Custom Label

[Alex]

Hello,

I am using Sfchart, and on numerical axis (vertical one)  I want to add specific labels and the other one I want to hide. For example on the y axis I just want to have 3 labels specify by me. I can't find any solution for that.  

So how should I do that? 

Thank you.

[Parthiban Sundaram]

Hi Alex,  

  

Thanks for using Syncfusion products.  

  

You can achieve this requirement using LabelCreated event of NumericalAxis. Please refer the following code snippet for more details.  

  

Code snippet:  

  

  

           private void YAxis_LabelCreated(object sender, ChartAxis.LabelCreatedEventArgs e)  

        {  

            // Specify the label to show  

            if (e.AxisLabel.Position != 20 && e.AxisLabel.Position != 80 && e.AxisLabel.Position != 150)   

                e.AxisLabel.IsVisible = false;  

        }  

  

  

We have created a simple demo sample to demonstrate this. Please download it from below location.    

  

Sample: http://www.syncfusion.com/downloads/support/forum/132818/ze/ChartSample-736021241  

  

Please let us know, if you need further assistance on this.  

  

Regards,  

Parthiban S   

[Alex]

Thank you for your answer.

Another thing that I want to do is to add a label to specific position, where I have no data.

[Parthiban Sundaram]

Hi Alex, 

  

 

Thanks for the update. 

 

We have achieved your requirement by extending NumericalAxis and overriding GenerateVisibleLabels method to add the labels in specified position. Please refer the NumericalAxisExt files for more details. 

 

Code snippet: 

  

        protected override void GenerateVisibleLabels() 

        { 

            base.GenerateVisibleLabels(); 

            VisibleLabels.Clear(); 

            for (double i = VisibleRange.Start; i < VisibleRange.End; i++) 

            { 

                if(i == 20 || i == 40 || i == 60) // specify the label you need 

                    VisibleLabels.Add(new ChartAxisLabel(i, i.ToString())); 

            } 

        } 

 

 

Please download the sample from following location. 

 

Sample: http://www.syncfusion.com/downloads/support/forum/132818/ze/CustomLabel-95815379  

 

Please let us know, if you need further assistance. 

 

Regards, 

Parthiban S 

[Alex]

Hi Parthiban,

Thanks a lot for the solution! That helped a lot.

Best regards,

Alex

[Parthiban Sundaram]

Hi Alex,

Thanks for the update. We are glad that the given solution has helped to achieve your requirement. Please let us know, if you need further assistance on this.

Regards,
Parthiban S