我想在gridview中添加新行，请看我的代码，请帮助我 [英] i want to add new row in a gridview see my code kindly help me
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问题描述
<%@ page language="C#" autoeventwireup="true" codebehind="WebForm1.aspx.cs" inherits="WebApplication25.WebForm1" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<asp:gridview id="GridView1" runat="server" showfooter="true" autogeneratecolumns="false"
datakeynames="PRODUCTID" cellpadding="3" gridlines="Both" onrowediting="gridOnRowEditing"
onrowcancelingedit="gridOnRowCancelingEdit" onrowupdating="gridOnRowUpdating">
<HeaderStyle BackColor="Cyan" ForeColor="White" BorderColor="Red" />
<asp:CommandField ButtonType="Button" ShowCancelButton="true" ShowEditButton="true" HeaderText="Edit & Update" />
<asp:BoundField DataField="PRODUCTID" HeaderText="PRODUCT ID" ReadOnly="true" />
<asp:TemplateField HeaderText="PRODUCT NAME">
<%# Eval("PRODUCTNAME") %>
<asp:TextBox runat="server" ID="txtProduct" Text='<%# Eval("PRODUCTNAME") %>'>
<asp:TemplateField HeaderText="UNIT PRICE">
<%# Eval("UNITPRICE") %>
<asp:TextBox runat="server" ReadOnly="true" ID="txtPrice" Text='<%# Eval("UNITPRICE") %>'>
<asp:Button runat="server" ID="button1" Text="Add New Row" OnClick="button1_click"/>
</form>
</body>
</html>
C＃CODE
C# CODE
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
namespace WebApplication25
{
public partial class WebForm1 : System.Web.UI.Page
{
SqlConnection con = new SqlConnection( "Data Source=localhost;Initial Catalog=practice;Integrated Security=true;" );
protected void Page_Load ( object sender, EventArgs e )
{
if ( !Page.IsPostBack )
{
BindData( );
}
}
protected void BindData ( )
{
SqlDataAdapter sda = new SqlDataAdapter( "Select * From PRODUCTDETAILS order by PRODUCTID asc", con );
DataTable dt = new DataTable( );
sda.Fill( dt );
GridView1.DataSource = dt;
GridView1.DataBind( );
ViewState[ "CurrentTable" ] = dt;
}
protected void gridOnRowEditing ( object sender, GridViewEditEventArgs e )
{
GridView1.EditIndex = e.NewEditIndex;
BindData( );
}
protected void gridOnRowCancelingEdit ( object sender, GridViewCancelEditEventArgs e )
{
GridView1.EditIndex = -1;
BindData( );
}
protected void gridOnRowUpdating ( object sender, GridViewUpdateEventArgs e )
{
GridViewRow row = ( GridViewRow )GridView1.Rows[ e.RowIndex ];
TextBox txtProductName = ( TextBox )row.FindControl( "txtProduct" );
TextBox UNITPRICE = ( TextBox )row.FindControl( "txtPrice" );
string ProductName = txtProductName.Text;
string txtUnitPrice = UNITPRICE.Text;
int ProductID = Convert.ToInt32( GridView1.DataKeys[ e.RowIndex ].Value );
UpdateRecord( ProductID, ProductName, txtUnitPrice );
}
protected void UpdateRecord ( int ProductID, string ProductName, string UnitPrice )
{
try
{
SqlCommand cmd = new SqlCommand( "Update PRODUCTDETAILS set ProductName=@ProductName,UnitPrice=@UnitPrice WHERE ProductID=@ProductID", con );
cmd.Parameters.Add( new SqlParameter( "@ProductID", ProductID ) );
cmd.Parameters.Add( new SqlParameter( "@ProductName", ProductName ) );
cmd.Parameters.Add( new SqlParameter( "@UnitPrice", UnitPrice ) );
con.Open( );
cmd.ExecuteNonQuery( );
con.Close( );
GridView1.EditIndex = -1;
BindData( );
}
catch ( Exception ex )
{
throw ex;
}
}
protected void AddNewRow ( )
{
}
protected void button1_click ( object sender, EventArgs e )
{
AddNewRow( );
}
}
}
推荐答案
http://www.aspsnippets.com/Articles/Add-new-Row-to-GridView -on-Button-Click-in-ASPNet.aspx [ ^ ]
查看此：
从ASP.NET动态添加和删除行GridView [ ^ ]
在Addnewrow中尝试此代码（）
{
SqlConnection con = new SqlConnection（Data Source = localhost; Initial Catalog = practice; Integrated Secu rity = true;）;
数据集ds =新数据集（）;
SqlCommand scom = new SqlCommand（insert query，con）;
con.open（）;
scom.ExecuteNonQuery（）;
con.Close（）;
}
在sqlcommand fire insert查询中。
Try this code in Addnewrow ()
{
SqlConnection con = new SqlConnection( "Data Source=localhost;Initial Catalog=practice;Integrated Security=true;" );
Dataset ds=new dataset ();
SqlCommand scom=new SqlCommand ("insert query", con);
con.open ();
scom.ExecuteNonQuery ();
con.Close();
}
In sqlcommand fire insert query.
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