扩展 GridView 控件 - 无数据时显示标题列 : C# Version

原文源地址：扩展 GridView 控件 - 无数据时显示标题列 :VB.net Version

此文章，我一看觉得在平时还是比较有用的。所以做一下C# Convert VB.net

(仅针对于新手，需要者浏览)

Page Code

 <gvExtrend:GridViewEmptyHeader ID="gvEmptyHeader" runat="server" AutoGenerateColumns="False"
            EmptyShowHeader="True" EmptyDataText="Empty Data" AllowPaging="True" 
            DataKeyNames="ProductID" DataSourceID="SqlDataSource1">
            <Columns>
                <asp:BoundField DataField="ProductID" HeaderText="ProductID" ReadOnly="True" 
                    SortExpression="ProductID" />
                <asp:BoundField DataField="ProductName" HeaderText="ProductName" 
                    SortExpression="ProductName" />
                <asp:BoundField DataField="SupplierID" HeaderText="SupplierID" 
                    SortExpression="SupplierID" />
            </Columns>
        </gvExtrend:GridViewEmptyHeader>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="Data Source=.\sqlexpress;Initial Catalog=Northwind;Integrated Security=True" 
            ProviderName="System.Data.SqlClient" 
            SelectCommand="SELECT [ProductID], [ProductName], [SupplierID] FROM [Alphabetical list of products] WHERE ([CategoryID] = @CategoryID)">
            <SelectParameters>
                <asp:Parameter DefaultValue="99999" Name="CategoryID" Type="Int32" />
            </SelectParameters>
        </asp:SqlDataSource>

Web.Config 添加注册Tag

<pages>
   <controls>
         <add tagPrefix="gvExtrend" namespace="GridViewExtrend" assembly="GridViewExtrend"/>
   </controls>
</pages>

GridViewExtrend Source

namespace GridViewExtrend