OA系统

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C#

QueryInstanceByProperty.aspx.cs：源码内容
							﻿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 OThinker.H3.Portal
{
	/// <summary>
	/// 查询满足条件的流程实例
	/// </summary>
    public partial class QueryInstanceByProperty : PortalPage
	{
		protected System.Web.UI.WebControls.Panel QueryPanel;
		protected void Page_Load(object sender, System.EventArgs e)
		{
            this.OriginatorSelector.SelectUserUrl = PageName_SelectUser;
            this.OriginatorSelector.SelectUserImageUrl = PageName_SelectUserImage;
			// 获得所有流程
			if(!IsPostBack)
			{
                // 验证是否具有管理员权限
                if (!this.UserValidator.ValidateViewReport())
                {
                    this.NotifyMessage(LackOfAuth);
                }
				// 设置默认的搜索时间
				System.DateTime today = System.DateTime.Now;
				System.DateTime tomorrow = today.Add(new System.TimeSpan(1, 0, 0, 0, 0));
				this.txtFromTime.Text = today.ToShortDateString();
				this.txtToTime.Text = tomorrow.ToShortDateString();
				foreach(string instanceState in OThinker.H3.Instance.InstanceStateConvertor.GetAllState())
				{
                    this.lstState.Items.Add(instanceState);
				}
				// 当前引擎内的所有流程类型
				string[] catalogs = OThinker.H3.Server.Engine.WorkflowManager.GetWorkflowPackages();
				// 添加一个空项
				this.lstWorkflowPackage.Items.Add("");
				if(catalogs != null)
				{
					foreach(string processCatalog in catalogs)
					{
						this.lstWorkflowPackage.Items.Add(processCatalog);
					}
				}
				this.lstWorkflowPackage_SelectedIndexChanged(this, null);
			}
		}
		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.btnQuery.Click += new System.Web.UI.ImageClickEventHandler(this.btnQuery_Click);
		}
		#endregion
		protected void lstWorkflowPackage_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			this.lstWorkflowName.Items.Clear();
			string catalog = this.lstWorkflowPackage.SelectedValue;
			this.lstWorkflowName.Items.Add("");
            string[] names = OThinker.H3.Server.Engine.WorkflowManager.GetWorkflowNames(catalog, OThinker.H3.WorkflowTemplate.WorkflowState.Unspecified);
			if(names != null)
			{
				foreach(string name in names)
				{
					this.lstWorkflowName.Items.Add(name);
				}
			}
		}
		private void btnQuery_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			this.Query();
		}
		private void Query()
		{
			string[] originators = null;
            string selectedUser = this.OriginatorSelector.SelectedUser;
            if (selectedUser == null || selectedUser == "")
			{
				originators = null;
			}
			else
			{
                originators = OThinker.H3.Server.Engine.Organization.GetMembers(new string[] { selectedUser });
			}
			OThinker.H3.Instance.InstanceState state = OThinker.H3.Instance.InstanceStateConvertor.ToState(this.lstState.SelectedValue);
			string catalog;
			if(this.lstWorkflowPackage.SelectedValue == null || this.lstWorkflowPackage.SelectedValue == "")
			{
				catalog = null;
			}
			else
			{
				catalog = this.lstWorkflowPackage.SelectedValue.Trim();
			}
			string name;
			if(this.lstWorkflowName.SelectedValue == null || this.lstWorkflowName.SelectedValue == "")
			{
				name = null;
			}
			else
			{
				name = this.lstWorkflowName.SelectedValue.Trim();
			}
			System.DateTime from;
			try
			{
				from = System.DateTime.Parse(this.txtFromTime.Text);
			}
			catch
			{
				from = System.DateTime.MinValue;
			}
			System.DateTime to;
			try
			{
				to = System.DateTime.Parse(this.txtToTime.Text);
			}
			catch
			{
				to = System.DateTime.MaxValue;
			}
			if(
				originators == null && 
				state == OThinker.H3.Instance.InstanceState.Unspecified &&
				catalog == null && 
				name == null &&
				from == System.DateTime.MinValue && 
				to == System.DateTime.MaxValue)
			{
				// 所有的查询条件都没有赋值，不进行查询
			}
			else
			{
				// 查找满足条件的实例
				System.Data.DataTable table = Portal.Query.QueryInstance(
					null, 
					originators, 
					null, 
					OThinker.H3.Instance.InstanceContext.UnspecifiedID, 
					state, 
					catalog, 
					name,
                    OThinker.H3.WorkflowTemplate.WorkflowTemplate.NullWorkflowVersion, 
					from, 
					to,
                    null,
                    OThinker.H3.Instance.PriorityType.Unspecified, 
                    OThinker.Data.BoolMatchValue.Unspecified,
                    OThinker.Data.BoolMatchValue.Unspecified);
				this.InstanceGridView.BindDataGrid(table);
			}
		}
		protected void lnkQuery_Click(object sender, System.EventArgs e)
		{
			this.Query();
		}
	}
}

						