GridView控件修改、删除例子,修改时含有DropDownList控件。
示例运行效果图:
GridViewUp.aspx文件代码:
-
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewUp.aspx.cs" Inherits="gridview_GridViewUp" %>
-
-
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www./TR/xhtml1/DTD/xhtml1-transitional.dtd">
-
<html xmlns="http://www./1999/xhtml">
-
<head runat="server">
-
<title>无标题页</title>
-
</head>
-
<body>
-
<form id="form1" runat="server">
-
<div>
-
<table cellpadding="0" cellspacing="0" border="0" width="80%" style="font-size: 11px">
-
<tr>
-
<td align="center">
-
<asp:GridView ID="GridView1" runat="server" Width="100%" CellPadding="4" ForeColor="#333333"
-
AutoGenerateColumns="False" AllowPaging="True" PageSize="12" OnRowCancelingEdit="GridView1_RowCancelingEdit"
-
OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnRowDeleting="GridView1_RowDeleting"
-
DataKeyNames="id,name" OnPageIndexChanging="GridView1_PageIndexChanging" DataMember="card,price" OnRowDataBound="GridView1_RowDataBound" GridLines="None">
-
<Columns>
-
<asp:BoundField HeaderText="身份证号" DataField="card" Visible=false />
-
<asp:BoundField HeaderText="编号" DataField="id" ReadOnly="True" />
-
<asp:BoundField DataField="name" HeaderText="姓名" ReadOnly="True" />
-
<asp:TemplateField HeaderText="身份证号">
-
<ItemTemplate>
-
<%# Eval("card") %>
-
</ItemTemplate>
-
<EditItemTemplate>
-
<asp:TextBox ID="TBCard" Text='<%# Eval("card") %>' runat="server" Width="140px" />
-
</EditItemTemplate>
-
<ItemStyle Width="150px" />
-
</asp:TemplateField>
-
<asp:TemplateField HeaderText="学历">
-
<ItemTemplate>
-
<%# Eval("description")%>
-
</ItemTemplate>
-
<EditItemTemplate>
-
<asp:HiddenField ID="HDFXueli" runat="server" Value='<%# Eval("xueli") %>' />
-
<asp:DropDownList ID="DDLXueli" runat="server" Width="90px" />
-
</EditItemTemplate>
-
<ItemStyle Width="100px" />
-
</asp:TemplateField>
-
<asp:TemplateField HeaderText="价格">
-
<ItemTemplate>
-
<%# Eval("price") %>
-
</ItemTemplate>
-
<EditItemTemplate>
-
<asp:TextBox ID="TBPrice" Text='<%# Eval("price") %>' runat="server" Width="90px" />
-
</EditItemTemplate>
-
<ItemStyle Width="100px" />
-
</asp:TemplateField>
-
<asp:BoundField HeaderText="建立时间" DataField="createdate" ReadOnly="True" />
-
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" HeaderText="操作" />
-
</Columns>
-
<PagerSettings FirstPageText="" LastPageText="" NextPageText="" PreviousPageText="" />
-
<RowStyle Height="20px" BackColor="#F7F6F3" ForeColor="#333333" />
-
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
-
<EditRowStyle BackColor="#999999" />
-
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
-
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
-
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
-
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
-
</asp:GridView>
-
</td>
-
</tr>
-
</table>
-
</div>
-
</form>
-
</body>
-
</html>
GridViewUp.aspx.cs文件代码:
-
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;
-
using System.Data.SqlClient;
-
-
public partial class gridview_GridViewUp : System.Web.UI.Page
-
{
-
protected void Page_Load(object sender, EventArgs e)
-
{
-
if (!IsPostBack)
-
{
-
GridViewBind();
-
}
-
}
-
-
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
-
{
-
GridView1.PageIndex = e.NewPageIndex;
-
GridViewBind();
-
}
-
-
private void GridViewBind()
-
{
-
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
-
string SqlStr = "SELECT a.*,b.description FROM test01 a,xueli b where a.xueli=b.code and a.id<1000 and a.id>200";
-
DataSet ds = new DataSet();
-
-
try
-
{
-
SqlConnection conn = new SqlConnection(connStr);
-
if (conn.State.ToString() == "Closed") conn.Open();
-
SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
-
da.Fill(ds, "test01");
-
if (conn.State.ToString() == "Open") conn.Close();
-
-
GridView1.DataSource = ds.Tables[0].DefaultView;
