我正在使用 c# 中的 DataTable 将 Excel 导入到网格视图，但我的问题是它在我的本地系统上工作正常，但它重定向到我的在线服务器上的登录页面，我已经尝试过 Microsoft.Office.Interop.Excel 和 OLEdb 连接. 但问题是一样的。请告诉我这些有什么问题，或者任何人有任何其他功能可以在 GridView 中导入 Excel 数据。
private void processExcel(string filename)
{
filename = Server.MapPath("~/Files/WM-0b23-productsBook.xlsx");
Microsoft.Office.Interop.Excel.Application xlApp;
Microsoft.Office.Interop.Excel.Workbook xlWorkBook;
Microsoft.Office.Interop.Excel.Worksheet xlWorkSheet;
var missing = System.Reflection.Missing.Value;
xlApp = new Microsoft.Office.Interop.Excel.Application();
xlWorkBook = xlApp.Workbooks.Open(filename, false, true, missing, missing, missing, true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, '\t', false, false, 0, false, true, 0);
xlWorkSheet = (Microsoft.Office.Interop.Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
Microsoft.Office.Interop.Excel.Range xlRange = xlWorkSheet.UsedRange;
Array myValues = (Array)xlRange.Cells.Value2;
int vertical = myValues.GetLength(0);
int horizontal = myValues.GetLength(1);
System.Data.DataTable dt = new System.Data.DataTable();
// must start with index = 1
// get header information
for (int i = 1; i <= horizontal; i++)
{
dt.Columns.Add(new DataColumn(myValues.GetValue(1, i).ToString()));
}
// Get the row information
for (int a = 2; a <= vertical; a++)
{
object[] poop = new object[horizontal];
for (int b = 1; b <= horizontal; b++)
{
poop[b - 1] = myValues.GetValue(a, b);
}
DataRow row = dt.NewRow();
row.ItemArray = poop;
dt.Rows.Add(row);
}
// assign table to default data grid view
GridView1.DataSource = dt;
GridView1.DataBind();
xlWorkBook.Close(true, missing, missing);
xlApp.Quit();
releaseObject(xlWorkSheet);
releaseObject(xlWorkBook);
releaseObject(xlApp);
}
private void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Unable to release the Object " + ex.ToString());
}
finally
{
GC.Collect();
}
}