Re: Merge cell table corruption?

Author

Message

Franco Skrzypczak

Posted: 07/29/2004 12:48:42

Hello Sergey,

Thank you for your feedback. I looked through the code and I managed to

find the problems. They were the following;

1. Entire table color changes when setting cell color.

The function call that I used was SetCellColor(Value: TColor; Row,Col: Integer);

When I call this method the entire table color changed AFTER merging a cells

on the table. I replaced this function with Table.Cells[,].Color and it

fixed the problem.

2. Application exception on exit

If you assign an integer to a tag of a table when the RVE TagsAsPChar = True

and you call RVE.Clear you get an exception. This I fixed by setting TagsAsPChar

= False. This caused the exception when I exited the application because

I cleared the RVE on exit.

3. Pasting HTML

There was a misunderstanding. The problem that I had was the following.

I create a table in RVE. I export the HTML. I open it in IE. I copy the

content from IE (Not the source) and paste it into RVE. This gets treated

as RTF then. It works well but the problem was that if I created and exported

a table with a merged cell then I could not copy and paste the displayed

html in IE back into the RVE. However, after I changed the two items above

the problem doesn't occur anymore. (?)

Once again thanks for your help!

Franco

"Sergey Tkachenko" <svt@trichview.com> wrote:

>> 1.) If I try to set the color of a single cell in a table ALL the cells

>> the table get the same color.

>How do you change cell color?

>table.Color is a color of the whole table.

>table.Cell[r,c].Color is a color of the specific cell.

>> 2.) If I close the application I get an exception in the TRichView

>package.

>Any application or some specific application?

>> 3.) If I export the table in HTML format and open it in a browser, it

>displays

>> correctly. But if I copy this table, it is not possible to paste it into

>> the richview component.

>By default, when you copy a web page from IE, RichViewEdit pastes it as

RTF.

>IE sometimes generates low quality RTF (and event does not generate it for

>web pages with complicated layout).

>You can test it in MS Word - command Edit | Paste Special, select "Rich

Text

>Format". Results should be almost the same as pasting in RichViewEdit.

>Results must be better if pasting in HTML format. Unfortunately, HTML import

>is not supported directly yet.

>HTML can be imported/pasted using freeware thirdparty TRVHTMLImporter

>component (http://www.trichview.com/resources/).

>RichViewActions (http://www.trichview.com/resources/actions/) support it

>> To me it seems like the table item gets corrupted. Maybe I am doing

>something

>> wrong since I am not so familiar with this component set yet.

>> Below are the source used for cell merging.

>The full sequence of operations is below:

>(please note: calls of SetUndoGroupMode(True) and SetUndoGroupMode(False)

>must be strictly paired, they decrement/increment an internal counter)

>var rve: TCustomRichViewEdit;

> item: TCustomRVItemInfo;

> table: TRVTableItemInfo;

> ItemNo, Data: Integer;

>begin

> if RichViewEdit1.GetCurrentItemEx(TRVTableItemInfo, rve, item) then begin

> table := item as TRVTableItemInfo;

> ItemNo := rve.GetItemNo(table);

> rve.BeginItemModify(ItemNo, Data);

> rve.BeginUndoGroup(rvutModifyItem);

> rve.SetUndoGroupMode(True);

> table.MergeSelectedCells(True);

> table.DeleteEmptyRows;

> table.DeleteEmptyCols;

> rve.SetUndoGroupMode(False);

> rve.EndItemModify(ItemNo, Data);

> rve.Change;

> end;

>end;