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📄 bookinfo.h

📁 Visual C++.net数据库开发经典案例
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			this->tBoxBarCodeShow->Text = S"";
			// 
			// label5
			// 
			this->label5->Location = System::Drawing::Point(16, 32);
			this->label5->Name = S"label5";
			this->label5->Size = System::Drawing::Size(56, 11);
			this->label5->TabIndex = 1;
			this->label5->Text = S"条形码";
			// 
			// tBoxBookNameShow
			// 
			this->tBoxBookNameShow->Location = System::Drawing::Point(256, 48);
			this->tBoxBookNameShow->Name = S"tBoxBookNameShow";
			this->tBoxBookNameShow->Size = System::Drawing::Size(232, 21);
			this->tBoxBookNameShow->TabIndex = 6;
			this->tBoxBookNameShow->Text = S"";
			// 
			// label6
			// 
			this->label6->Location = System::Drawing::Point(256, 32);
			this->label6->Name = S"label6";
			this->label6->Size = System::Drawing::Size(56, 11);
			this->label6->TabIndex = 5;
			this->label6->Text = S"书名";
			// 
			// label7
			// 
			this->label7->Location = System::Drawing::Point(136, 32);
			this->label7->Name = S"label7";
			this->label7->Size = System::Drawing::Size(56, 11);
			this->label7->TabIndex = 3;
			this->label7->Text = S"编号";
			// 
			// label29
			// 
			this->label29->Location = System::Drawing::Point(496, 32);
			this->label29->Name = S"label29";
			this->label29->Size = System::Drawing::Size(56, 11);
			this->label29->TabIndex = 8;
			this->label29->Text = S"类型";
			// 
			// cmbBookClass
			// 
			this->cmbBookClass->Location = System::Drawing::Point(496, 48);
			this->cmbBookClass->Name = S"cmbBookClass";
			this->cmbBookClass->Size = System::Drawing::Size(104, 20);
			this->cmbBookClass->TabIndex = 7;
			// 
			// BookInfo
			// 
			this->AutoScaleBaseSize = System::Drawing::Size(6, 14);
			this->ClientSize = System::Drawing::Size(760, 469);
			this->Controls->Add(this->dgrdBooks);
			this->Controls->Add(this->groupBox2);
			this->Controls->Add(this->groupBox1);
			this->Controls->Add(this->toolBar1);
			this->Name = S"BookInfo";
			this->Text = S"图书档案管理";
			this->groupBox1->ResumeLayout(false);
			(__try_cast<System::ComponentModel::ISupportInitialize *  >(this->dgrdBooks))->EndInit();
			this->groupBox2->ResumeLayout(false);
			this->ResumeLayout(false);

		}		
	private:
		//----------------设置控件ReadOnly属性------------------------
		void SetModify(bool isModifiable)
		{
			this->tBoxBarCodeShow->ReadOnly = !isModifiable;
			this->tBoxBookIDShow->ReadOnly = !isModifiable;
			this->tBoxBookNameShow->ReadOnly = !isModifiable;
			this->tBoxWritter->ReadOnly = !isModifiable;
			this->tBoxTranslator->ReadOnly = !isModifiable;
			this->tBoxISBN->ReadOnly = !isModifiable;
			this->tBoxPrice->ReadOnly = !isModifiable;
			this->tBoxPage->ReadOnly = !isModifiable;	
			this->tBoxOperator->ReadOnly = !isModifiable;
			this->tBoxMemo->ReadOnly = !isModifiable;

			this->chkIsUnregister->Enabled = isModifiable;
			
			this->cmbBookClass->Enabled = isModifiable;
			this->cmbPublisher->Enabled = isModifiable;
			this->cmbShell->Enabled = isModifiable;			

			this->btnSearch->Enabled = !isModifiable;

			this->dgrdBooks->ReadOnly = !isModifiable;
		}
		//---------------------设置控件的数据邦定--------------------------
		void SetDataBindings()
		{
			this->tBoxBarCodeShow->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"条形码");
			this->tBoxBookIDShow->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"编号");
			this->tBoxBookNameShow->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"书名");
			this->tBoxWritter->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"作者");
			this->tBoxTranslator->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"译者");
			this->tBoxISBN->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"ISBN");
			this->tBoxPrice->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"价格");
			this->tBoxPage->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"页码");	
			this->tBoxOperator->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"操作员");
			this->tBoxMemo->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"简介");		

