prosell.cs

《C#数据库项目案例导航》一书的配套光盘

			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		public void ErrorHandle(System.Exception E)
		{
			MessageBox.Show(E.ToString());
		}

		private void TextEnableControl(bool valid)
		{
			if(valid)
			{
				this.textProSellID.Enabled=true;
				this.textProID.Enabled=true;				
				this.textClientID.Enabled=true;				
				this.combUnit.Enabled=true;
				this.textProNumber.Enabled=true;
				this.textProPrice.Enabled=true;												
				this.dateTimePicker1.Enabled=true;
				this.textPeople.Enabled=true;								
				this.textRemark.Enabled=true;
				
			}
			else
			{
				this.textProSellID.Enabled=false;
				this.textProID.Enabled=false;
				this.textProName.Enabled=false;
				this.textClientID.Enabled=false;
				this.textClientName.Enabled=false;
				this.combUnit.Enabled=false;
				this.textProNumber.Enabled=false;
				this.textProPrice.Enabled=false;												
				this.dateTimePicker1.Enabled=false;
				this.textPeople.Enabled=false;								
				this.textRemark.Enabled=false;
			}
		}

		private void ButtonEnableControl(bool valid)
		{
			if(valid)
			{
				this.btnCancel.Enabled=true;
				this.btnApply.Enabled=true;
			}
			else
			{
				this.btnCancel.Enabled=false;
				this.btnApply.Enabled=false;
			}
		}
						
		private void LoadDataSet()
		{
			DataSetProSell objDataSetTemp=new DataSetProSell();
			try
			{
				this.FillDataSet(objDataSetTemp);

			}
			catch (System.Exception E) 
			{
				// 在此处添加错误处理代码。
				this.ErrorHandle(E);
			}
			try
			{
				this.objDataSetProSell.Clear();
				this.objDataSetProSell.Merge(objDataSetTemp);
			}
			catch(System.Exception E) 
			{
				// 在此处添加错误处理代码。
				this.ErrorHandle(E);
			}
			
		}
		
		private void FillDataSet(DataSetProSell dataset)
		{
			dataset.EnforceConstraints=false;
			try
			{
				this.sqlConnection1.Open();
				this.sqlDataAdapter1.Fill(dataset);
				
			}
			catch(System.Exception E)
			{
				this.ErrorHandle(E);
			}
		
			finally
			{
				dataset.EnforceConstraints=true;
				this.sqlConnection1.Close();
			}
		}

		private void ProSell_Load(object sender, System.EventArgs e)
		{
			this.LoadDataSet();				
			this.TextEnableControl(false);
			this.ButtonEnableControl(false);			
			//SqlCommandBuilder sd=new SqlCommandBuilder(this.sqlDataAdapter1);
		
		}
				

		private void btnAdd_Click(object sender, System.EventArgs e)
		{
			try
			{
				this.BindingContext[this.objDataSetProSell,"ProSell"].AddNew();
			}
			catch(System.Exception E)
			{
				this.ErrorHandle(E);
			}			
			this.TextEnableControl(true);
			this.ButtonEnableControl(true);
		}

		private void btnDelete_Click(object sender, System.EventArgs e)
		{
			if((this.BindingContext[this.objDataSetProSell,"ProSell"].Count>0)&
				(MessageBox.Show("真的要删除此记录吗","确定删除",MessageBoxButtons.OKCancel,MessageBoxIcon.Question).Equals(DialogResult.OK)))
			{
				try
				{
					int currentPosition=this.BindingContext[this.objDataSetProSell,"ProSell"].Position;
					this.objDataSetProSell.ProSell.Rows[currentPosition].Delete();
				}
				catch(System.Exception E)
				{
					this.ErrorHandle(E);
				}				
			}
			else
				return;
		}
		
		private void btnModify_Click(object sender, System.EventArgs e)
		{
			this.TextEnableControl(true);
			this.ButtonEnableControl(true);
		
		}

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

		
		}
		
		public void UpdateDataSet()
		{
			this.BindingContext[this.objDataSetProSell,"ProSell"].EndCurrentEdit();
			DataSetProSell objDataSetTemp=new DataSetProSell();
			objDataSetTemp=(DataSetProSell)(this.objDataSetProSell.GetChanges());
			try
			{
				this.UpdateDataSource(objDataSetTemp);
				this.objDataSetProSell.Merge(objDataSetTemp);
				this.objDataSetProSell.AcceptChanges();
			}
			catch(System.Exception E)
			{
				this.ErrorHandle(E);
			}
			this.dataGrid1.Refresh();
		}
		

		public void UpdateDataSource(DataSetProSell Changerows)
		{
			try
			{
				this.sqlConnection1.Open();				 
				this.sqlDataAdapter1.Update(Changerows);
			}
			catch(System.Exception E)
			{
				this.ErrorHandle(E);
			}
			finally
			{
				this.sqlConnection1.Close();

			}	
		}

		private void btnApply_Click(object sender, System.EventArgs e)
		{
			string proID=this.textProID.Text;
			string clientID=this.textClientID.Text;
			int proNumber=Convert.ToInt16(this.textProNumber.Text);										
			this.textProName.Text=addName.AddProductName(proID);//填充商品名称
			this.textClientName.Text=addName.AddClientName(clientID);
			modifyProStock.MinusProStock(proID,proNumber);//修改商品库存
			try
			{
				this.UpdateDataSet();//更新商品进货数据表
			}
			catch(System.Exception E)
			{
				this.ErrorHandle(E);
			}
			this.TextEnableControl(false);//控制各文本框的可用属性
			this.ButtonEnableControl(false);//控制“取消”和“确定”两个按钮的属性。
		}

		private void btnCancel_Click(object sender, System.EventArgs e)
		{
			try
			{
				this.BindingContext[this.objDataSetProSell,"ProSell"].CancelCurrentEdit();
			}
			catch(System.Exception E)
			{
				this.ErrorHandle(E);
			}			
			this.TextEnableControl(false);
			this.ButtonEnableControl(false);
			
		}

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

	}
}