dviewdataitemcode.aspx.cs

《圣殿祭司的ASP.NET 2.0开发详解——使用C#》光盘内容.包含了书籍所含的源代码.非常经典的一本asp.net2.0的书籍

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 dviewDataItemCode : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
		dviewEmployees.DataBind();	//为了自定义分页数字按钮的绑定
    }

	protected void dviewEmployees_DataBound(object sender, EventArgs e)
	{
		if (!IsPostBack)
		{
			if (dviewEmployees.DataItemCount > 0)
			{
				ListItem myListItem ;
				myListItem= new ListItem("请选择", "0");
				dwnPageIndex.Items.Add(myListItem);

				//依数据源数据条数建立DropDownList中的页码
				for (int i = 1; i <= dviewEmployees.DataItemCount; i++)
				{
					myListItem = new ListItem(i.ToString(), i.ToString());
					dwnPageIndex.Items.Add(myListItem);
				}
			}
		}

		DataRowView drView = (DataRowView)dviewEmployees.DataItem;
		//将英文国家名称转换成中文名称
		switch (drView["Country"].ToString().ToUpper())
		{
			case "USA":
				drView["Country"] = "美国";
				break;
			case "UK":
				drView["Country"] = "英国";
				break;
			case "China":
				drView["Country"] = "中国";
				break;
		}

		//上面将Country由英文替换成中文国家后必须再绑定一次
		dviewEmployees.Rows[4].DataBind();

		AddPagerIndex();

		DetailsViewRow bottomPagerRow = dviewEmployees.BottomPagerRow;

		//动态建立分页按钮
		for (int i = 0; i < dviewEmployees.PageCount; i++)
		{
			LinkButton PageNo = new LinkButton();
			PageNo.Text = Convert.ToString(i + 1);
			PageNo.ID = (PageNo + i.ToString());
			PageNo.CommandArgument = i.ToString();
			PageNo.Click += new EventHandler(PageNo_Click);
			bottomPagerRow.Cells[0].Controls.Add(PageNo);
			Literal blank = new Literal();
			blank.Text = " ";
			bottomPagerRow.Cells[0].Controls.Add(blank);
		}
	}

	//前往选择的页码
	protected void dwnPageIndex_SelectedIndexChanged(object sender, EventArgs e)
	{
		dviewEmployees.PageIndex = dwnPageIndex.SelectedIndex-1;
		AddPagerIndex();
	}

	//建立及取得DetailsView的HeaderRow及HeaderRow
	protected void AddPagerIndex()
	{
		//目的是为了加入Page参考索引条数
		DetailsViewRow headerRow = dviewEmployees.HeaderRow;
		DetailsViewRow bottomPagerRow = dviewEmployees.BottomPagerRow;

		Label txtPagerNo1 = new Label();
		Label txtPagerNo2 = new Label();
		txtPagerNo1.Text = "员工基本资料维护( " + (dviewEmployees.DataItemIndex + 1) + "/" + dviewEmployees.DataItemCount + " )";
		txtPagerNo2.Text = "数据项目索引( " + (dviewEmployees.DataItemIndex + 1) + "/" + dviewEmployees.DataItemCount + ")";
		headerRow.Cells[0].Controls.Add(txtPagerNo1);
		bottomPagerRow.Cells[0].Controls.Add(txtPagerNo2);

		Literal blank = new Literal();
		blank.Text = "<BR/>";
		bottomPagerRow.Cells[0].Controls.Add(blank);

		//读取字段标题及信息内容
		//方法一
		txtMsg1.Text = "<Font Color='Red'>这是Rows.Cell</Font><BR>";
		txtMsg1.Text += headerRow.Cells[0].Text + "<br/>";
		txtMsg1.Text += dviewEmployees.Rows[0].Cells[0].Text + "：" + dviewEmployees.Rows[0].Cells[1].Text + "<br/>";
		txtMsg1.Text += dviewEmployees.Rows[1].Cells[0].Text + "：" + dviewEmployees.Rows[1].Cells[1].Text + "<br/>";
		txtMsg1.Text += dviewEmployees.Rows[2].Cells[0].Text + "：" + dviewEmployees.Rows[2].Cells[1].Text + "<br/>";
		txtMsg1.Text += dviewEmployees.Rows[3].Cells[0].Text + "：" + dviewEmployees.Rows[3].Cells[1].Text + "<br/>";
		txtMsg1.Text += dviewEmployees.Rows[4].Cells[0].Text + "：" + dviewEmployees.Rows[4].Cells[1].Text + "<br/>";

		//方法二
		DataRowView drView = (DataRowView)dviewEmployees.DataItem;
		txtMsg2.Text = "<Font Color='Red'>这是DataRowView</Font><BR>";
		txtMsg2.Text += drView["EmployeeID"].ToString() + "<BR>";
		txtMsg2.Text += drView["LastName"].ToString() + "<BR>";
		txtMsg2.Text += drView["FirstName"].ToString() + "<BR>";
		txtMsg2.Text += drView["City"].ToString() + "<BR>";
		txtMsg2.Text += drView["Country"].ToString() + "<BR>";

	}

	//建立分页按钮事件
	void PageNo_Click(object sender, EventArgs e)
	{
		dviewEmployees.PageIndex = Convert.ToInt16(((LinkButton)sender).CommandArgument);
	}
}