Programmatically Add TextBlocks to ChartTitle?

[Marbry]

Can we programatically add a TextBlock to a ChartTitle?

The reason is to display a multiline title, with a different style applied to each line so that I could display something like,

MAIN TITLE
Sub Title

Where the font size of "Sub Title" is smaller than "MAIN TITLE".  I tried declaring new textblocks separately, then adding them to a charttitle, but it gives me a null object error when creating the textblock like,

TextBlock newBlock1 = new TextBlock(chartName);

[Evgenia]

Hi Marbry,

You can use our Multiline Labels feature to have your title on multi lines. However note that you can't control the formatting of each line separately and you can't assign new TextBlock to the Chart title.

Best wishes,
Evgenia
the Telerik team

[Marbry]

So there's no way to apply separate styles to parts of a title?  The whole thing has to have all the same style attributes?

[Evgenia]

Hi Marbry,

There is no way out-of-the-box to accomplish this. As a possible workaround - you may add a transparent TextBox over the PlotArea on the place where the Title is positioned and set the desired text for the second Title in it. This way you will ve able to style the two titles separately.

Greetings,
Evgenia
the Telerik team

[Jorge Gracia]

Unfortunally the suggested demo does not specify how to make the label split onto multi-lines.

[Petar Marchev]

Hello Jorge,

Just use a new line to separate the text. For instance you can use this:

<TextBlock Text="This is first line.
This is on another line">

 
instead of this:

<TextBlock Text="This will appear as a single line.">

You can achieve this with C# code, too.

this.radChart1.ChartTitle.TextBlock.Text += "first line here" + System.Environment.NewLine + "second line here";

To be able to have different styles applied to each line you can try something like this.

this.radChart1.ChartTitle.TextBlock.Text = "Main Title";
var titleStyleClone = (Telerik.Charting.Styles.StyleTextBlock)(this.radChart1.ChartTitle.TextBlock.Appearance.Clone());
TextBlock textBlockChartTitleSub = new TextBlock(titleStyleClone);
textBlockChartTitleSub.Parent = this.radChart1.ChartTitle;
textBlockChartTitleSub.Text = "another chart title";
textBlockChartTitleSub.Appearance.TextProperties.Color = System.Drawing.Color.Blue;
textBlockChartTitleSub.Appearance.TextProperties.Font = new System.Drawing.Font("Verdana", 10);
textBlockChartTitleSub.Appearance.Position.Y += 30;
this.radChart1.ChartTitle.Add(textBlockChartTitleSub);

Hope this is of help.

Best wishes,
Petar Marchev
the Telerik team