Asp.net 从代码隐藏设置GridTemplateColumn DataBinder.Eval（Container.DataItem）的货币

请参见

ASPX

页面上的以下RadGrid代码：

<telerik:GridTemplateColumn DataField="Supplier_Price" Aggregate="Sum" FooterText="Unit Price: " FilterControlAltText="Filter Supplier_Price column" HeaderText="Unit Price" SortExpression="Supplier_Price" UniqueName="Supplier_Price" DataType="System.Double" FooterAggregateFormatString="{0:c}">
    <ItemTemplate>
        <%#DataBinder.Eval(Container.DataItem, "Supplier_Price", "{0:C}")%>
    </ItemTemplate>
    <EditItemTemplate>
        <telerik:RadNumericTextBox runat="server" ID="SupplierPriceRadNumericTextBox" Culture="ar-SA" MinValue="0" MaxValue="9999999999" Text='<%#Bind ("Supplier_Price") %>' Type="Currency" NumberFormat-DecimalSeparator="," NumberFormat-AllowRounding="true" NumberFormat-DecimalDigits="2">
            <NumberFormat DecimalDigits="2" DecimalSeparator="." />
        </telerik:RadNumericTextBox>
    </EditItemTemplate>
</telerik:GridTemplateColumn>

---

现在我的问题是，我需要将上面列中的

{0:C}

的货币区域性从“代码隐藏”更改为

 <telerik:GridNumericColumn DataField="Supplier_Price" Aggregate="Sum" FooterText="Unit Price: " FilterControlAltText="Filter Supplier_Price column" HeaderText="Unit Price" SortExpression="Supplier_Price" UniqueName="Supplier_Price" DataType="System.Double" FooterAggregateFormatString="{0:c}">
 </telerik:GridNumericColumn>

SelectCurrencyDropDownList.SelectedItem.Value==“JPY”

基本上是一个

dropdownlist

，用户在其中选择货币，

OnPreRender

启动，一切正常

protected void SupplierPriceRadGrid_PreRender(object sender, EventArgs e)
    {
        foreach (GridColumn column in SupplierPriceRadGrid.Columns)
        {
            if (SelectCurrencyDropDownList.SelectedItem.Value == "SAR")
            {
                if (column.UniqueName == "Supplier_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "{0:N2} .ر.س";
                    (column as GridNumericColumn).FooterAggregateFormatString = "{0:N2} .ر.س";
                }
                if (column.UniqueName == "Supplier_Total_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "{0:N2} .ر.س";
                    (column as GridNumericColumn).FooterAggregateFormatString = "{0:N2} .ر.س";
                }
            }

            if (SelectCurrencyDropDownList.SelectedItem.Value == "USD")
            {
                if (column.UniqueName == "Supplier_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "$ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "$ {0:N2}";
                }
                if (column.UniqueName == "Supplier_Total_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "$ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "$ {0:N2}";
                }
            }

            if (SelectCurrencyDropDownList.SelectedItem.Value == "EUR")
            {
                if (column.UniqueName == "Supplier_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "€ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "€ {0:N2}";
                }
                if (column.UniqueName == "Supplier_Total_Price")
                {                        
                    (column as GridNumericColumn).DataFormatString = "€ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "€ {0:N2}";
                }
            }

            if (SelectCurrencyDropDownList.SelectedItem.Value == "GBP")
            {
                if (column.UniqueName == "Supplier_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "£ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "£ {0:N2}";
                }
                if (column.UniqueName == "Supplier_Total_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "£ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "£ {0:N2}";
                }
            }

            if (SelectCurrencyDropDownList.SelectedItem.Value == "CNY")
            {
                if (column.UniqueName == "Supplier_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "元 {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "元 {0:N2}";
                }
                if (column.UniqueName == "Supplier_Total_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "元 {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "元 {0:N2}";
                }
            }

            if (SelectCurrencyDropDownList.SelectedItem.Value == "JPY")
            {
                if (column.UniqueName == "Supplier_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "¥ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "¥ {0:N2}";
                }
                if (column.UniqueName == "Supplier_Total_Price")
                {
                    (column as GridNumericColumn).DataFormatString = "¥ {0:N2}";
                    (column as GridNumericColumn).FooterAggregateFormatString = "¥ {0:N2}";
                }
            }
        }
    }