Questions on UI for WinForms Forum

1 answer

209 views

BackColor

Hi,

I am setting the BackColor of a RadTextBox control at runtime. There are some discrepancies between what the documentation says, what the recommended approach is in the forums, and what actually seems to work.

The documentation:

ms-help://telerik.winforms.5.0/telerik.winforms.raduielements/RadTextBoxProgramming.html

The fourms:

http://www.telerik.com/community/forums/thread/b311D-hkggh.aspx

Noel

General Discussions

answered on 28 Mar 2008

3 answers

358 views

GridViewNewRowInfo.DataBoundItem is null

When adding a new row (in line editing), the GridViewNewRowInfo.DataBoundItem is null even though it is bound to the underlying object.

Here's my situation: I'm binding a BindingList of objects to the grid's data source. I'm implementing an MVP pattern where the Presenter listens to the binding list's AddingNew event and initializes the new object. Prior to Q1 2008 beta, the initialization made in AddingNew was not reflected in the grid's new row (this seems to be fixed in Q1 08 beta).

I am also implementing cascading combo boxes (Country selection drives items in the State column). The Presenter listens to ListChanged events and computes the available States when the object's Country changes. The filtered list of States is added to the object (presentation model). In RadGridView.CellBeginEdit, the view modifies the RadComboBoxEditor, reseting the State list source to the new filtered list in the presentation model. This works for existing rows, but breaks for new rows since the new row's DataBoundItem is null.

GridView

answered on 28 Mar 2008

4 answers

313 views

Child Rows for a GridViewGroupRowInfo

Now that the rows collection includes only data rows, how do I get the child data rows for a GridViewGroupRowInfo? I'm in the SelectedRow event after a group row was selected by the user. I need to get information from the data rows that makes up the group. The rows collection is always empty. This one is BIG.

GridView

answered on 28 Mar 2008

2 answers

167 views

Alternating row style

Hi, how can I change the style on alternate row? I see another post with same question, and you told to do it:

        private void radGridView1_RowFormatting(object sender, RowFormattingEventArgs e)
        {
            if (e.RowElement.IsOdd)
            {
                if (!e.RowElement.IsCurrent)
                {
                    e.RowElement.BackColor = Color.Beige;
                }
                else
                {
                    e.RowElement.BackColor = Color.LightBlue;
                }
            }
        }

but when you scroll, you loose the style.

GridView

answered on 28 Mar 2008

1 answer

142 views

Dock documents activate and deactivate

I have main form (mdi container) with docking. I open new forms as document dock. When click in dock tabs (swich forms), then does´nt fire deactivate form event, and activate event does not fire too.

i need this events to merge and unmerge toolstrip (net).

Dock

answered on 28 Mar 2008

5 answers

218 views

Upgrade Tips

Since this release completely breaks backward compatibility, is there anything I can refer to for tips/techniques for upgrading? Some of the items have been obsoleted and therefore tell me the replacement method. A few others I've been able to figure out through experimentation or by looking at the examples. There are some where the feature has been commented out in the example (see AutoCompleteMode and DropDownStyle of a grid combobox column) and it's not obvious how that functionality has been replaced. I would love a list of breaking changes and the replacement way to do the same thing.

Thanks.

GridView

answered on 28 Mar 2008

1 answer

103 views

GridComboBoxEditor null value not persisting

RadComboBoxEditor items with value of NULL is not persisted to bound object model.

I'm binding a list of objects to the grid that allows edits. The column is bound to a property of type Object. One of the items in the combo box has a value of NULL (representing no selection). Selecting this item does not update the underlying bound object.

side note: change the item's value to DBNull and binding works as expected. This provides a work around, but forces undesired knowledge of DBNull in the bound presentation model.

GridView

answered on 28 Mar 2008

1 answer

365 views

Equivalent of WinForms ProgressBar .PerformStep Method?

Hello,

The windows standard progress bar control has a "PerformStep" method which automatically increments the progress bar based on the value of "step" property.

Is there an equivalent of this method for the RadProgressBar? I am looking for this because I'd like to increment the RadProgressBar based on a completed action, rather a time based update.

For example:

    
            For i as integer = 0 to 60 '<--this number will be dynamic based on database records  
        
                '//Do Something here  
        
                RadProgressBar.PerformStep  
        
            Next

Thank You.

ProgressBar

answered on 28 Mar 2008

1 answer

84 views

Adding a control to the GAC (Global Assembly Cache)

Hi,

I visited this site
http://www.telerik.com/support/kb/article/b454K-cgk-b454T-a.aspx

But, seems like it's just for the ASP.NET as it mentioned about the machine.config. what about those WinForm controls to be added to GAC?

Please advice.

General Discussions

answered on 28 Mar 2008

1 answer

74 views

Dynamicly create new Document and copy controls to it from existing tab

Hi all,
I want to the user to press a button and it will create a new DocumentPanel. The controls on that new tab will be the exact controls of the DocumentPanel, plus I want to copy some content over from the old to the new. How do I create a new DocumentPanel dynamically with the same controls and layout of those controls of an existing DocumentPanel?
John

PS. I posted a simular question in the tabstrip forum, but I should have posted here.

Dock

answered on 28 Mar 2008