addrelation.cs

工作流引擎

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

namespace WorkFlow.flow
{
	/// <summary>
	/// AddRelation 的摘要说明。
	/// </summary>
	public class AddRelation : System.Windows.Forms.Form
	{
		private System.Windows.Forms.ComboBox comboBox1;
		private System.Windows.Forms.ComboBox comboBox2;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Button button5;
		private System.Windows.Forms.Button button6;
		private RelationDef am=null;
			private SqlConnection  conn;
		private System.Windows.Forms.ComboBox comboBox3;

		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public AddRelation(RelationDef my)
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();
			this.am=my;
			if(conn==null)
				conn = MainForm.getConnection();
			this.initConf();

			//
			// 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.comboBox1 = new System.Windows.Forms.ComboBox();
			this.comboBox2 = new System.Windows.Forms.ComboBox();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.button5 = new System.Windows.Forms.Button();
			this.button6 = new System.Windows.Forms.Button();
			this.comboBox3 = new System.Windows.Forms.ComboBox();
			this.SuspendLayout();
			// 
			// comboBox1
			// 
			this.comboBox1.Location = new System.Drawing.Point(136, 24);
			this.comboBox1.Name = "comboBox1";
			this.comboBox1.Size = new System.Drawing.Size(121, 20);
			this.comboBox1.TabIndex = 0;
			this.comboBox1.Text = "请选择";
			this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);
			// 
			// comboBox2
			// 
			this.comboBox2.Location = new System.Drawing.Point(320, 24);
			this.comboBox2.Name = "comboBox2";
			this.comboBox2.Size = new System.Drawing.Size(121, 20);
			this.comboBox2.TabIndex = 1;
			this.comboBox2.Text = "请选择";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(24, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(72, 16);
			this.label1.TabIndex = 6;
			this.label1.Text = "定义步骤：";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(264, 24);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(56, 16);
			this.label2.TabIndex = 7;
			this.label2.Text = "与步骤：";
			this.label2.Click += new System.EventHandler(this.label2_Click);
			// 
			// label5
			// 
			this.label5.Location = new System.Drawing.Point(16, 64);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(100, 16);
			this.label5.TabIndex = 14;
			this.label5.Text = "具有强制关系";
			// 
			// button5
			// 
			this.button5.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button5.Location = new System.Drawing.Point(136, 104);
			this.button5.Name = "button5";
			this.button5.TabIndex = 15;
			this.button5.Text = "提交";
			this.button5.Click += new System.EventHandler(this.button5_Click);
			// 
			// button6
			// 
			this.button6.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button6.Location = new System.Drawing.Point(224, 104);
			this.button6.Name = "button6";
			this.button6.TabIndex = 16;
			this.button6.Text = "关闭";
			this.button6.Click += new System.EventHandler(this.button6_Click);
			// 
			// comboBox3
			// 
			this.comboBox3.Location = new System.Drawing.Point(136, 64);
			this.comboBox3.Name = "comboBox3";
			this.comboBox3.Size = new System.Drawing.Size(121, 20);
			this.comboBox3.TabIndex = 17;
			this.comboBox3.Text = "请选择";
			// 
			// AddRelation
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackColor = System.Drawing.Color.AliceBlue;
			this.ClientSize = new System.Drawing.Size(456, 141);
			this.Controls.Add(this.comboBox3);
			this.Controls.Add(this.button6);
			this.Controls.Add(this.button5);
			this.Controls.Add(this.label5);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.comboBox2);
			this.Controls.Add(this.comboBox1);
			this.Name = "AddRelation";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "定义流程约束关系";
			this.ResumeLayout(false);

		}
		#endregion
		private void initConf()
		{
			try
			{
				
				using(SqlCommand cmd = conn.CreateCommand())
				{
					string sql=" select seq, name,userid from t_flowstepmodeldef where flowid = "+this.am.flowid;
					cmd.CommandText = sql;
				
					using(SqlDataReader reader = cmd.ExecuteReader())
					{
						while(reader.Read())
						{
						     string item=reader.GetString(1);
						     this.comboBox1.Items.Add(item);
							this.comboBox2.Items.Add(item);
						}
						this.comboBox1.SelectedIndex=0;
						this.comboBox2.SelectedIndex=0;
						
