将网格的ASPTemplateField列数据导出到EXCEL PDF和CSV时，数据未显示

如何解决将网格的ASPTemplateField列数据导出到EXCEL PDF和CSV时，数据未显示

实际上我是gridview，因为我使用了一个TemplateField列，它在浏览器中显示数据 当将该网格导出到EXCEl，PDF和CSV时，该列的数据不显示，如何解决此问题。谢谢

在.asp代码中

 <asp:GridView ID="gvmacroManagement" runat="server" Font-Size="Small" Height="40px" Width="100%" AutoGenerateColumns="false"
                                BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" OnPageIndexChanging="gvmacroManagement_PageIndexChanging"
                                BorderWidth="1px" CellPadding="3" AllowPaging="true" PageSize="10" CssClass="mGrid">


                                <Columns>

                                    <asp:BoundField DataField="Id" HeaderText="ID" ItemStyle-Width="50" Visible="false" />
                                    <asp:BoundField DataField="FirstName" HeaderText="Physician Name" ItemStyle-Width="50" />
                                    <asp:BoundField DataField="Hospital" HeaderText="Hospital Name" ItemStyle-Width="50" />
                                    <asp:BoundField DataField="MacroTitle" HeaderText="Macro Title" ItemStyle-Width="50" />
                                    <%--<asp:BoundField DataField="MacroDescription" HeaderText="Macro Description" ItemStyle-Width="50" />--%>

                                    <asp:TemplateField ItemStyle-Width="50"  HeaderText="Macro Description">
                                        <ItemTemplate>
                                            <asp:Label ID="MacroDescription" runat="server"
                                                Text='<%# Limit(Eval("MacroDescription"),30) %>'
                                                ToolTip='<%# Eval("MacroDescription") %>'
                                               >
                                            </asp:Label>
                                        </ItemTemplate>
                                    </asp:TemplateField>

                                    <asp:BoundField DataField="PId" HeaderText="PId" ItemStyle-Width="50" Visible="false" />
                                    <asp:BoundField DataField="CreatedBy" HeaderText="CreatedBy" ItemStyle-Width="50" />
                                    <%--<asp:BoundField DataField="PId" HeaderText="PId" ItemStyle-Width="50" Visible="false" />--%>
                                    <asp:BoundField DataField="HId" HeaderText="HId" ItemStyle-Width="50" Visible="false" />


                                    <asp:TemplateField HeaderText="Action" ItemStyle-Width="90">
                                        <ItemTemplate>
                                            <asp:ImageButton ID="imgMacroEdit" ImageUrl="images/edit.png" runat="server" Width="15" Height="15"
                                                CommandArgument='<%# Eval("Id")+ "," + Eval("FirstName")+ "," + Eval("Hospital")+ "," + Eval("MacroTitle")
                                                             + "," + Eval("macrodescription") +","+Eval("PId")+","+Eval("HId")%>'
                                                OnClick="imgMacroEdit_Click" OnClientClick="return confirm('Are you sure you want to edit this Macro?');" ToolTip="Edit" />


                                            <asp:ImageButton ID="imgMacroDelete" ImageUrl="images/Delete.png" runat="server" Width="15" Height="15"
                                                OnClick="imgMacroDelete_Click" OnClientClick="return confirm('Are you sure you want to delete this Macro?');"
                                                CommandArgument='<%# Eval("Id")%>' ToolTip="Delete" />

                                        </ItemTemplate>
                                    </asp:TemplateField>
                                </Columns>

                                <FooterStyle BackColor="White" ForeColor="#000066" />
                                <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                                <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                                <RowStyle ForeColor="#000066" />
                                <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                                <SortedAscendingCellStyle BackColor="#F1F1F1" />
                                <SortedAscendingHeaderStyle BackColor="#007DBB" />
                                <SortedDescendingCellStyle BackColor="#CAC9C9" />
                                <SortedDescendingHeaderStyle BackColor="#00547E" />

                            </asp:GridView>

HERE是.CS文件代码

  protected string Limit(object desc,int maxLength)
        {
            var MacroDescription = (string)desc;
            if (string.IsNullOrEmpty(MacroDescription)) { return MacroDescription; }
            return MacroDescription.Length <= maxLength ?
            MacroDescription : MacroDescription.Substring(0,maxLength) + " ... ";
        }

解决方法

带有GridView的

TemplateField可以轻松导出并正确显示。 当带有TemplateField列的GridView包含诸如HyperLink，TextBox，Button，LinkButton，RadioButton或CheckBox控件的控件时，会发生问题。发生这种情况时，我们需要转换以删除这些控件，并用Label或Literal控件替换它们。

这是GetCellText的功能。

private static string GetCellText(DataControlFieldCell cell)
{
    if (cell.Controls.Count == 0) {
        return CsvFormatted(cell.Text);
    } else {
        foreach (object current_loopVariable in cell.Controls) {
            current = current_loopVariable;
            if (current is Label) {
                return CsvFormatted((current as Label).Text);
            } else if (current is TextBox) {
                return CsvFormatted((current as TextBox).Text);
            } else if (current is LinkButton) {
                return CsvFormatted((current as LinkButton).Text);
            } else if (current is ImageButton) {
                return CsvFormatted((current as ImageButton).AlternateText);
            } else if (current is HyperLink) {
                return CsvFormatted((current as HyperLink).Text);
            } else if (current is DropDownList) {
                return CsvFormatted((current as DropDownList).SelectedItem.Text);
            } else if (current is CheckBox) {
                return CsvFormatted((current as CheckBox).Checked ? "True" : "False");
            }
        }
    }
    return "";
}