TElXTree: How to display multi-line text for a memo field?

RaymondWK

In the forum article   Another TElXTree bug with UseCustomScrollBar = false, the memo field is displayed on several lines and the Item's rowheight is increased to accommodate it.

How is this done?

Is it possible to have a fixed number of rows displayed or the full number? It would be nice to have these as options.

Does it print multi-line? If so, how?

Thanks.

Raymond

Rafael Maricca (LMD)

>>How is this done?<<
Actually you can specify this feature for each indidual item (see e.g. the designtime editor for item). Example:
ElXTree.Items[0].Multiline := false;
ElXTree.Items[0].WordWrap := false;
ElXTree.Items[0].Height := 50;

RaymondWK

I would like an option to set the number of MaximumLines for each row as a default for new items and be able to alter this quantity for individual items.

Using the Height for this is for the component code, not for developer code.

I tried 

    NewItem.MultiLine       := True;

    NewItem.WordWrap        := False;

    NewItem.Height          := 50; // 3 * NewItem.Height;

and

    NewItem.MultiLine       := False;

    NewItem.WordWrap        := False;

    NewItem.Height          := 50; // 3 * NewItem.Height;

but I do not see more than one line.

AdjustMultiLineHeight := True.

What else needs to be done?

Raymond

Rafael Maricca (LMD)

I am sorry, example was certainly perfectly wrong (copy&paste error):

ElXTree.Items[0].Multiline := true;
ElXTree.Items[0].WordWrap := true;
ElXTree.Items[0].Height := 50;

If you don't enable Wordwap, there will be certainly no lines.

RaymondWK

Also, it would be useful to have a property named like ElXTree.AutoItemHeight : Boolean that the XTree would then, if true, include as many lines as is necessary to display all the lines.

Raymond

RaymondWK

I have set the following for all lines as they are read in from a file.

NewItem.Multiline := true;
NewItem.WordWrap := true;
NewItem.Height := 50;

All rows are wordwrapped and multi-line, but only the first is 3 lines in height. All of the other lines show the tops of the 2nd line, but are still only one line in height.

What can I do to make this work?

Thanks.

Raymond

Rafael Maricca (LMD)

>>What can I do to make this work?<<

Without seeing the effect / parths of the code one can only guess. 

Only issue I can imagine that you don't switch of/prohibit repaints (using the Update) pattern while you are reading in the lines.