						
					}
				}
			
				this.comboBox3.Items.Add("本人->本人");
				this.comboBox3.Items.Add("下级->上级");
				this.comboBox3.Items.Add("上级->下级");
				this.comboBox3.Items.Add("下级->最高级");
				

			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return;
			}
		}
		public string getRealName(int autoid)
		{
			try
			{
							
				string select =  "select name from t_user where autoid="+autoid;
				Console.WriteLine(select);
				using(SqlCommand cmd = conn.CreateCommand())
				{
					cmd.CommandText = select;
					using(SqlDataReader reader = cmd.ExecuteReader())
					{
						if(reader.Read())
						{
							return reader.GetString(0);							
						}
						
					}
				}
				return null;
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return null;
			}
		}
		public int getUserid(string name)
		{
			try
			{
							
				string select =  "select autoid from t_user where name='"+name+"'";
				Console.WriteLine(select);
				using(SqlCommand cmd = conn.CreateCommand())
				{
					cmd.CommandText = select;
					using(SqlDataReader reader = cmd.ExecuteReader())
					{
						if(reader.Read())
						{
							return reader.GetInt32(0);						
						}
						
					}
				}
				return 0;
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return 0;
			}
		}
		public int getStepid(string name)
		{
			try
			{
							
				string select =  "select seq from t_flowstepmodeldef where name='"+name+"' and flowid="+this.am.flowid;
				Console.WriteLine(select);
				using(SqlCommand cmd = conn.CreateCommand())
				{
					cmd.CommandText = select;
					using(SqlDataReader reader = cmd.ExecuteReader())
					{
						if(reader.Read())
						{
							return reader.GetInt32(0);						
						}
						
					}
				}
				return 0;
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return 0;
			}
		}



	

		private void button6_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}

		private void button5_Click(object sender, System.EventArgs e)
		{
			if(!this.comboBox1.SelectedItem.ToString().Equals(this.comboBox2.SelectedItem.ToString()))
				{
					string fromstep= this.comboBox1.SelectedItem.ToString();
					string tostep=this.comboBox2.SelectedItem.ToString();
					int fromstepid=this.getStepid(fromstep);
					int tostepid=this.getStepid(tostep);
                 
				if(this.comboBox3.SelectedIndex==0)
				{
					if(fromstepid==0&&tostepid==this.comboBox2.Items.Count)
					{
						int tmp=fromstepid;
                        fromstepid=tostepid;
						tostepid=tmp;
					}
				}

				    int relation=this.comboBox3.SelectedIndex;
					
							if(!this.isRelated(fromstepid,tostepid,relation))
							{
								string sql="insert into t_relation values('"+this.am.flowid+"','"+fromstepid+"','"+tostepid+"','"+relation+"',0)";
								this.excute(sql);
							}
						
					this.am.dgRelation.DataBindings.Clear();
					this.am.setRelation();

					MessageBox.Show("添加流程关系完成");
				}
				else
				{
					MessageBox.Show("相同的步骤间定义强制关系没有意义啊");
				}
			
			
		}
		private bool isRelated(int sfrom,int sto,int relation)
		{
			try
			{
							
				string select =  "select * from t_relation where fromseq='"+sfrom+"' and toseq="+sto+" and relation="+relation+" and flowid="+this.am.flowid;
				Console.WriteLine(select);
				using(SqlCommand cmd = conn.CreateCommand())
				{
					cmd.CommandText = select;
					using(SqlDataReader reader = cmd.ExecuteReader())
					{
						if(reader.Read())
						{
							return true;						
						}
						
					}
				}
				return false;
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return false;
			}
		}
		private bool excute(string sql)
		{
			try
			{
							
				
				using(SqlCommand cmd = conn.CreateCommand())
				{
					cmd.CommandText = sql;
					cmd.ExecuteNonQuery();
				}
				return true;
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.ToString());
				return false;
			}
		}

		private void label2_Click(object sender, System.EventArgs e)
		{
		
		}

		private void comboBox1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			//this.comboBox2.Items.Remove(this.comboBox1.SelectedItem);
            this.comboBox2.Items.Clear();
			for(int i=0;i<this.comboBox1.Items.Count;i++)
			{
                if(i==this.comboBox1.SelectedIndex)continue;
				else this.comboBox2.Items.Add(this.comboBox1.Items[i]);
			}
			this.comboBox2.SelectedIndex=0;

		}
	}
}