动态添加gridview行【转：http://www.cnblogs.com/oec2003/articles/1069796.html】

c#代码:

using  System;
using  System.Data;
using  System.Configuration;
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  _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            BindGrid();
        }
    }

    private DataTable ReadGridView()
    {
        DataTable dt = new DataTable();
        DataRow dr;
        dt.Columns.Add(new DataColumn("ProductID", typeof(string)));
        dt.Columns.Add(new DataColumn("ProductName", typeof(string)));
        dt.Columns.Add(new DataColumn("CategoryID", typeof(string)));
        for (int i = 0; i < this.GridView1.Rows.Count; i++)
        {
            dr = dt.NewRow();
            dr[0] = this.GridView1.Rows[i].Cells[0].Text.Trim();
            dr[1] = this.GridView1.Rows[i].Cells[1].Text.Trim();
            dr[2] = this.GridView1.Rows[i].Cells[2].Text.Trim();
            dt.Rows.Add(dr);
        }
        return dt;
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        DataTable dt = ReadGridView();
        //this.GridView1.DataSource = dt;
        //this.GridView1.DataBind();
        DataRow row = dt.NewRow();
        row.ItemArray = new object[] { "oec2003","oec2003","oec2003" };
        dt.Rows.InsertAt(row, 0);
        dt.AcceptChanges();
        this.GridView1.DataSource = dt;
        this.GridView1.DataBind();
    }

    private void BindGrid()
    {
        string str = ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ToString();
        using (SqlConnection con = new SqlConnection(str))
        {
            SqlCommand cmd = new SqlCommand("SELECT top 1  [ProductID], [ProductName], [CategoryID] FROM [Products]", con);
            SqlDataAdapter sda = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            sda.Fill(ds);
            this.GridView1.DataSource = ds.Tables[0].DefaultView;
            this.GridView1.DataBind();
            sda.Dispose();
            ds.Dispose();
        }

    }
}

html代码

<% @ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default"  %>

<! 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"  AutoGenerateColumns ="False"  DataKeyNames ="ProductID" >
             < Columns >
                 < asp:BoundField  DataField ="ProductID"  HeaderText ="ProductID"  InsertVisible ="False"
                    ReadOnly ="True"  SortExpression ="ProductID"   />
                 < asp:BoundField  DataField ="ProductName"  HeaderText ="ProductName"  SortExpression ="ProductName"   />
                 < asp:BoundField  DataField ="CategoryID"  HeaderText ="CategoryID"  SortExpression ="CategoryID"   />
             </ Columns >
         </ asp:GridView >  
     </ div >
     </ form >
</ body >
</ html >

数据库连接字串

< connectionStrings >
         < add  name ="NorthwindConnectionString"  connectionString ="Data Source=FENGWEI;Initial Catalog=Northwind;User ID=sa;Password=1234"  providerName ="System.Data.SqlClient" />
     </ connectionStrings >

AddRow.rar

转载于:https://www.cnblogs.com/JemBai/archive/2008/09/01/1281250.html