无记录时显示gridview表头，并增加一行显示“没有记录”绑定SqlDataSource控件时

Posted 2020-09-27 杰的记事本——javascript.shop

原文发布时间为：2008-08-04 —— 来源于本人的百度文章 [由搬家工具导入]

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;

public partial class Default2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (GridView1.Rows.Count == 0)

                creatHeader();
        
        }
    }
    protected void DetailsView1_ItemInserted(object sender, DetailsViewInsertedEventArgs e)
    {
         GridView1.DataBind();
        GridView1.PageIndex = GridView1.PageCount - 1;
    }
    protected void GridView1_DataBound(object sender, EventArgs e)
    {

    }
    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
    {
      
    }
    private void creatHeader()
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("id");
        dt.Columns.Add("name");
        dt.Columns.Add("class");
        dt.Rows.Add(dt.NewRow());

GridView1.DataSourceID = "";//如果之前绑定的是SqlDataSource控件,这句必须写上

        GridView1.DataSource = dt;
        GridView1.DataBind();
        int columnCount = dt.Columns.Count;
        GridView1.Rows[0].Cells.Clear();
        GridView1.Rows[0].Cells.Add(new TableCell());
        GridView1.Rows[0].Cells[0].ColumnSpan=columnCount;
        GridView1.Rows[0].Cells[0].Text="没有记录";
        GridView1.Rows[0].Cells[0].Style.Add("text-align","center");
    }

    protected void GridView1_RowDeleted(object sender, GridViewDeletedEventArgs e)
    {
        if (GridView1.Rows.Count ==1)
            creatHeader();
         }
}