小编Dee*_*ini的帖子

我将数组传递给一个函数,该函数将数组转换为XML.但我无法使用像"<"或的特殊字符"&".当我传递这些时,它会给出错误无效的XML文件.

Protected Sub drawgraph(ByRef dt As DataTable, ByVal name As String)
    Try

        Dim n(dt.Columns.Count - 3) As String
        Dim r(dt.Columns.Count - 3) As String

        For i As Integer = 1 To dt.Columns.Count - 2
            ***n(i - 1) = dt.Columns(i).ColumnName.ToString.Replace("<", "&lt;")***

            r(i - 1) = (dt.Rows(0).Item(i))
        Next
        ChartBuilder1.BuildLabel(n)
        ChartBuilder1.BuildValues(r, "Age Profile")

        ChartBuilder1.GenerateGraph()
        ChartBuilder1.Visible = True
    Catch ex As Exception
        lbl_msg.Text = ex.Message
    End Try
End Sub

我更换"<"用"<",但它无法正常工作