如何访问VB.net中以编程方式创建的datagridview中的单元格？

' 假设你想访问第2行第3列的单元格（索引从0开始）
Dim cellValue As Object = DataGridView1.Rows(1).Cells(2).Value

' 假设你想访问名为"ColumnName"的列的第2行的单元格
Dim cellValue As Object = DataGridView1.Rows(1).Cells("ColumnName").Value

For Each row As DataGridViewRow In DataGridView1.Rows
    For Each cell As DataGridViewCell In row.Cells
        ' 处理每个单元格
        Console.WriteLine(cell.Value)
    Next
Next

If DataGridView1.Rows.Count > rowIndex AndAlso DataGridView1.Columns.Count > colIndex Then
    Dim cellValue As Object = DataGridView1.Rows(rowIndex).Cells(colIndex).Value
End If

If Not IsDBNull(DataGridView1.Rows(rowIndex).Cells(colIndex).Value) Then
    Dim cellValue As Object = DataGridView1.Rows(rowIndex).Cells(colIndex).Value
End If