導入Excel文件

Question

如何導入Excel文件到C＃項目？

Answer 1

確保它位於項目目錄中的正確文件夾中，然後（假設您正在使用Visual Studio）單擊解決方案資源管理器中的顯示所有文件（它是工具頂部的小按鈕之一），然後右鍵單擊現在應顯示的ecel文件，然後單擊添加到項目。

Answer 2

您可以使用Office對象模型來處理Excel工作表。添加對Microsoft.Excel.Interop assembly的引用。您可以使用this參考來處理Excel表格。

Answer 3

注意路徑Excel文件是動態設置的：

// using System.Data.OleDb 
OleDbConnection ExcelConection = null; 
OleDbCommand ExcelCommand = null; 
OleDbDataReader ExcelReader = null; 
OleDbConnectionStringBuilder OleStringBuilder = null; 

try 
{ 
    OleStringBuilder = 
     new OleDbConnectionStringBuilder(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\MyExcel.xls;Extended Properties='Excel 8.0;HDR=Yes;IMEX=1';"); 
    OleStringBuilder.DataSource = MapPath(@"~\App_Datav\MyExcelWorksheet.xls"); 

    ExcelConection = new OleDbConnection(); 
    ExcelConection.ConnectionString = OleStringBuilder.ConnectionString; 

    ExcelCommand = new OleDbCommand(); 
    ExcelCommand.Connection = ExcelConection; 
    ExcelCommand.CommandText = "Select * From [Sheet1$]"; 

    ExcelConection.Open(); 
    ExcelReader = ExcelCommand.ExecuteReader(); 

    GridView1.DataSource = ExcelReader; 
    GridView1.DataBind(); 
} 
catch (Exception Args) 
{ 
    LabelErrorMsg.Text = "Could not open Excel file: " + Args.Message; 
} 
finally 
{ 
    if (ExcelCommand != null) 
     ExcelCommand.Dispose(); 
    if (ExcelReader != null) 
     ExcelReader.Dispose(); 
    if (ExcelConection != null) 
     ExcelConection.Dispose(); 
}