You can use the BubbleChartSeries.InvisibleMarkLabels property to hide the automatic chart labels that appear inside the data marker (bubble). To hide the first and fourth data maker labels, complete the following:

Select View | Properties Window in the Visual Studio menu.

1. Click the drop-down list at the top of the Properties window and select Panel1_C1BubbleChartExtender.
2. Click on the ellipsis button next to the SeriesList property.

The BubbleChartSeries Collection Editor appears.

3. Click on the ellipsis button next to the InvisibleMarkLabels property.

The Int32 Collection Editor appears.

4. Click Add to add a new member and enter 1 for the Value. This will make the first set of data points in the BubbleChartSeries invisible.
5. Click Add to add another member and enter 4 for the Value. This will make the fourth set of data points in the BubbleChartSeries invisible.
6. Click OK to save and close the editor.
7. Run your project and observe that the chart label values are invisible for the first set of data points and fourth set of data points.

 

Specifying Invisible Mark Labels in Source View

To hide the automatic chart labels that appear inside the data marker (bubble) use the BubbleChartSeries.InvisibleMarkLabels like the following:

<cc1:C1BubbleChartExtender ID="Panel1_C1BubbleChartExtender" runat="server"

            Height="300" TargetControlID="Panel1" Width="400">

            <Animation Duration="500" Easing="EaseOutElastic">

            </Animation>

            <SeriesList>

                <cc1:BubbleChartSeries Label="West" LegendEntry="True"

                    InvisibleMarkLabels="1, 4">

                    <Data>

                        <Y1 DoubleValues="3, 12, 33, 10, 42" />

                        <X>

                            <Values>

                                <cc1:ChartXData DoubleValue="5" />

                                <cc1:ChartXData DoubleValue="14" />

                                <cc1:ChartXData DoubleValue="20" />

                                <cc1:ChartXData DoubleValue="18" />

                                <cc1:ChartXData DoubleValue="22" />

                            </Values>

                        </X>

                        <Y>

                            <Values>

                                <cc1:ChartYData DoubleValue="5500" />

                                <cc1:ChartYData DoubleValue="12200" />

                                <cc1:ChartYData DoubleValue="60000" />

                                <cc1:ChartYData DoubleValue="24400" />

                                <cc1:ChartYData DoubleValue="32000" />

                            </Values>

                        </Y>

                    </Data>

                    <Markers Type="Circle">

                    </Markers>

                </cc1:BubbleChartSeries>

            </SeriesList>

            <Footer Compass="South" Visible="False">

            </Footer>

            <Axis>

                <Y Compass="West" Visible="False">

                    <Labels TextAlign="Center">

                    </Labels>

                    <GridMajor Visible="True">

                    </GridMajor>

                </Y>

            </Axis>

        </cc1:C1BubbleChartExtender>