			this->chkIsUnregister->DataBindings->Add(S"Checked",this->ds->Tables->Item[S"图书信息"],S"是否注销");
			
			this->cmbBookClass->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"类型");
			this->cmbPublisher->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"出版社");
			this->cmbShell->DataBindings->Add(S"Text",this->ds->Tables->Item[S"图书信息"],S"书架名称");					
		}
		//-----------------------设置表格各列的属性-----------------------
		void DataGridStateControl()
		{

			DataGridTableStyle* ts = new DataGridTableStyle();			
			ts->MappingName = this->ds->Tables->Item[S"图书信息"]->TableName;
			
			DataGridNoActiveCellColumn* aTextColumn;
			ts->AllowSorting = false;
			ts->AlternatingBackColor = Color::LightGray;

			int numCols = this->ds->Tables->Item[S"图书信息"]->Columns->Count;
			for(int i = 0;i < numCols;i++)
			{
				aTextColumn = new DataGridNoActiveCellColumn();
				aTextColumn->get_TextBox()->Enabled = false;
				aTextColumn->MappingName = this->ds->Tables->Item[S"图书信息"]->Columns->Item[i]->ColumnName;
				aTextColumn->HeaderText = this->ds->Tables->Item[S"图书信息"]->Columns->Item[i]->ColumnName;
				aTextColumn->NullText = S"";
				aTextColumn->Format = S"D";
				ts->GridColumnStyles->Add(aTextColumn);
			}

			this->dgrdBooks->TableStyles->Add(ts);
  		 }
		//-----------------------工具栏按钮-----------------------
	private:System::Void toolBar1_ButtonClick(System::Object *  sender, System::Windows::Forms::ToolBarButtonClickEventArgs *  e)
		 {
			 //设置控件属性
			 this->SetModify(false);

			 if(String::Compare(e->Button->ToolTipText,S"首记录") == 0)
			 {
				 this->dgrdBooks->UnSelect(this->cmBook->Position);
				 this->cmBook->Position = 0;
				 this->dgrdBooks->Select(this->cmBook->Position);
				 this->dgrdBooks->CurrentRowIndex = this->cmBook->Position;
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"上一记录") == 0)
			 {
				 if(this->cmBook->Position > 0)
				 {
					 this->dgrdBooks->UnSelect(this->cmBook->Position);
					 this->cmBook->Position--;
					 this->dgrdBooks->Select(this->cmBook->Position);
					 this->dgrdBooks->CurrentRowIndex = this->cmBook->Position;
				 }
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"下一记录") == 0)
			 {
				 if(this->cmBook->Position < this->cmBook->Count)
				 {
					 this->dgrdBooks->UnSelect(this->cmBook->Position);
					 this->cmBook->Position++;
					 this->dgrdBooks->Select(this->cmBook->Position);
					 this->dgrdBooks->CurrentRowIndex = this->cmBook->Position;
				 }
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"尾记录") == 0)
			 {
				 this->dgrdBooks->UnSelect(this->cmBook->Position);
				 this->cmBook->Position = this->cmBook->Count;
				 this->dgrdBooks->Select(this->cmBook->Position);
				 this->dgrdBooks->CurrentRowIndex = this->cmBook->Position;
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"新增") == 0)
			 {
				 this->chkIsUnregister->DataBindings->Clear();

