Eliminating useless whitespace | Infragistics Forums

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Eliminating useless whitespace

David posted over 13 years ago

I've set my column widths the way I want them:

But as you can see, xmDataGrid won't show the entire column heading (State, Vehicle, Driver#) because it has reserved nearly 20 pixels of whitespace on the right side of the column. How can I eliminate the header clipping behavior? I would also like to avoid cell clipping (which is only 4 pixels, so not as bad).

Also, I don't want the left-hand column that contains the little triangle. How do I get rid of it?

And, how can I reduce the row spacing slightly?

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Offline Stefan posted over 13 years ago

Hello,

Thank you for your post. I have been looking through it and I created a sample project for you with a XamDataGrid with the look you want to achieve. Basically I copied the default Style of the LabelPresenter and modify it. In the future I suggest you do so when you want to change the template of some control, but don’t want to lose functionality. Also I commented the SortIndicator control in the Style, so now when you sort a Field it won’t be visible and won’t cut the header. As for the RecordSelector there is a RecordSelectorLocation Property of the XamDataGrid’s FieldLayoutSettings which can be set to None. The default Styles are installed here: C:\Program Files (x86)\Infragistics\NetAdvantage 2011.1\WPF\DefaultStyles\DataPresenter\DataPresenterGeneric_Express.xaml by default. Please let me know if this is what you want to achieve or I misunderstood you in some way.

Looking forward for your reply.

XamDataGRidLabels.zip
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David posted over 13 years ago in reply to Stefan

Thanks! However, is there any way to do it without duplicating the entire template? It's not an ideal solution, as it's a bulky bunch of code to have lying around, and I presume the template overrides the theme, so that I can't switch themes.

It took me some time to find the modified part of the template. The modified part is, I guess, the Margin attribute of the ContentPresenter named "LabelContent". I didn't want to remove the left margin so I changed it to Margin="4 0 0 0". Curiously, the original definition of LabelPresenter in DataPresenterGeneric_Express.xaml does not define a margin, so I wonder how the label got clipped in the first place.

I assume you commented out the "SortIndicator" object, but when I uncommented it, it didn't make any apparent difference. Just out of curiosity, what prevents the sort triangle from appearing? You're right that there isn't quite enough room for the sort indicator in my layout, but the indicator itself is quite small and might be possible to squeeze in (hey, I notice that Windows 7 Explorer places the sort indicator above the header label, in such a way that it occupies no additional space... nice.)

The ControlTemplate says it applies to "igDP:LabelPresenter". Is LabelPresenter the name that Infragistics gives to its column headers? Because the name "LabelPresenter" doesn't sound like a column header, and neither does the description in the documentation, "An element used to display the Label of a Field".

How can the margins of the cells be decreased, including the overall row height?

Update: this template doesn't look quite right: the column divider doesn't extend all the way to the top and bottom of the header area, and neither does hot-tracking rectangles:
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