Space width.

[KBou]

I've got a TextBlock wich varies in With and FontSize. I want to fill it completely with spaces. How can I calculate how much spaces I need to fill the entire TextBlock? gr. Kevin

[dan sh]

Do you want to replace all text with spaces? Just get the text length and insert as many spaces.

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[KBou]

"Do you want to replace all text with spaces?" No. The situation is a bit more complex. But lets say the TextBlock is empty and I would want to fill it with spaces. The only data I have is the Width of the TextBlock and the FontSize. If I would know the "width" of a space in the same FontSize I could calculate how many I would need. But how do I calculate the width of a space?

[dan sh]

Graphics.MeasureString can give you size of string in mentioned font. Will that help?

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[KBou]

I sounds like it could work. But how do I use it? I can't make a new instance of it, like Graphics g = new Graphics();, And when I just use Graphics. I don't get MeasureString. Can you help me with this.

[dan sh]

Graphics oGx = this.CreateGraphics(); I still dont understand the requirement to insert spaces.

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[KBou]

Maybe I should have mentioned that I'm creating WPF application and not a WindowsForms application. I have a TextBlock in a ScrollViewer. The ScrollViewer moves it position so you will see another part of the TextBlock. This creates somekind of Marque. At the start I want the text to start off the screen therefor I need the spaces.

[benjymous]

You need to use the Graphics context that you're currently rendering with (e.g. the one that's passed in to the OnPaint method)

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[Pete OHanlon]

You should have: a) Posted this on the WPF forum and b) looked into the FormattedText class to see what methods are available there (hint - take a look at the GetMaxWidths method).

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[KBou]

Thanks. I'll post these thing in the WPF forum the next time. For the Info: I've used the formattedText.WidthIncludingTrailingWhitespace Methode to calculate the width of 1 space.