選択した行 datagridview をエクスポートして、それぞれのヘッダーで Excel にするプログラムを作成する必要があります。datagridview 全体を Excel にエクスポートしましたが、選択した行だけでエクスポートしたいと考えています。どうすればできますか?
データグリッドビュー全体をExcelにエクスポートするための私のコードは次のとおりです
private void GenerateExcel(DataTable table3, string excelSheetName) {
string fileName = "TestingofDSI";
//string currentDirectorypath = "C:\testingdsi";
string currentDirectorypath = Environment.CurrentDirectory;
string finalFileNameWithPath = string.Empty;
fileName = string.Format("{0}_{1}", fileName, DateTime.Now.ToString("dd-MM-yyyy"));
finalFileNameWithPath = string.Format("{0}\\{1}.xlsx", currentDirectorypath, fileName);
var newFile = new FileInfo(finalFileNameWithPath);
using (var package = new ExcelPackage(newFile))
{
ExcelWorksheet worksheet = package.Workbook.Worksheets.Add(excelSheetName);
if (table != null)
{
worksheet.Cells["A1"].LoadFromDataTable(table3, true, OfficeOpenXml.Table.TableStyles.Medium2);
//worksheet.Cells["A1"].LoadFromDataTable(table, true, TableStyles.None);
/* package.Workbook.Properties.Title = @"This code is part of tutorials available at http://bytesofcode.hubpages.com";
package.Workbook.Properties.Author = "Bytes Of Code";
package.Workbook.Properties.Subject = @"Register here for more http://hubpages.com/_bytes/user/new/";*/
package.Save();
MessageBox.Show(string.Format("File name '{0}' generated successfully.", fileName)
, "File generated successfully!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("please load data from database!");
}
}
}
// データをバインドするためのコード
private void loadButton_Click(object sender, EventArgs e)
{
GetData(" select * from jacksonpc.product;");
dataGridView1.DataSource = bindingSource1;
}
private void GetData(string selectCommand)
{
try
{
// Specify a connection string. Replace the given value with a
// valid connection string for a Northwind SQL Server sample
// database accessible to your system.
String connectionString = "datasource=localhost;port=3306;username=root;password=1234";
// Create a new data adapter based on the specified query.
dataAdapter = new MySqlDataAdapter(selectCommand, connectionString);
// Create a command builder to generate SQL update, insert, and
// delete commands based on selectCommand. These are used to
// update the database.
MySqlCommandBuilder commandBuilder = new MySqlCommandBuilder(dataAdapter);
// Populate a new data table and bind it to the BindingSource.
table = new DataTable();
table.Locale = System.Globalization.CultureInfo.InvariantCulture;
dataAdapter.Fill(table);
bindingSource1.DataSource = table;
/* table2 = new DataTable();
table2.Locale = System.Globalization.CultureInfo.InvariantCulture;
dataAdapter.Fill(table2);
bindingSource2.DataSource = table2;
// Resize the DataGridView columns to fit the newly loaded content.*/
dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader);
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
}