<asp:GridView ID="gvValues" runat="server" 
    OnRowDataBound="gvValues_RowDataBound" 
    OnPageIndexChanging="gvValues_PageIndexChanging" 
    <Columns>           
        <asp:TemplateField HeaderText="#">
            <ItemTemplate>
                <%# gvValues.PageSize*gvValues.PageIndex+ Container.DisplayIndex+1  %> 
                <asp:CheckBox ID="chkProduct" runat="server" CssClass="chkProduct"/>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField  HeaderText="online" meta:resourcekey="Online">
            <ItemTemplate > 
                <asp:CheckBox ID="chkProductonline" runat="server"  OnCheckedChanged ="chkProductonline_CheckedChanged" AutoPostBack="true"/>
            </ItemTemplate>
        </asp:TemplateField>

我需要的是当我单击 chkProductonline 复选框时触发事件并获取 chkProductonline 和 chkProducton 值。我试过这个，但它总是给我 null。

protected void chkProductonline_CheckedChanged(object sender, EventArgs e)
{
    var chkProductonline = FindControl("chkProductonline") as CheckBox;
    // bool ischeck = chkProductonline.Checked;

    var chkProduct = gvValues.FindControl("chkProduct") as CheckBox;
}

我无法循环 GridView。我需要一个一个地做这件事。还有其他方法吗？

Answer 1

你可以试试这个:

protected void chkProductonline_CheckedChanged(object sender, EventArgs e)
{
    CheckBox chkProductonline = sender as CheckBox;
    ...

    CheckBox chkProduct = chkProductionLine.NamingContainer.FindControl("chkProduct") as CheckBox;
    ...
}