				 this->cmBook->AddNew();				 
				 this->SetModify(true);
				 //设置默认值
				 //设置编号
				 String* tempSQL = S"Select max(编号) 最大编号 from 图书信息";
				 SqlCommand* sqlCmd = new SqlCommand(tempSQL,this->MyDataBase->myConnection);
				 int MaxID = 1;
				 Object* r = sqlCmd->ExecuteScalar();
				 if(r != System::DBNull::Value)
					 MaxID = System::Convert::ToInt32(r) + 1;
				 int length = MaxID.ToString()->Length;
				 switch(length)
				 {
				 case 1:
					 this->tBoxBookIDShow->Text = String::Format(S"000{0}",MaxID.ToString()->Trim());
					 break;
				 case 2:
					 this->tBoxBookIDShow->Text = String::Format(S"00{0}",MaxID.ToString()->Trim());
					 break;
				 case 3:
					 this->tBoxBookIDShow->Text = String::Format(S"0{0}",MaxID.ToString()->Trim());
					 break;
				 case 4:
					 this->tBoxBookIDShow->Text = String::Format(S"{0}",MaxID.ToString()->Trim());
					 break;
				 }
				 //设置类型
				 this->cmbBookClass->SelectedIndex = 0;	
				 this->cmBook->EndCurrentEdit();
				 int row = this->cmBook->Count - 1;
				 this->ds->Tables->Item[S"图书信息"]->Rows->Item[row]->Item[S"是否注销"] = __box(false);
				 
				 this->chkIsUnregister->DataBindings->Add(S"Checked",this->ds->Tables->Item[S"图书信息"],S"是否注销");
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"修改") == 0)
			 {
				 this->SetModify(true);
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"删除") == 0)
			 {
				 System::Windows::Forms::DialogResult r = MessageBox::Show(S"确定删除?",S"删除数据",MessageBoxButtons::OKCancel);
				 if(r == DialogResult::OK)
				 {
					 if(this->cmBook->Count > 0)
						 this->cmBook->RemoveAt(this->cmBook->Position);
					 else
						 MessageBox::Show(S"表格已空,无可删除数据",S"提示");
				 }
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"提交") == 0)
			 {
				 this->cmBook->EndCurrentEdit();
				 this->MyDataBase->UpdateDataBase(this->BookAdapter,this->ds,S"图书信息");
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"取消") == 0)
			 {
				 try
				 {
					 this->cmBook->CancelCurrentEdit();
				 }
				 catch(Exception* e)
				 {
					 MessageBox::Show(e->Message,S"提示");
				 }
			 }
			 else if(String::Compare(e->Button->ToolTipText,S"退出") == 0)
			 {
				 this->Close();
			 }
		 }
		 //按条件查询
private: System::Void btnSearch_Click(System::Object *  sender, System::EventArgs *  e)
		 {
			 String* strBookID = this->tBoxBookID->Text->Trim();
			 String* strBookName = this->tBoxBookName->Text->Trim();
			 String* strBarCode = this->tBoxBarCode->Text->Trim();
			 String* Filter = S"";
			 if(String::Compare(strBookID,String::Empty) != 0)
			 {
				 Filter = String::Format(S"{0} AND (编号 LIKE '%{1}%')",Filter,strBookID);
			 }
			 if(String::Compare(strBookName,String::Empty) != 0)
			 {
				 Filter = String::Format(S"{0} AND (书名 LIKE '%{1}%')",Filter,strBookName);
			 }
			 if(String::Compare(strBarCode,String::Empty) != 0)
			 {
				 Filter = String::Format(S"{0} AND (条形码 LIKE '%{1}%')",Filter,strBarCode);
			 }

			 this->ds->Tables->Item[S"图书信息"]->Clear();

			 if(String::Compare(Filter,String::Empty) != 0)
			 {
				 Filter = Filter->Substring(5,Filter->Length - 5);
				 //查询图书信息				 
				 this->strSQL = String::Format(S"Select * from 图书信息 where {0}",Filter);
				 this->strTableName = S"图书信息";
				 this->MyDataBase->SelectDataBase(this->BookAdapter,this->ds,this->strSQL,this->strTableName);           
			 }
			 else
			 {
				 //查询图书信息
				 this->strSQL = S"Select * from 图书信息";
				 this->strTableName = S"图书信息";
				 this->MyDataBase->SelectDataBase(this->BookAdapter,this->ds,this->strSQL,this->strTableName);            
			 }
		 }

		 //编号不能为空
private: System::Void tBoxBookIDShow_Leave(System::Object *  sender, System::EventArgs *  e)
		 {
			 if(String::Compare(this->tBoxBookIDShow->Text,String::Empty) == 0)
				 {
					 MessageBox::Show(S"编号不能为空",S"提示");
					 this->tBoxBookIDShow->Focus();
				 }
		 }

};
}

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