在我的项目中，我正在创建一个 CSV 文件，但我想更改它的设计。请帮我：
Private Sub ExportDataToCSV()
Dim fileName As String = "CheckRegistrationStatus_" & Format(Now, "yyyyMMddhhmms") & ".csv"
HttpContext.Current.Response.Clear()
' Set the response headers to fit our CSV file
HttpContext.Current.Response.ContentType = "text/plain"
HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" & fileName)
Using writer As New System.IO.StreamWriter(HttpContext.Current.Response.OutputStream)
Dim columnHeader As String = String.Empty
For i As Integer = 0 To grd1.Columns.Count - 1
columnHeader += grd1.Columns(i).HeaderText & IIf(i < grd1.Columns.Count - 1, ",", "").ToString()
Next
writer.WriteLine(columnHeader)
'writer.WriteLine(AddCSVHeaderRow()) ' Only if you need custom headers to be added
' Add all the data rows
For Each row As GridViewRow In grd1.Rows
writer.WriteLine(GetCSVLine(row.Cells))
Next
End Using
' End the current response. Otherwise, excel will open with the whole page inside.
HttpContext.Current.Response.End()
End Sub
Private Shared Function GetCSVLine(ByVal cellsToAdd As TableCellCollection) As String
Dim line As String = String.Empty
Dim isFirst As Boolean = True
For Each cell As TableCell In cellsToAdd
If Not isFirst Then
line += ","
End If
isFirst = False
line += """" & Replace(cell.Text, " ", "") & """"
Next
Return line
End Function
正在显示输出，如下图所示。但我想让标题加粗并扩大列宽。请帮我。
