在后台动态的创建DataGrid控件
用代码创建DataGrid，四个绑定列和一个模板列，支持排序功能.
public DataView CreateDataSource()
{
string strSql;
strSql="Data Source=.;Initial Catalog=Northwind;User Id=sa;Password=;";
SqlConnection conn=new SqlConnection(strSql);
SqlDataAdapter db_sqladaptor=new SqlDataAdapter(sql,conn);
DataSet ds=new DataSet();
db_sqladaptor.Fill(ds,"Employees");
DataView myView=ds.Tables["Employees"].DefaultView;
//myView.Sort=SortExpression;
//Response.Write(sql);
return myView;
}
///<summary>
///排序
///</summary>
///<param name="sender"></param>
///<param name="e"></param>
public void Sort_Grid(object sender,DataGridSortCommandEventArgs e)
{
SortExpression=e.SortExpression.ToString();
Session["SortField"]=SortExpression.Trim();
if(Session["Order"]==null) Session["Order"]="ASC";
Session["Order"]=(Session["Order"].ToString()=="DESC")?"ASC":"DESC";
if(Session["SortField"]==null) Session["SortField"]="FirstName";
sql+="ORDER BY"+Session["SortField"].ToString()+""+Session["Order"].ToString();
mygrid.DataSource=CreateDataSource();
mygrid.DataBind();
}
///<summary>
///创建和设置DataGrid属性,这里的属性设置为固定值,也可以动态设置
///</summary>
///<returns></returns>
public DataGrid MakeGrid()
{
mygrid.CellPadding=2;
mygrid.Attributes.Add("align","center");
mygrid.CellSpacing=0;
mygrid.Width=500;
mygrid.Borderwidth=1;
mygrid.BorderColor=ColorTranslator.FromHtml("Black");
mygrid.AutoGenerateColumns=false;
mygrid.ForeColor=ColorTranslator.FromHtml("Black");
mygrid.Font.Size=9;
mygrid.Font.Name="宋体";
mygrid.AllowSorting=true;
///Sort命令的事件处理器
mygrid.SortCommand += new DataGridSortCommandEventHandler(Sort_Grid);
///设置headerstyle
mygrid.HeaderStyle.BackColor=ColorTranslator.FromHtml("Gold");
mygrid.HeaderStyle.ForeColor=ColorTranslator.FromHtml("Black");
mygrid.HeaderStyle.Font.Name="宋体";
mygrid.HeaderStyle.Font.Size=9;
mygrid.HeaderStyle.Font.Bold=true;
mygrid.HeaderStyle.HorizontalAlign=HorizontalAlign.Center;
//设置alternating Style
mygrid.AlternatingItemStyle.BackColor=ColorTranslator.FromHtml("Silver");
mygrid.AlternatingItemStyle.ForeColor=ColorTranslator.FromHtml("Black");
///设置itemstyle
mygrid.ItemStyle.HorizontalAlign=HorizontalAlign.Left;
///创建绑定列和属性
BoundColumn FirstName=new BoundColumn();
BoundColumn LastName=newn BoundColumn();
BoundColumn HomePhone=nenw BoundColumn();
BoundColumn Title=new BoundColumn();
FirstName.HeaderText="名字";
FirstName.DataField="FirstName";
FirstName.SortExpression="FirstName";
LastName.HeaderText="姓";
LastName.DataField="LastName";
LastName.SortExpression="LastName";
HomePhone.HeaderText="电话";
HomePhone.DataField="HomePhone";
HomePhone.SortExpression="HomePhone";
Title.HeaderText="职务";
Title.DataField="Title";
Title.SortExpression="Title";
mygrid.Columns.AddAt(0,FirstName);
mygrid.Columns.AddAt(1,LastName);
mygrid.Columns.AddAt(2,HomePhone);
mygrid.Columns.AddAt(3,Title);
///设置模板列属性和ItemStyle模板
tm.HeaderText="**删除信息**";
tm.HeaderStyle.HorizontalAlign=HorizontalAlign.Center;
tm.ItemStyle.BackColor=ColorTranslator.FromHtml("#fff778");
tm.ItemStyle.HorizontalAlign=HorizontalAlign.Center;
///列模板从ITemplate继承
tm.ItemTemplate=mycol;
mygrid.Columns.AddAt(4,tm);
///绑定和返回
mygrid.DataSource=CreateDataSource();
mygrid.DataBind();
return mygrid;
}
}
///ColumnTemplate 从ITemplate继承
///"InstantiateIn"定义子控件的属于谁
public class ColumnTemplate:ITemplate
{
public void InstantialeIn(Control container)
{
Label myLabel=new Label();
myLabel.Text="点击删除";
CheckBox mycheckbox=new CheckBox();
container.Controls.Add(myLabel);
container.Controls.Add(mycheckbox);
}
}
}
CreateDataGrid.aspx
<%@Page language="C#" EnableViewState="false" Codebehind="CreateDataGrid.aspx.cs" Inherits="Csover.myDataGrid"%>
<script runat="server">
public void Page_Load(object sender,EventArgs e)
{
CreateDataGridForm.Controls.Add(MakeGrid());
}
</script>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transtional//EN">
<html>
<head>
<title>用代码创建DataGrid</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="Javascript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</head>
<body MS_POSITIONING="GridLayout">
<form id="CreateDataGridForm" method="post" runat="server">
<div align="center"><b>用代码创建DataGrid</b></div>
</form>
</body>
</html>
<script runat="server">
public void Page_Load(object sender,EventArgs e)
{
}
</script>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transtional//EN">
<html>
</html>
CreateDataGrid.aspx.cs
using System;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Drawing;
///<summary>
///CreateDataGrid的摘要说明
///</summary>
namespace Csover
{
public class myDataGrid:Page
{
public String sql="Select FirstName,LastName,HomePhone,Title from Employees";
public DataGrid mygrid=new DataGrid();
public String SoreExpression;
///<summary>
///创建一个模板列和一个列模板
///</summary>
public TemplateColumn tm=new TemplateColumn();
public ColumnTemplate mycol=new ColumnTemplate();
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Drawing;
///<summary>
///CreateDataGrid的摘要说明
///</summary>
namespace Csover
{