-
GridView1.DataBind();
-
}
-
catch (Exception ex)
-
{
-
Response.Write("数据库错误,错误原因:" + ex.Message);
-
Response.End();
-
}
-
}
-
-
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
-
{
-
if (((DropDownList)e.Row.FindControl("DDLXueli")) != null)
-
{
-
DropDownList ddlxueli = (DropDownList)e.Row.FindControl("DDLXueli");
-
-
// 生成 DropDownList 的值,绑定数据
-
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
-
string SqlStr = "SELECT * from xueli";
-
DataSet ds = new DataSet();
-
-
SqlConnection conn = new SqlConnection(connStr);
-
if (conn.State.ToString() == "Closed") conn.Open();
-
SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
-
da.Fill(ds, "xueli");
-
if (conn.State.ToString() == "Open") conn.Close();
-
-
ddlxueli.DataSource = ds.Tables[0].DefaultView;
-
ddlxueli.DataTextField = "description";
-
ddlxueli.DataValueField = "code";
-
ddlxueli.DataBind();
-
//
-
-
// 选中 DropDownList
-
ddlxueli.SelectedValue = ((HiddenField)e.Row.FindControl("HDFXueli")).Value;
-
//
-
}
-
}
-
-
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
-
{
-
GridView1.EditIndex = e.NewEditIndex;
-
GridViewBind();
-
}
-
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
-
{
-
GridView1.EditIndex = -1;
-
GridViewBind();
-
}
-
-
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
-
{
-
string id = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
-
string card = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TBCard")).Text;
-
string xueli = ((DropDownList)GridView1.Rows[e.RowIndex].FindControl("DDLXueli")).SelectedValue;
-
string price = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TBPrice")).Text;
-
-
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
-
string SqlStr = "update test01 set card='" + card + "',xueli='" + xueli + "',price='" + price + "' where id=" + id;
-
-
try
-
{
-
SqlConnection conn = new SqlConnection(connStr);
-
if (conn.State.ToString() == "Closed") conn.Open();
-
SqlCommand comm = new SqlCommand(SqlStr, conn);
-
comm.ExecuteNonQuery();
-
comm.Dispose();
-
if (conn.State.ToString() == "Open") conn.Close();
-
-
GridView1.EditIndex = -1;
-
GridViewBind();
-
}
-
catch (Exception ex)
-
{
-
Response.Write("数据库错误,错误原因:" + ex.Message);
-
Response.End();
-
}
-
}
-
-
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
-
{
-
string id = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
-
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
-
string SqlStr = "delete from test01 where id=" + id;
-
-
try
-
{
-
SqlConnection conn = new SqlConnection(connStr);
-
if (conn.State.ToString() == "Closed") conn.Open();
-
SqlCommand comm = new SqlCommand(SqlStr, conn);
-
comm.ExecuteNonQuery();
-
comm.Dispose();
-
if (conn.State.ToString() == "Open") conn.Close();
-
-
GridView1.EditIndex = -1;
-
GridViewBind();
-
}
-
catch (Exception ex)
-
{
-
Response.Write("数据库错误,错误原因:" + ex.Message);
-
Response.End();
-
}
-
}
-
}
sql server生成表代码:
-
CREATE TABLE [dbo].[test01] (
-
[id] [decimal](18, 0) IDENTITY (1, 1) NOT NULL ,
-
[name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
-
[card] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
-
[xueli] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
-
[price] [decimal](18, 0) NULL ,
-
[createdate] [datetime] NULL
-
) ON [PRIMARY]
-
GO
-
-
ALTER TABLE [dbo].[test01] ADD
-
CONSTRAINT [DF_test01_createdate] DEFAULT (getdate()) FOR [createdate],
-
CONSTRAINT [PK_test01] PRIMARY KEY CLUSTERED
-
(
-
[id]
-
) ON [PRIMARY]
-
GO
-
-
CREATE TABLE [dbo].[xueli](
-
[id] [int] IDENTITY(1,1) NOT NULL,
-
[code] [int] NULL,
-
[description] [nvarchar](50) COLLATE Chinese_PRC_CI_AS NULL,
-
CONSTRAINT [PK_xueli] PRIMARY KEY CLUSTERED
-
(
-
[id] ASC
-
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
-
) ON [PRIMARY]
-
-
xueli表中的数据:
-
id code description
-
1 1 博士
-
2 2 硕士
-
3 3 学士
|