updatedocument.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;
using System.Data.SqlClient;

public partial class Platform_UpdateDocument : System.Web.UI.Page
{
	private int documentID;
	protected void Page_Load(object sender,EventArgs e)
	{	///判断用户是否登录
		UserSessionValue usv = (UserSessionValue)SessionKeyValue.GetUserSession(Session);
		if(usv == null)
		{   ///返回到上一个页面
			Response.Write("<script>history.back()</script>");
			///跳转到登录页面
			Server.Transfer("~/Common/UserLogin.aspx");
			return;
		}
		///获取修改文档的ID值
		if(Request.Params["DocumentID"] != null)
		{
			documentID = Int32.Parse(Request.Params["DocumentID"].ToString());
		}
		if(!Page.IsPostBack)
		{   ///根据文档的ID值获取文档的信息
			if(documentID > 0)
			{
				BindDocumentData(documentID);
			}
		}
		///设置修改按钮的可用性
		btnUpdateAndReturn.Enabled = documentID > 0 ? true : false;
	}

	private void BindDocumentData(int documentID)
	{   ///读取被修改文档的信息
		Document document = new Document();
		SqlDataReader dr = document.GetSingleDocument(documentID);
		if(dr == null)
		{
			return;
		}
		if(dr.Read())
		{   ///显示信息
			tbName.Text = dr["Name"].ToString();
			tbDesn.Text = dr["Desn"].ToString();
		}
		dr.Close();
	}

	protected void btnUpdateAndReturn_Click(object sender,EventArgs e)
	{   ///执行修改操作
		Document document = new Document();
		if(document.UpdateDocument(documentID,
			tbName.Text,tbDesn.Text) > 0)
		{   ///显示提示信息
			SystemOperation.OpenDialog(Response,"修改文档的信息成功……");
			///返回到管理页面
			Server.Transfer("~/Platform/ViewDisk.aspx");
		}
	}
	protected void btnReturn_Click(object sender,EventArgs e)
	{   ///返回到管理页面
		Server.Transfer("~/Platform/ViewDisk.aspx");
	}
}