在多个系列 ASP.NET 4 上的数据点处显示 ASP 图表标签

Question

我有一个 ASP 图表 (v4)，它完美地显示了我需要的数据。我希望它在数据点顶部显示标签，但我遇到了一些困难。

这是我的代码，适用于两个系列，但不显示标签：

If MySQLReader.HasRows Then
            Chart1.DataSource = MySQLReader
            Chart1.Series("New Customers Created").XValueMember = "Salesperson"
            Chart1.Series("New Customers Created").YValueMembers = "NCC"
            Chart1.Series("Target").XValueMember = "Salesperson"
            Chart1.Series("Target").YValueMembers = "Target"
            Chart1.DataBind()

            Chart1.Height = 500
            Chart1.Width = 750
            Chart1.ChartAreas("ChartArea1").AxisX.MajorGrid.Enabled = False
            Chart1.ChartAreas("ChartArea1").AxisY.MajorGrid.Enabled = True

            LBLError.Text = ""
        Else
            Chart1.Visible = False
            LBLError.Text = "<div class='error'>Your search did not match any records in the database. Please try again</div>"
        End If
        MySQLReader.Close()
        MyConn.Close()

现在这是我更新的代码，显示标签但仅适用于一个系列。

If MySQLReader.HasRows Then

            Chart1.Series("New Customers Created").Points.DataBind(MySQLReader, "Salesperson", "NCC", "Label=NCC")
            Chart1.Series("Target").Points.DataBind(MySQLReader, "Salesperson", "Target", "Label=Target")
            Chart1.Height = 500
            Chart1.Width = 750
            Chart1.ChartAreas("ChartArea1").AxisX.MajorGrid.Enabled = False
            Chart1.ChartAreas("ChartArea1").AxisY.MajorGrid.Enabled = True

            Chart1.Series("New Customers Created")("LabelStyle") = "Bottom"
            Chart1.Series("New Customers Created").Font = New Drawing.Font("Arial", 8)
            LBLError.Text = ""
        Else
            Chart1.Visible = False
            LBLError.Text = "<div class='error'>Your search did not match any records in the database. Please try again</div>"
        End If
        MySQLReader.Close()
        MyConn.Close()

所以我的问题是，您能帮我在更新的代码中显示这两个系列，并为每个系列添加标签吗？谢谢！

Answer 1

好吧，我明白了。

使用第一批代码就可以了。添加以下 IsValueShownAsLabel="True" 显示标签：

<asp:Series Name="New Customers Created" Legend="New Cust" IsValueShownAsLabel="True">
                    </asp:Series>
                    <asp:Series Name="Target" Legend="New Cust" IsValueShownAsLabel="True">
                    </asp:Series>