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>
