方法一：通过Row.add()增加一新行来实现
数据源可以是DateSet或者SqlDataSource或者别的
public void NoRecordBuild(GridView gridView, DataSet ds)
...{
if (ds.Tables[0].Rows.Count == 0)
...{ ds.Tables[0].Rows.Add(ds.Tables[0].NewRow()); gridView.DataSource = ds; gridView.DataBind(); int columnCount = gridView.Rows[0].Cells.Count; gridView.Rows[0].Cells.Clear(); gridView.Rows[0].Cells.Add(new TableCell()); gridView.Rows[0].Cells[0].ColumnSpan = columnCount; gridView.Rows[0].Cells[0].Text = "No Records Found.";
} else ...{ gridView.DataSource = ds; gridView.DataBind(); }
}方法二：通过在编辑EmptyDataTemplate(空模板)实现
<EmptyDataRowStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> <EmptyDataTemplate> <table> <tr> <td style="width: 100px"> 列名1</td> <td style="width: 100px"> 列名2</td> <td style="width: 100px"> 列名3</td> </tr> </table> </EmptyDataTemplate>注意 要让他的样式和headrow一样
方法三：没有数据换一个有一行空数据的数据源
后台：数据源是sqldatasource
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class gridview没数据显示表头_ : System.Web.UI.Page...{ protected void Page_Load(object sender, EventArgs e) ...{ GridView1.DataSource = SqlDataSource1;//最好是在代码里绑定，这样认识的更清晰 SqlDataSource1.SelectCommand = "SELECT [ProductID],[ProductName],[SupplierID] FROM [Alphabetical list of products]"; GridView1.DataBind(); } //没有数据换一个有一行空数据的数据源 public void NoRecordBuild(GridView gridView, SqlDataSource sqlds) ...{ SqlConnection connect = new SqlConnection(sqlds.ConnectionString); connect.Open(); DataTable dt = new DataTable(); System.Data.SqlClient.SqlDataAdapter adpter = new System.Data.SqlClient.SqlDataAdapter(sqlds.SelectCommand, connect); adpter.Fill(dt); DataRow dr = dt.NewRow(); dt.Clear(); dt.Rows.Add(dr); GridView1.DataSourceID = "";//绑定新数据源前先将原来的清理 GridView1.DataSource = dt; GridView1.DataBind(); } protected void SqlDataSource1_Selecting(object sender, SqlDataSourceSelectingEventArgs e) ...{ } protected void Button1_Click(object sender, EventArgs e) ...{ SqlDataSource1.SelectCommand = "SELECT [ProductID],[ProductName],[SupplierID] FROM [Alphabetical list of products] WHERE ([CategoryID] = '0')"; GridView1.DataBind(); if (GridView1.Rows.Count == 0) ...{ NoRecordBuild(GridView1, SqlDataSource1); } }}前台：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="gridview没数据显示表头 .aspx.cs" Inherits="gridview没数据显示表头_" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
OnSelecting="SqlDataSource1_Selecting">
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="gridview没数据显示表头 .aspx.cs" Inherits="gridview没数据显示表头_" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>无标题页</title></head><body> <form id="form1" runat="server"> <div> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" /> <asp:GridView ID="GridView1" runat="server"> </asp:GridView> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" OnSelecting="SqlDataSource1_Selecting"> </asp:SqlDataSource> </div> </form></body></html>