excel读取GridView列不完整显示

Question

我正在通过excel中的GridView数据绑定读取excel文件，但我有600列，但是当excel数据与gridview绑定时，它仅显示250列，如何在gridview中显示整个600列，我正在使用此代码，谢谢。

conStr = String.Format(conStr, FilePath, isHDR);
         OleDbConnection connExcel = new OleDbConnection(conStr);
         OleDbCommand cmdExcel = new OleDbCommand();
         OleDbDataAdapter oda = new OleDbDataAdapter();
         DataTable dt = new DataTable();
         dt.MinimumCapacity = 242433;
         cmdExcel.Connection = connExcel;

         //Get the name of First Sheet
         connExcel.Open();
         DataTable dtExcelSchema;
         dtExcelSchema = connExcel.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
         string SheetName = dtExcelSchema.Rows[0]["TABLE_NAME"].ToString();
         connExcel.Close();

         //Read Data from First Sheet
         connExcel.Open();
         cmdExcel.CommandText = "SELECT * From [" + SheetName + "]";
         oda.SelectCommand = cmdExcel;
         oda.Fill(dt);
         connExcel.Close();

         //Bind Data to GridView
         GridView1.Caption = Path.GetFileName(FilePath);
         GridView1.DataSource = dt;
         GridView1.DataBind();

Answer 1

您使用microsoft.office.interop.excel扩展参考，这里是示例，请看一下http://www.devcurry.com/2009/07/import-excel-data-into-aspnet-gridview_06.html