Hi Mike,

     Sorry for the late reply but just got a chance to look into the text formatting issue that you raised in your last post.

     As you mentioned we are indeed storing the text in a database with "\line" character for a new line instaed of "\r\n". The reason for this is that we want to display this text in a rich text box in another part of the application.

     So I guess the question is how can I replace the "\line" character with "\r\n" when a user clicks on a cell?

Thanks

Omer

Hi Omer,

Okay, so it is, in fact, that inbox TextBox control that is failing to honor the "\line" character. Have you tried \r\n with the RichTextBox? Does it not support this?

If you don't want to change the data, then there are two approaches you could take here. One would be to use an Editor on the grid column with a DataFilter. The DataFilter allowed you to handle the transition of the data between the owner (the back end), the editor (the grid cell), and the display (the screen). In your case, you would probably want to handle the OwnerToEditor and replace "\line" with "\r\n" and then handle EditorToOwner and do the reverse.

The other option basically the same approach in a different way. You could hide the real grid column and add an unbound column to display to the user. Then you could use events of the grid like InitializeRow to read the data in the real column, replace the line break, and set the value on the unbound column. You would reverse this process in BeforeRowUpdate.

Hi,

Are you referring to the difference in the spacing in between characters? This is the difference between GDI+ and GDI text rendering. When the cell is not in edit mode, the grid draws the text using GDI+, which is what DotNet uses. When the cell goes into edit mode, it's showing an Inbox TextBox control which uses GDI.

You will see the same kind of thing if you compare a TextBox to a Label control in DotNet. The Label uses GDI+ and the TextBox uses GDI.

There's no way to get the TextBox to use GDI+, but you could set up the grid to use GDI by setting the TextRenderingMode. The down side of this is that it has performance implications. GDI tends to be a bit slower in DotNet, so if your grid is particularly large or complex, this could slow down your application a little.

OK. Thanks Mike. I tried your suggestion but it didn't seem to make a difference. I guess we wil have to go with what we have.

By the way are there any plans in the future to change this?

Thanks

Omer

The solution in 

http://ko.infragistics.com/community/forums/t/18063.aspx

helped me.

Hi Mike,

     Sorry for the late reply. I tried your solution and it helped although it is still not 100%. However this may be good enough for our purposes. I also did NOT use the GDI TextRendering Mode. Thanks for all of your help.

     There is now another issue that I was not aware of before and I will post that in a separate thread.

Thanks again

Omer

Okay, I see the issue now. It's a pretty subtle change. The first line of text is okay, but after that the text wrapping has to change due to the decreased available width of the cell.

CellActivation doesn't seem to make any difference here, it's just the VertScrollBar that does it.

There are basically two ways you could deal with this.

1) Make the scrollbar show all the time.

2) Leave a space in the cell where the scrollbar would be.

Personally, I think it will probably make the grid look pretty cluttered to have a scrollbar always display in every cell of the column. And in fact, the grid doesn't expose any way to do this in v8.3. If you had the latest version of the controls, you could use the new UltraControlContainerEditor to embed a TextBox into the cell and leave the scrollbar on all the time. But the UltraControlContainerEditor was not available in v8.3.

Leaving a space would have to be done using a CreationFilter and this could be done in v8.3.This is actually a pretty simple CreationFilter.

        public class MyCreationFilter : IUIElementCreationFilter
        {
            #region IUIElementCreationFilter Members

            void IUIElementCreationFilter.AfterCreateChildElements(UIElement parent)
            {
                if (parent is EditorWithTextUIElement)
                {
                    UltraGridCell cell = parent.GetContext(typeof(UltraGridCell)) as UltraGridCell;
                    if (cell != null && cell.Column.Key == "Column 0")
                    {
                        EditorWithTextDisplayTextUIElement editorWithTextDisplayTextUIElement = parent.GetDescendant(typeof(EditorWithTextDisplayTextUIElement)) as EditorWithTextDisplayTextUIElement;
                        if (editorWithTextDisplayTextUIElement != null)
                        {
                            Rectangle rect = editorWithTextDisplayTextUIElement.Rect;
                            editorWithTextDisplayTextUIElement.Rect = new Rectangle(
                                rect.X,
                                rect.Y,
                                rect.Width - SystemInformation.VerticalScrollBarWidth,
                                rect.Height);
                        }
                    }
                }
            }

            bool IUIElementCreationFilter.BeforeCreateChildElements(UIElement parent)
            {
                return false;
            }

            #endregion
        }

Hi Mike,

     Thanks for your prompt response. I got your app to run by altering the references. The 2 lines of code that you are missing in the ultraGrid1_InitializeLayout function are:

band.Columns[0].CellActivation =

Activation

.ActivateOnly;

band.Columns[0].VertScrollBar =

;

     When you include these then the TextRenderingMode doesn't work as expected since the vertical scrollbar takes up some of the width of the cell. Since the dimensions of the cell change then I guess there is nothing that can be done to maintain the text formatting with and without a scrollbar. This is the issue at the heart of the problem.

Thanks

Omer

omerk said:

     I can't compile your project becuase we do not have v9.2 of the Infragistics2 dlls. The latest version we have is v8.3. Would this make a difference? If not, could you please resend your project using the 8.3 version of these dlls instead?

You can just remove the 9.2 references from the project and add the equivalent 8.3 references.

I can't see any reason why an UltraTextEditor should cause any different in the behavior here. The column will use an EditorWithText by default, so it's essentially the same thing.