deletestream.aspx.cs

很不错的公文流转系统

using System; 
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace OI.Stream
{
	/// <summary>
	/// DeleteStream 的摘要说明。
	/// </summary>
	public class DeleteStream : OI.PageBase 
	{
		protected OI.DatabaseOper.DatabaseConnect Dbc =new OI.DatabaseOper.DatabaseConnect (); 
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (Session["userid"]==null)
			{
				Response.Write ("<script>alert('超时,请重新登录');top.location.href='../userpass.aspx';</script>");
				return ;
			}
			if(this.IsPostBack)
				return;
			int StreamID=0;
			try
			{
				StreamID=System.Convert.ToInt32(Request.QueryString["StreamID"]);
				ViewState["type"]=Request.Params["type"].ToString ();
			}
			catch
			{
				Response.Write("<script language=javascript>alert(\"此工作流不存在，请检查地址栏输入是否正确\");window.location.href='streamlist.aspx?type="+ViewState["type"].ToString ()+"'</script>");
				Response.End();
			}
			string sql=" select count(*) from document where (completesign !=1 or currentstepid !=2)  and streamid= "+StreamID;
			if (int.Parse (Dbc.GetValueBySql(sql).ToString()) >0  )
			{
				Response.Write ("<script>alert('此流程正在使用,不能删除!');window.location.href='streamlist.aspx?type="+ViewState["type"].ToString ()+"'</script>");
				return;
			}
			else
			{
				this.del(StreamID);
			}
		}
		private void del(int StreamID)
		{
			OI.Data.Streams oStreams=new OI.Data.Streams();
			OI.Data.Streams.Stream oStream=new OI.Data.Streams.Stream();
			if(!oStream.Search(StreamID))
			{
				Response.Write("<script language=javascript>alert(\"此工作流不存在，请检查地址栏输入是否正确\");window.location.href='streamlist.aspx?type="+ViewState["type"].ToString ()+"'</script>");
				Response.End();
			}
			if(oStreams.DeleteStream(StreamID))
			{		
				//删除工作流文件
				try
				{
					System.IO.File.Delete(OI.Modules.Config.GetSetting("stream")+"/"+oStream.StreamDef);
				}
				catch
				{
				}
				Response.Redirect("StreamList.aspx?type="+ViewState["type"].ToString ());
			}
			else
			{
				Response.Write("<script language=javascript>alert(\"删除该工作流失败\");window.location.href='streamlist.aspx?type="+ViewState["type"].ToString ()+"'</script>");
				Response.End();
			}
		}
		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}