如何在C＃中將Excel文件導入DataGridView

Question

我正在努力將Excel文件導入到DataGridView 。 但是，如何導入具有DataGridView選定行和列的Excel文件？ 我只有將整個excel文件加載到DataGridView ，這是C＃中的新手

我打開對話框文件並搜索excel文件，假設我的數據以C:34,D:34和E:34的一列或包含EmploayeeName的數據開頭，然后選擇前24行並將其加載到我的DataGridView 。

預先感謝您的幫助！ 這是我唯一的東西:(

private void OpenFile_Click(object sender, EventArgs e)
{
    OpenFileDialog fdlg = new OpenFileDialog();
    fdlg.Title = "Select file";
    fdlg.InitialDirectory = @"c:\";
    fdlg.FileName = txtFileName.Text;
    fdlg.Filter = "Excel Sheet(*.xlsx)|*.xlsx|All Files(*.*)|*.*";
    fdlg.FilterIndex = 1;
    fdlg.RestoreDirectory = true;
    if (fdlg.ShowDialog() == DialogResult.OK)
    {
        path = textBox1.Text;
        txtFileName.Text = fdlg.FileName;

        Application.DoEvents();
    }
}

private void LoadExcel_Click(object sender, EventArgs e)
{
    System.Data.OleDb.OleDbConnection MyConnection;
    System.Data.DataSet DtSet;
    System.Data.OleDb.OleDbDataAdapter MyCommand;
    MyConnection = new System.Data.OleDb.OleDbConnection(@"provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\csharp.net-informations.xls';Extended Properties=Excel 8.0;");
    MyCommand = new System.Data.OleDb.OleDbDataAdapter("select * from [Sheet1$]", MyConnection);
    MyCommand.TableMappings.Add("Table", "Net-informations.com");
    DtSet = new System.Data.DataSet();
    MyCommand.Fill(DtSet);
    dgrdReciver.DataSource = DtSet.Tables[0];
    MyConnection.Close();
}

Answer 1

好吧，我將從獲取文件的路徑開始，然后使用如下所示的文件流：

string path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), file.Name);


    using (Stream fileStream = File.OpenWrite(path))
    {

        // do what you want with the file stream.
        sftp.DownloadFile(remoteDirectory + "/" + file.Name, fileStream);



    }

我什至將這些數據放入SQL Server，因此更容易放入數據網格視圖。