Is there a way to change the column width and cell heigth from a custom renderer?

[Ronald Brill]

I have implemented a CustomValueRenderer that converts text into a graphic. Works fine so far. But the graphic requires larger cells to be readable.

Therefore i like to change the column width and the cell height (for all cells) at best at the moment the cell renderer for a column is switched to my one.

Any chance to do this from my C# code?

[Andreas Laestadius]

Hi,

This may or may not work, but worth a try.

// Get the parent table plot of your custom renderer

plot = render.GetAncestor<TablePlot>();

// Set the row height

plot.RowHeight = <numeric here>;

Let me know if this works for you!

[Ronald Brill]

Hi Andreas,

thanks for the fast answer.

Maybe i'm wrong but CustomValueRenderer does not provide something like GetAncestor().

And looking at the argumens of RenderCore() seems to also not provide anything in this direction.

[Andreas Laestadius]

Ah, perhaps if you listen events on TableColumnCollection.PropertyNames.ValueRenderers

for changes, you might be able pick up on the addition of a value renderer. You might have to set this up earlier in the doc creation tho.

[Ronald Brill]

Next stupid question....

Wrote a CustomApplicationEventHandler. The handler is triggered and the AddEventHandler method is called when open a new document.

But my method ValueRenderersChanged() is never called.

  public class ContentTypeDetectEventHandler : CustomApplicationEventHandler

  {

    private static ExternalEventManager externalEventManager = new ExternalEventManager();

    protected override void OnApplicationInstanceCreated(AnalysisApplication application)

    {

      base.OnApplicationInstanceCreated(application);

      application.DocumentChanged += (obj, eventArgs) =>

      {

        AnalysisApplication app = obj as AnalysisApplication;

        if (app == null || app.Document == null) { return; }

        externalEventManager.AddEventHandler(

                    ValueRenderersChanged,

                    Trigger.CreatePropertyTrigger(app.Document, TableColumnCollection.PropertyNames.ValueRenderers));

      };

    }

    public void ValueRenderersChanged()

    {

    }