双精度数据不会在DataGridView中输出

Question

我有一个DataGridView，我想填充双打值。当值为字符串时，DataGridView填充正常，但现在它在第一列中输出System.Double[]而在任何其他列中都没有输出。我知道转换正在运行，因为我可以将双值打印到控制台。如何以编程方式格式化所有列？ （我不想使用设计师）

我的代码：

Dim cols() as String = {"col1", "col2", "col3"} ' this goes on for 33 cols
Dim currentRow As String()
Dim row() As Double
Dim c As Integer

DataGridView1.Rows.Clear()
DataGridView1.ReadOnly = True
DataGridView1.DefaultCellStyle.Format = "G"
DataGridView1.ColumnCount = 33

For c = 0 To (cols.Length - 1)
     DataGridView1.Columns(c).Name = cols(c)
Next
While Not at EndOfFile ' This line and the next are semi-pseudocode, but it's the same idea
    read/parse line into currentRow
    Dim x As Integer
    For x = 0 To (currentRow.Length - 1)
        ReDim Preserve row(x)
        Double.TryParse(currentRow(x), row(x))
    Next

    With Me.DataGridView1.Rows
        .Add(row)
    End With

输出屏幕截图：

Answer 1

您可以先将行添加到网格中，然后遍历数组以将信息添加到每个单元格。

Dim i as integer = DataGridView1.Rows.Add
For x As Integer = 0 to row.Count - 1
  DataGridView1.Rows(i).Cells(x).Value = row(x)
Next