asp.net – 为本地化设置TemplateField HeaderText动态

我有这个有效

<asp:TemplateField HeaderText="Description">
                        <ItemTemplate>
                            <%# Eval("Description") %>
                        </ItemTemplate>
                        <FooterTemplate>
                            <asp:Panel ID="Panel5" runat="server" DefaultButton="EditSubmission">
                                <asp:TextBox runat="server" ID="Submission_DescriptionTxtBox" TextMode="MultiLine"
                                ToolTip='<%# GetById("atforbedringsforslag_description_tooltip") %>'/>

                                </asp:Panel>
                        </FooterTemplate>
                    </asp:TemplateField>

但我想改变

<asp:TemplateField HeaderText="Description">

至

<asp:TemplateField HeaderText='<%# GetById("atforbedringsforslag_description_title") %>'>

但后来我明白了

Databinding expressions are only supported on objects that have a DataBinding event. System.Web.UI.WebControls.TemplateField does not have a DataBinding event.

我该如何设置此字段？我可以找到一些使用OnRowCreated,但随后你访问带有索引号的字段,然后很容易出错或忘记更改索引如果以后添加新字段

编辑我的解决方案：

创建自定义表达式构建器

using System.Web.Compilation;
using System;
using System.CodeDom;

public class LocalizationExpressionBuilder : ExpressionBuilder
{
    public override CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry,object parsedData,ExpressionBuilderContext context)
    {
        CodeExpression[] inputParams = new CodeExpression[] { new CodePrimitiveExpression(entry.Expression.Trim()),new CodeTypeOfExpression(entry.DeclaringType),new CodePrimitiveExpression(entry.PropertyInfo.Name) };

        // Return a CodeMethodInvokeExpression that will invoke the GetRequestedValue method using the specified input parameters 
        return new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(this.GetType()),"GetRequestedValue",inputParams);
    }

    public static object GetRequestedValue(string key,Type targetType,string propertyName)
    {
        // If we reach here,no type mismatch - return the value 
        return GetByText(key);
    }

    //Place holder until database is build
    public static string GetByText(string text)
    {
        return text;
    }
}

在我的web.config中添加了前缀

<system.web>
<compilation debug="true" defaultLanguage="c#" targetFramework="4.0">
  <expressionBuilders>
    <add expressionPrefix="localizeByText" type ="LocalizationExpressionBuilder"/>
  </expressionBuilders>
    </compilation>
</system.web>

我现在可以得到这样的文字了

<asp:TemplateField HeaderText='<%$localizeByText:Some text %>'>