從DataGridView導出到Excel工作表時出錯

Question

我將一些數據收集到DataGridView “ dataGridView2”中，並想將其導出到Excel中的工作表中，但是出現了HRESULT錯誤，錯誤代碼為0x800A03EC ，以下是代碼：

private void button2_Click(object sender, EventArgs e)
{
     Microsoft.Office.Interop.Excel.Application app = new.Microsoft.Office.Interop.Excel.Application();
     Microsoft.Office.Interop.Excel.Workbook workbook = app.Workbooks.Open(@path);
     Microsoft.Office.Interop.Excel.Worksheet worksheet = workbook.ActiveSheet;

    //Couunt the number cells in the
    //datagridview asign it to an integers
    //variable
    int rHtcount = dataGridView2.Rows.Count;
    int iii = 0;

    //put each values from each cells of the
    //datagridview into each cell in the
    //destination
    for(; iii < rHtcount; iii++)
    {
         worksheet.Cells[iii + 2, "H"].Value = dataGridView2.Rows[iii].Cells[0].Value;
    }

    app.Visible = true;
    workbook.Close();
}

請幫助我該怎么辦，因為我認為上面的代碼是正確的，而且我不為什么會Exception from HRESULT: 0x800A03EC拋出這樣的錯誤Exception from HRESULT: 0x800A03EC

Answer 1

嘗試替換new.Microsoft.Office.Interop.Excel.Application(); 帶有new Microsoft.Office.Interop.Excel.Application();

HTH ！！！