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Private Sub DataGridView1_ColumnAdded(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewColumnEventArgs) Handles DataGridView1.ColumnAdded
For i As Integer = 0 To DataGridView1.RowCount - 1
DataGridView1.Rows(i).Cells(e.Column.Index).Value = (Rnd() * 1000).ToString
Next
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
DataGridView1.Columns.Add("sName", "标头") '添加一列
End Sub