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1.启动VS2010 2.创建一个CLR项目如下,在窗体中插入相关若干控件,插入背景,如下图所示: ![]() 3.添加下列引用 ![]() 4.在Form1.h中插入以下代码,详细见代码分析与注释 pragma once
namespace Yincheng { using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System::Data; using namespace System::Drawing; using namespace System::Data::OleDb; using namespace System::Reflection; /// <summary> /// Form1 摘要 /// /// 警告: 如果更改此类的名称,则需要更改 /// 与此类所依赖的所有 .resx 文件关联的托管资源编译器工具的 /// “资源文件名”属性。否则, /// 设计器将不能与此窗体的关联 /// 本地化资源正确交互。 /// </summary> public ref class Form1 : public System::Windows::Forms::Form { public: Form1(void) { InitializeComponent(); // //TODO: 在此处添加构造函数代码 // } protected: /// <summary> /// 清理所有正在使用的资源。 /// </summary> ~Form1() { if (components) { delete components; } } private: System::Data::DataSet^ dataSet1; protected: private: System::Data::OleDb::OleDbCommand^ oleDbCommand1; private: System::Data::OleDb::OleDbConnection^ oleDbConnection1; private: System::Data::OleDb::OleDbCommand^ oleDbSelectCommand1; private: System::Data::OleDb::OleDbCommand^ oleDbInsertCommand1; private: System::Data::OleDb::OleDbCommand^ oleDbUpdateCommand1; private: System::Data::OleDb::OleDbCommand^ oleDbDeleteCommand1; private: System::Data::OleDb::OleDbDataAdapter^ oleDbDataAdapter1; private: System::Windows::Forms::Label^ label1; private: System::Windows::Forms::TextBox^ textBox1; private: System::Windows::Forms::Button^ button1; private: System::Windows::Forms::Button^ button2; private: System::Windows::Forms::DataGridView^ dataGridView1; private: /// <summary> /// 必需的设计器变量。 /// </summary> System::ComponentModel::Container ^components; #pragma region Windows Form Designer generated code /// <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> void InitializeComponent(void) { System::ComponentModel::ComponentResourceManager^ resources = (gcnew System::ComponentModel::ComponentResourceManager(Form1::typeid)); this->dataSet1 = (gcnew System::Data::DataSet()); this->oleDbCommand1 = (gcnew System::Data::OleDb::OleDbCommand()); this->oleDbConnection1 = (gcnew System::Data::OleDb::OleDbConnection()); this->oleDbSelectCommand1 = (gcnew System::Data::OleDb::OleDbCommand()); this->oleDbInsertCommand1 = (gcnew System::Data::OleDb::OleDbCommand()); this->oleDbUpdateCommand1 = (gcnew System::Data::OleDb::OleDbCommand()); this->oleDbDeleteCommand1 = (gcnew System::Data::OleDb::OleDbCommand()); this->oleDbDataAdapter1 = (gcnew System::Data::OleDb::OleDbDataAdapter()); this->label1 = (gcnew System::Windows::Forms::Label()); this->textBox1 = (gcnew System::Windows::Forms::TextBox()); this->button1 = (gcnew System::Windows::Forms::Button()); this->button2 = (gcnew System::Windows::Forms::Button()); this->dataGridView1 = (gcnew System::Windows::Forms::DataGridView()); (cli::safe_cast<System::ComponentModel::ISupportInitialize^ >(this->dataSet1))->BeginInit(); (cli::safe_cast<System::ComponentModel::ISupportInitialize^ >(this->dataGridView1))->BeginInit(); this->SuspendLayout(); // // dataSet1 // this->dataSet1->DataSetName = L"NewDataSet"; // // oleDbDataAdapter1 // this->oleDbDataAdapter1->DeleteCommand = this->oleDbDeleteCommand1; this->oleDbDataAdapter1->InsertCommand = this->oleDbInsertCommand1; this->oleDbDataAdapter1->SelectCommand = this->oleDbSelectCommand1; this->oleDbDataAdapter1->UpdateCommand = this->oleDbUpdateCommand1; // // label1 // this->label1->AutoSize = true; this->label1->ForeColor = System::Drawing::Color::Coral; this->label1->Location = System::Drawing::Point(129, 38); this->label1->Name = L"label1"; this->label1->Size = System::Drawing::Size(83, 12); this->label1->TabIndex = 0; this->label1->Text = L"SQL查询语句:"; // // textBox1 // this->textBox1->Location = System::Drawing::Point(208, 34); this->textBox1->Name = L"textBox1"; this->textBox1->Size = System::Drawing::Size(145, 21); this->textBox1->TabIndex = 1; this->textBox1->Text = L"Select * From 客户"; // // button1 // this->button1->Location = System::Drawing::Point(357, 32); this->button1->Name = L"button1"; this->button1->Size = System::Drawing::Size(75, 23); this->button1->TabIndex = 2; this->button1->Text = L"显示数据"; this->button1->UseVisualStyleBackColor = true; this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click); // // button2 // this->button2->Location = System::Drawing::Point(432, 32); this->button2->Name = L"button2"; this->button2->Size = System::Drawing::Size(80, 23); this->button2->TabIndex = 3; this->button2->Text = L"导出Excel表"; this->button2->UseVisualStyleBackColor = true; this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click); // // dataGridView1 // this->dataGridView1->Anchor = static_cast<System::Windows::Forms::AnchorStyles>((((System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Bottom) | System::Windows::Forms::AnchorStyles::Left) | System::Windows::Forms::AnchorStyles::Right)); this->dataGridView1->ColumnHeadersHeightSizeMode = System::Windows::Forms::DataGridViewColumnHeadersHeightSizeMode::AutoSize; this->dataGridView1->Location = System::Drawing::Point(35, 58); this->dataGridView1->Name = L"dataGridView1"; this->dataGridView1->RowTemplate->Height = 23; this->dataGridView1->Size = System::Drawing::Size(601, 332); this->dataGridView1->TabIndex = 4; // // Form1 // this->AutoScaleDimensions = System::Drawing::SizeF(6, 12); this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font; this->BackColor = System::Drawing::SystemColors::ActiveCaptionText; this->BackgroundImage = (cli::safe_cast<System::Drawing::Image^ >(resources->GetObject(L"$this.BackgroundImage"))); this->ClientSize = System::Drawing::Size(674, 414); this->Controls->Add(this->dataGridView1); this->Controls->Add(this->button2); this->Controls->Add(this->button1); this->Controls->Add(this->textBox1); this->Controls->Add(this->label1); this->Name = L"Form1"; this->StartPosition = System::Windows::Forms::FormStartPosition::CenterScreen; this->Text = L"CSDN技术专家尹成-演示使用自动化导出Excel文件"; (cli::safe_cast<System::ComponentModel::ISupportInitialize^ >(this->dataSet1))->EndInit(); (cli::safe_cast<System::ComponentModel::ISupportInitialize^ >(this->dataGridView1))->EndInit(); this->ResumeLayout(false); this->PerformLayout(); } #pragma endregion //显示数据 private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { try { this->dataSet1 = gcnew DataSet(); if (this->oleDbConnection1->State == ConnectionState::Open) this->oleDbConnection1->Close(); this->oleDbConnection1->ConnectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Application::StartupPath+"\\Yincheng.mdb"; this->oleDbConnection1->Open(); String^ MySQL = this->textBox1->Text; this->oleDbCommand1->CommandText=MySQL; this->oleDbCommand1->Connection=this->oleDbConnection1; this->oleDbDataAdapter1->SelectCommand=this->oleDbCommand1; this->oleDbDataAdapter1->Fill(this->dataSet1); this->dataGridView1->DataSource =this->dataSet1->Tables[0]; } catch (Exception^ MyEx) { MessageBox::Show(MyEx->Message, "信息提示", MessageBoxButtons::OK, MessageBoxIcon::Information); } } //导出Excel表 private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e) { Excel::ApplicationClass^ MyExcel; Excel::Workbooks^ MyWorkBooks; Excel::Workbook^ MyWorkBook; Excel::Worksheet^ MyWorkSheet; Excel::Range^ MyRange; array<System::Object^,2>^ MyData=gcnew array<System::Object^,2>(5000,30); OleDbDataReader^ MyReader; DataColumn^ MyColumn; int Count,i,j; try { MyExcel = gcnew Excel::ApplicationClass(); MyExcel->Visible = true; MyWorkBooks=MyExcel->Workbooks; MyWorkBook=MyWorkBooks->Add(Missing::Value); MyWorkSheet=(Excel::Worksheet^)MyWorkBook->Worksheets[1]; switch(this->dataSet1->Tables[0]->Columns->Count + 64) { case 64: MyRange=MyWorkSheet->Range["A1","A1"]; break; case 65: MyRange=MyWorkSheet->Range["A1","B1"]; break; case 66: MyRange=MyWorkSheet->Range["A1","C1"]; break; case 67: MyRange=MyWorkSheet->Range["A1","D1"]; break; case 68: MyRange=MyWorkSheet->Range["A1","E1"]; break; case 69: MyRange=MyWorkSheet->Range["A1","F1"]; break; case 70: MyRange=MyWorkSheet->Range["A1","G1"]; break; case 71: MyRange=MyWorkSheet->Range["A1","H1"]; break; case 72: MyRange=MyWorkSheet->Range["A1","I1"]; break; case 73: MyRange=MyWorkSheet->Range["A1","J1"]; break; case 74: MyRange=MyWorkSheet->Range["A1","K1"]; break; case 75: MyRange=MyWorkSheet->Range["A1","L1"]; break; case 76: MyRange=MyWorkSheet->Range["A1","M1"]; break; case 77: MyRange=MyWorkSheet->Range["A1","N1"]; break; case 78: MyRange=MyWorkSheet->Range["A1","O1"]; break; case 79: MyRange=MyWorkSheet->Range["A1","P1"]; break; case 80: MyRange=MyWorkSheet->Range["A1","Q1"]; break; case 81: MyRange=MyWorkSheet->Range["A1","R1"]; break; case 82: MyRange=MyWorkSheet->Range["A1","S1"]; break; case 83: MyRange=MyWorkSheet->Range["A1","T1"]; break; case 84: MyRange=MyWorkSheet->Range["A1","U1"]; break; case 85: MyRange=MyWorkSheet->Range["A1","V1"]; break; case 86: MyRange=MyWorkSheet->Range["A1","W1"]; break; case 87: MyRange=MyWorkSheet->Range["A1","X1"]; break; case 88: MyRange=MyWorkSheet->Range["A1","Y1"]; break; case 89: MyRange=MyWorkSheet->Range["A1","Z1"]; break; } MyReader=oleDbCommand1->ExecuteReader(); Count=0; for each(DataColumn^ MyNewColumn in this->dataSet1->Tables[0]->Columns) { MyData[0,Count]=MyNewColumn->ColumnName; Count=Count+1; } //设标题为黑体字 MyWorkSheet->Range[MyWorkSheet->Cells[1,1],MyWorkSheet->Cells[1,Count]]->Font->Name="黑体"; //标题字体加粗 MyWorkSheet->Range[MyWorkSheet->Cells[1,1],MyWorkSheet->Cells[1,Count]]->Font->Bold=true; //设表格边框样式 MyWorkSheet->Range[MyWorkSheet->Cells[1,1],MyWorkSheet->Cells[1,Count]]->Borders->LineStyle=1; j=1; while(MyReader->Read()) { for(i=0;i< MyReader->FieldCount;i++) { MyData[j,i]=MyReader[i]->ToString(); } j++; } MyReader->Close(); MyRange=MyRange->Resize[this->dataSet1->Tables[0]->Rows->Count,this->dataSet1->Tables[0]->Columns->Count]; MyRange->Value2=MyData; MyRange->EntireColumn->AutoFit(); } catch (Exception^ MyEx) { MessageBox::Show(MyEx->Message, "信息提示", MessageBoxButtons::OK, MessageBoxIcon::Information); } } }; } 5.启动调试运行如下: ![]() 点击”导出Excel表“按钮启动Excel,显示如下,其中自动插入了一个程序中的表格及数据: ![]() 成功的演示了使用自动化导出Excel文件的方法,希望读者和前面的用剪贴板导出Excel文件的方法加以区别,实际应用还需读者自行研究揣摩,以实现更为复杂高效的功能。 |









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