Questions on UI for WinForms Forum

3 answers

212 views

[Solved] Diffrent datasource for every rows in GridView.

Hello,
I have problem with using two datasource in one column in my grid. I have two columns:
- column to choose type of number
- column GridViewComboBoxColumn with numbers binded to datasource
User in every rows can choose type and number from next column, I have two data source with numbers A, and number B. Can I define datasource for any rows? Someone implemented this mechanism ?
I use Q2 2010.

Thanks for help
Marcin

GridView

answered on 03 Jan 2011

3 answers

236 views

radbutton enable problem

Hi there....
I'm using Winform 2010 3 10 1109 dev....
I'm attached picture when the button is enable, disable, then I'm enable it again....
there are something wrong, the button not looks like the first when i'm enable it...
but the function is the same...
What's wrong with the button...??
first enable
disable
enable Again

Buttons, RadioButton, CheckBox, etc

answered on 03 Jan 2011

2 answers

114 views

[Solved] GridViewRowInfo.IsExpanded Error!!

GridViewRelation selfRelaction = new GridViewRelation(this.radGridView1.MasterTemplate, this.radGridView1.MasterTemplate);

selfRelaction.ParentColumnNames.Add("column1");

selfRelaction.ChildColumnNames.Add("column2");

this.radGridView1.Relations.Add(selfRelaction);

this.radGridView1.Columns["column1"].IsVisible = false;

this.radGridView1.Columns["column2"].IsVisible = false;

this.radGridView1.Rows.Add(1, null, "1", "1", "1", "1");

this.radGridView1.Rows.Add(2, 1, "1", "1", "1", "1");

this.radGridView1.Rows.Add(3, null, "1", "1", "1", "1");

this.radGridView1.Rows.Add(4, 3, "1", "1", "1", "1");

this.radGridView1.Rows.Add(5, null, "1", "1", "1", "1"

); 



//error : radGridView1.Rows.Count is "0"!

this.radGridView1.Rows[0].IsExpanded = true;

this.radGridView1.Rows[2].IsExpanded = true

;



radGridView1.Rows.Count is "0"!

Help me! Both Q2 and Q3!

GridView

answered on 31 Dec 2010

1 answer

165 views

AutoHide tab height

Hi,

How do I set the height of the tab that is shown when a toolwindow is autohidden?

if I use

radDock.AutoHideWindow(toolWindow);

in the forms ctor the height of the tab is smaller than when doing it in the forms Load eventhandler or when the users manually autohides a toolwindow.

Thanks,
Brian

Dock

answered on 30 Dec 2010

2 answers

200 views

submenu width

Hi,
I have a problem with submenus width in a radapplicationmenu inside a radribbonbar.
My submenus are larger then the main menu.

How ca I set my submenus as large as my main menu ?

As attachement a screenshot of my problem

Main Menu
Sub Menu

RibbonBar

answered on 30 Dec 2010

3 answers

272 views

[Solved] How can I disable hot tracking from column header elements?

Hi

How can I disable hot tracking from column header elements?

Regards

GridView

answered on 29 Dec 2010

1 answer

201 views

Series.DefaultLabelValue format to ShortDate

Hi,

I am using RadChart to show datetime values in X Axis. I need to show in the values, both values: x and y.

I use the property DefaultLabelValue in Series object: this.radChart1.Series[0].DefaultLabelValue = "#Y";

I need show X value in shortdate format. If I write this.radChart1.Series[0].DefaultLabelValue = "#X,#Y"; , the values are doubles and not datetime.

Thanks,

Chart (obsolete as of Q1 2013)

answered on 29 Dec 2010

1 answer

137 views

DropDownList not a drop-in Replacement for standard Winforms ComboBox

If you are using these new controls, be aware that there are subtle inconsistencies between them and the standard Windows Forms controls.
If you rely on standard behaviour, your code may not work as expected.
I expect telerik to fix that, so when you code to the controls as they are now, expect having to change that back again with upcoming releases.

Bugs I found (and reported) so far:
- FindStringExact throws an Exception if Item.Count is 0
- Adding an Item to the DropDown List clears the TextBox

Regards
Erwin

DropDownList

answered on 29 Dec 2010

3 answers

253 views

[Solved] Items redraw slow after enabling RadPanel

Hi!

I am using RadPanel as a container for 8 buttons (generic winforms buttons) and use it to enable or disable all the buttons at once. The problem that I am facing is, that after enabling the panel, buttons are not drawn as enabled immediately, but are drawn as enabled in a haphazard manner (eg.: first two buttons are drawn as enabled, followed by 3 other buttons, etc). On a generic panel buttons are drawn immediately without any extra settings, so my question is, how can I enable the same behavior on RadPanel? I tried doing Refresh immediately after enabling the panel, as well as enabling double buffering, but it didn't help. I am using version 2010.3.10.1109 of WinForms.

Panel

answered on 29 Dec 2010

1 answer

124 views

RadGridView and Editfields bound to the same datasource not synchronized

Hello all.
I see a strange behaviour when using the RadGridView instead of the DataGridView.
The grid's property is set to not allow to add new lines and not to be editable.

I have a win form with a DataGridView and two edit fields and a binding navigator.The DataGridView and the edit fields are bound to a database table.
If i press the „Add“ button in the binding navigator, the DataGridView scrolls down to the bottom, adds an empty line at the bottom and the two edit fields are cleared. After entering data in the edit fields, and selecting any other items in the DataGridView, the values from the edit fields are shown in the new line at the bottom of the grid.

Now I have replaced the DataGridView with the RadGridView 2010 Q3.

If I press the „Add“ button in the binding navigator, the RadGridView scrolls down (but not to the very bottom), adds an empty line at the bottom, however it does not scroll to this new line. So it’s invisible until the user scrolls the list to the end. The two edit fields still have the content of the last selected item. They are not cleared. I can overwrite in the two edit fields the existing values with some new values. The new values are now in the dataset but the RadDataView is not updated with the new values. At the bottom in the grid, there is still the new empty line. If I click on the empty line, the correct values are shown in the edit fields.
If I sort the RadGridView the empty line is updated with the value, entered in the edit field.

I want a behaviour like the .NET DataGridView.

I had a chance to install the 2009Q3 version of WinForms. And surprisingly here the behaviour is as I have expected (same as MS DataGridView).

So this leads to the conclusion, that between the versions 2009Q3 and 2010Q3 there was introduced a problem with the update mechanism.

GridView

answered on 29 Dec 2010