endflow.cs

工作流引擎

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data;
using System.IO;
using WorkFlow.user;
using WorkFlow.util;


namespace WorkFlow.flow
{
	/// <summary>
	/// CloseFlow 的摘要说明。
	/// </summary>
	public class EndFlow : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.ComboBox comboBox1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private SqlConnection  conn=null;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public EndFlow()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();
			this.getConnection();

			setCloseFlow();
			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <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.label1 = new System.Windows.Forms.Label();
			this.comboBox1 = new System.Windows.Forms.ComboBox();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(40, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(72, 16);
			this.label1.TabIndex = 0;
			this.label1.Text = "请选择流程";
			// 
			// comboBox1
			// 
			this.comboBox1.Location = new System.Drawing.Point(112, 24);
			this.comboBox1.Name = "comboBox1";
			this.comboBox1.Size = new System.Drawing.Size(144, 20);
			this.comboBox1.TabIndex = 1;
			// 
			// button1
			// 
			this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.button1.Location = new System.Drawing.Point(48, 56);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(80, 23);
			this.button1.TabIndex = 2;
			this.button1.Text = "终止该流程";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.button2.Location = new System.Drawing.Point(144, 56);
			this.button2.Name = "button2";
			this.button2.TabIndex = 3;
			this.button2.Text = "关闭窗口";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// CloseFlow
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackColor = System.Drawing.Color.AliceBlue;
			this.ClientSize = new System.Drawing.Size(292, 93);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.comboBox1);
			this.Controls.Add(this.label1);
			this.Name = "CloseFlow";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "终止流程";
			this.ResumeLayout(false);

		}
		#endregion

		public void setCloseFlow()
		{
			try
			{
							
				string select =  "select distinct t_flow.title from t_flow,t_flowstep where t_flow.autoid=t_flowstep.projectid and t_flowstep.operatorid="+MainForm.getUserAutoID()+" and t_flow.status=0";
				Console.WriteLine(select);
				using(SqlCommand cmd = conn.CreateCommand())
				{
					cmd.CommandText = select;
					using(SqlDataReader reader = cmd.ExecuteReader())
					{
						while(reader.Read())
						{
							this.comboBox1.Items.Add(reader.GetString(0));						
						}
						
					}
				}
				
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				
			}
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}
		public SqlConnection  getConnection()
		{
			try
			{
				if(conn==null)
					conn = MainForm.getConnection();

				return conn;



			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return null;
			}
		}
		private void button1_Click(object sender, System.EventArgs e)
		{
			string sql="update t_flow set status=2 where title='"+this.comboBox1.SelectedItem.ToString()+"'";
			Console.WriteLine(sql);
			using(SqlCommand cmd = conn.CreateCommand())
			{
				cmd.CommandText = sql;
				cmd.ExecuteNonQuery();
				MessageBox.Show("终止流程成功");
				this.comboBox1.Items.Clear();
				this.setCloseFlow();
			}
		}
	}
}