asp.net中使用DatagridView的增删改方法具体实现
发布于 2016-06-22 21:53:31 | 138 次阅读 | 评论: 0 | 来源: 网友投递
ASP.NET
ASP.NET 是.NET FrameWork的一部分，是一项微软公司的技术，是一种使嵌入网页中的脚本可由因特网服务器执行的服务器端脚本技术，它可以在通过HTTP请求文档时再在Web服务器上动态创建它们。 指 Active Server Pages（动态服务器页面） ，运行于 IIS（Internet Information Server 服务，是Windows开发的Web服务器）之中的程序 。
asp.net中使用DatagridView的增删改方法具体实现，需要的朋友可以参考一下
default.aspx 页面：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="GPS_Web.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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<!--GridView中必须写的几个事件：onrowediting、onrowupdating、onrowcancelingedit、onrowdeleting--->
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
onpageindexchanging="GridView1_PageIndexChanging" onrowcancelingedit="GridView1_RowCancelingEdit"
onrowediting="GridView1_RowEditing" onrowupdating="GridView1_RowUpdating"
onrowdeleting="GridView1_RowDeleting"
onselectedindexchanging="GridView1_SelectedIndexChanging">
<Columns>
<asp:TemplateField HeaderText="编号" Visible="False">
<ItemTemplate>
<asp:Label ID="lblNum" runat="server" Text='<%# Eval("Num") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="姓名">
<EditItemTemplate>
<asp:TextBox ID="txtTableName" runat="server" Text='<%# Eval("TableName") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("TableName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="地址">
<EditItemTemplate>
<asp:TextBox ID="txtTextName" runat="server" Text='<%# Eval("TextName") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Eval("TextName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField HeaderText="状态" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
</asp:GridView>
<br />
<asp:Button ID="btnAdd" runat="server" onclick="btnAdd_Click" Text="添加" />
<br />
<br />
</div>
</form>
</body>
</html>
default.aspx.cs页面代码：
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using GPS_Web.ywpages.DAL;
using System.Data;
namespace GPS_Web
{
/// <summary>
/// 参考的网址：http://blog.csdn.net/wanglei_samrtfish/article/details/8070480
/// </summary>
public partial class Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
GridViewBind();
}
}
private void GridViewBind()
{
string sql = "select Num,TableName,TextName from dbo.GroupType_Demo";
try
{ //绑定数据源
GridView1.DataSource = SqlHelper.ExecuteDataset(SqlHelper.GetConnSting(), CommandType.Text, sql).Tables[0];
GridView1.DataBind();
}
catch (Exception ex){}
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridViewBind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
GridViewBind();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{ //gridview编辑项索引等于单击行的索引
GridView1.EditIndex = e.NewEditIndex;
GridViewBind();
}
/// <summary>
/// 修改事件
/// </summary>
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{ //取出编号
int Num = Convert.ToInt32(((Label)GridView1.Rows[e.RowIndex].FindControl("lblNum")).Text.ToString());
//获取修改的值的内容
string TableName = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtTableName")).Text;
string TextName = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtTextName")).Text;
//更新记录
string sql = string.Format("update dbo.GroupType_Demo set TableName='{0}',TextName='{1}' where Num={2}",TableName,TextName,Num);
try
{
int i = SqlHelper.ExecuteNonQuery(SqlHelper.GetConnSting(), CommandType.Text, sql);
if (i > 0)
{
ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script language='javascript'>alert('修改成功！')</script>");
}
else
{
ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script language='javascript'>alert('修改失败！')</script>");
}
}
catch (Exception ex)
{
ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script language='javascript'>alert('操作无效！')</script>");
}
GridView1.EditIndex = -1;
GridViewBind();
}
/// <summary>
/// 删除事件
/// </summary>
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
//取出编号
int Num = Convert.ToInt32(((Label)GridView1.Rows[e.RowIndex].FindControl("lblNum")).Text.ToString());
//更新记录
string sql = string.Format("delete dbo.GroupType_Demo where num={0}", Num);
try
{
int i = SqlHelper.ExecuteNonQuery(SqlHelper.GetConnSting(), CommandType.Text, sql);
if (i > 0)
{
ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script language='javascript'>alert('删除成功！')</script>");
}
else
{
ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script language='javascript'>alert('删除失败！')</script>");
}
}
catch (Exception ex)
{
ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script language='javascript'>alert('操作无效！')</script>");
} www.phperz.com
GridView1.EditIndex = -1;
GridViewBind();
}
/// <summary>
/// 添加按钮
/// </summary>
protected void btnAdd_Click(object sender, EventArgs e)
{
Response.Redirect("~/Default_Add.aspx");
}
protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
{
//行号
int i = e.NewSelectedIndex;
GridViewRow row = GridView1.Rows[e.NewSelectedIndex];
btnAdd.Text = "你选中了第" + (i+1) + "行。";
}
}
}
执行后的页面效果：
推荐阅读
最新资讯