GridView动态添加列的两篇文章
转自：http://blog.csdn.net/liang4571231/archive/2009/03/26/4025944.aspx
public class MyTemplate:ITemplate
{
private string strColumnName;
private DataControlRowType dcrtColumnType;
public MyTemplate(string strColumnName, DataControlRowType dcrtColumnType)
{
this.strColumnName = strColumnName;
this.dcrtColumnType = dcrtColumnType;
}
public void InstantiateIn(Control ctlContainer)
{
switch (dcrtColumnType)
{
case DataControlRowType.Header: //列标题
Literal ltr = new Literal();
ltr.Text = strColumnName;
ctlContainer.Controls.Add(ltr);
break;
case DataControlRowType.DataRow: //模版列内容——加载hyperlink1
HyperLink hl = new HyperLink();
hl.ID = "hyperlink1";
hl.NavigateUrl = "erro.aspx";
hl.Text = "asddddd";
ctlContainer.Controls.Add(hl);
break;
}
}
}
GridView gdview = new GridView();// (GridView)m_map.Page.FindControl("GridView1");
gdview.AutoGenerateColumns = false;
gdview.DataKeyNames = new string[] { "SDE.ST_ZD.ZD_DJH" };
BoundField bf1 = new BoundField();
BoundField bf2 = new BoundField();
TemplateField tf = new TemplateField();
bf1.HeaderText = "地籍号";
bf1.DataField = "SDE.ST_ZD.ZD_DJH";
bf1.ReadOnly = true;
bf2.HeaderText = "权利人名称";
bf2.DataField = "SDE.ST_ZD.QLR_MC";
tf.HeaderText = "模板列测试";
tf.ItemTemplate = new MyTemplate("aaaa", DataControlRowType.DataRow);
CommandField cf = new CommandField();
cf.ButtonType = ButtonType.Button;
cf.ShowCancelButton = true;
cf.ShowEditButton = true;
gdview.Columns.Add(bf1);
gdview.Columns.Add(bf2);
gdview.Columns.Add(tf);
文章二：http://blog.csdn.net/Sandy945/archive/2009/07/31/4397142.aspx
GridView动态添加模板列 这个case 经常会遇到，网上相关资料也不少，
但是关于如何动态为添加在模板列中的控件添加事件却没有。本文就是为解决这种情况而写。
代码如下:
GridViewTemplateDemo.aspx
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewTemplateDemo.aspx.cs" Inherits="GridView_GridViewTemplateDemo" %>
<!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 id="Head1" runat="server">
<title>GridView动态添加模板列的例子</title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
</asp:GridView>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewTemplateDemo.aspx.cs" Inherits="GridView_GridViewTemplateDemo" %>
<!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 id="Head1" runat="server">
<title>GridView动态添加模板列的例子</title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
</asp:GridView>
</form>
</body>
</html>
GridViewTemplateDemo.aspx.cs
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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;
public partial class GridView_GridViewTemplateDemo : System.Web.UI.Page
{
private DataTable getDateTable()
{
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("ID", typeof(Int32)));
dt.Columns.Add(new DataColumn("Name", typeof(String)));
DataRow dr = dt.NewRow();
dr[0] = 1;
dr[1] = "01";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = 2;
dr[1] = "01011";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = 3;
dr[1] = "0120";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = 4;
dr[1] = "01001";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = 5;
dr[1] = "0105";
dt.Rows.Add(dr);
return dt;
}
protected override void OnInit(EventArgs e)
{
TemplateField customField = new TemplateField();
customField.ShowHeader = true;
customField.HeaderTemplate = new GridViewTemplate(DataControlRowType.Header, "动态添加列");
GridViewTemplate gvt = new GridViewTemplate(DataControlRowType.DataRow, "lbtn", "Name");
gvt.eh += new GridViewTemplate.EventHandler(lbtn_Click);
customField.ItemTemplate = gvt;
GridView1.Columns.Add(customField);
base.OnInit(e);
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridView1.DataSource = getDateTable();
GridView1.DataBind();
}
}
public void lbtn_Click(object sender, EventArgs e)
{
ClientScript.RegisterStartupScript(GetType(), "test", "alert('ok');", true);
}
}
public class GridViewTemplate : ITemplate
{
public delegate void EventHandler(object sender, EventArgs e);
public event EventHandler eh;
private DataControlRowType templateType;
private string columnName;
private string controlID;
public GridViewTemplate(DataControlRowType type, string colname)
{
templateType = type;
columnName = colname;
}
public GridViewTemplate(DataControlRowType type,string controlID, string colname)
{
templateType = type;
this.controlID = controlID;
columnName = colname;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (templateType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = columnName;
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
LinkButton lbtn = new LinkButton();
lbtn.ID = this.controlID;
if (eh != null)
{
lbtn.Click += new System.EventHandler(eh);
}
lbtn.DataBinding+=new System.EventHandler(lbtn_DataBinding);
container.Controls.Add(lbtn);
break;
default:
break;
}
}
void lbtn_DataBinding(object sender, EventArgs e)
{
LinkButton lbtn = sender as LinkButton;
if (lbtn != null)
{
GridViewRow container = lbtn.NamingContainer as GridViewRow;
if (container != null)
{
object dataValue = DataBinder.Eval(container.DataItem, columnName);
if (dataValue != DBNull.Value)
{
lbtn.Text = dataValue.ToString();
}
}
}
}
}