c# - 如果 ButtonFields 文本不被视为 TableCell，我如何访问它？

Question

我正在尝试从 ButtonField(数据绑定(bind))访问文本，但如果我将它作为 TableCell 引用，则无法获取文本。我该怎么做才能获得它的文本？

标记:

<asp:GridView ID="gvClass" runat="server" CssClass="grid" HeaderStyle-Font-Bold="true" Width="100%" OnSelectedIndexChanged="gvClass_SelectedIndexChanged" DataKeyNames="ClassID" AutoGenerateColumns="False" OnPageIndexChanging="gvClass_PageIndexChanging">
    <HeaderStyle Font-Bold="True" />
    <Columns>
        <asp:ButtonField DataTextField="ClassID" HeaderText="Class ID" CommandName="Select" />
        <asp:BoundField DataField="CourseName" HeaderText="Course Name" />
        <asp:BoundField DataField="WarehouseName" DataFormatString="Warehouse" HeaderText="Warehouse" />
        <asp:BoundField DataField="TrainerNames" HeaderText="Trainer(s)" />
        <asp:BoundField DataField="StartTime" HeaderText="Start Time" />
        <asp:BoundField DataField="Duration" HeaderText="Duration" />
        <asp:BoundField DataField="Course Category" HeaderText="Course Category" />
        <asp:BoundField DataField="Comment" HeaderText="Comment" />
    </Columns>
    <EmptyDataTemplate>
        <span class="italic grey">No Record Found</span>
    </EmptyDataTemplate>
</asp:GridView>

代码隐藏:

foreach (GridViewRow gvr in gvClass.Rows)
{
    foreach (TableCell tc in gvr.Cells)
    {
        stringToAppend = tc.Text;
        sb.Append(PRTL_UtilityPackage.FormatHtmlCharacters(stringToAppend) + " \t");
    }
    sb.Append("\\n");
}

foreach(gvr.Cells 中的 TableCell tc)在查看 ButtonField 时出现一个空字符串。

Answer 1

您仍然可以使用 tablecell 方法:

protected void myGridView_DataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // You may have to play with the index of the control
        // I have found that often a GridView will place a 
        // Literal control as Control[0] and the LinkButton
        // as Control[1]. Once you find the index, it won't
        // change.
        LinkButton btn = (LinkButton)e.Row.Cells[0].Controls[1];
        string text = btn.Text;
    }
}