Stream/DelNode.aspx.cs

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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>
	/// DelNode 的摘要说明。
	/// </summary>
	public partial class DelNode :OI.PageBase
	{
		protected void Page_Load(object sender, System.EventArgs e)
		{
			if(this.IsPostBack)
				return;
			int StreamID=0;
			int NodeID=0;
			try
			{
				StreamID=System.Convert.ToInt32(Request.QueryString["StreamID"]);
				ViewState["type"]=Request.Params ["type"].ToString ();
			}
			catch
			{
				Response.Write("<script language=javascript>\n alert(\"未找到此工作流，请检查地址栏传入的参数是否正确\");\n history.back(); \n</script>");
				Response.End();
			}
			try
			{
				NodeID=System.Convert.ToInt32(Request.QueryString["NodeID"]);
			}
			catch
			{
				Response.Write("<script language=javascript>\n alert(\"未找到工作点，请检查地址栏传入的参数是否正确\");\n history.back(); \n</script>");
				Response.End();
			}
			this.dataBind(StreamID,NodeID);
		}
		private void dataBind(int StreamID,int NodeID)
		{
			OI.Business.Stream oStream=new OI.Business.Stream(StreamID);
			if(oStream.FindNodeById(NodeID)!=null)
			{
				if(oStream.DeleteNode(NodeID))
				{
					Response.Redirect("AddStreamSecond.aspx?type="+ViewState["type"].ToString ()+"&StreamID="+StreamID.ToString());
				}
				else
				{
					Response.Write("<script language=javascript>\n alert(\"删除工作点失败"+oStream.ErrorMessage+"\");\n history.back(); \n</script>");
					Response.End();
				}
			}