or
15 answers
1.0K+ views
Hello,
It's me again =)
I have a question about NullValue property:
Here is my numericUpDown control code:
As you see i want RadNumericUpDown to show nothing in it's textbox when it's binding value is null. But when the the userControl with this numericUpDown is loaded i see the value $0.00 in it's textbox instead of "empty" string.
When i delete everything from textbox and it loses focus everything works well: no value appears in textbox.
I tried to check Value property of RadNumericUpDown on Initialized and Loaded event - it's not null but 0.0.
I also tried to inherit from RadNumericUpDown and override FormatDisplay mehtod to check the value that it get from argument, but it's also 0.0.
So the question is how to show nothing in RadNumericUpDown textbox when it has just loaded and it's binding value is null?
It's me again =)
I have a question about NullValue property:
Here is my numericUpDown control code:
As you see i want RadNumericUpDown to show nothing in it's textbox when it's binding value is null. But when the the userControl with this numericUpDown is loaded i see the value $0.00 in it's textbox instead of "empty" string.
<telerik:RadNumericUpDown Name="numericVMDNQRS" NullValue="" Value="{Binding Path=Tier.VMDNQRS,ValidatesOnDataErrors=True,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}" IsEditable="True" AutoReverse="False" Minimum="0" SmallChange="0.1" LargeChange="1" V alueFormat="Percentage" DataContext="{Binding}"/>When i delete everything from textbox and it loses focus everything works well: no value appears in textbox.
I tried to check Value property of RadNumericUpDown on Initialized and Loaded event - it's not null but 0.0.
I also tried to inherit from RadNumericUpDown and override FormatDisplay mehtod to check the value that it get from argument, but it's also 0.0.
So the question is how to show nothing in RadNumericUpDown textbox when it has just loaded and it's binding value is null?
Dilyan Traykov
Telerik team
answered
on
26 Feb 2018
10 answers
172 views
Hi,
On my fields list I setting a custom display name.
When I dragged field from field list and I dropped to reportfilter/column label/ row label or values it keep the right name.
But when I drag field between reportfilter, column label, row label and values the dragged item show the Property name instead of the Display Name (see the attachment)
How can I fix it?
Thank you
2 answers
462 views
If the user hides the searchpanel, the search values in the Background are still active. How can this i delete the values when the user closing the searchpanel.
3 answers
657 views
I want to cancel the delete event and not delete the current record. I just want to edit the current record and set the property "IsActive = false".
1.private void MyDataForm_DeletingItem(object sender, System.ComponentModel.CancelEventArgs e)2. {3. Person currentPerson = this.MyDataForm.CurrentItem as Person;4. currentPerson.IsActive = true;5. e.Cancel = true;6. }This code does not work. How can I implement the function?
2 answers
319 views
When binding to a dynamic object in the grid, we all know that the Dynamic column will be treated as an object and the cell templates will not be what is expected for some columns. Is there a property on the Column (I haven't found one digging in the source yet) to set the columns data type or do I need to use a Template Selector to achieve this per column that I don't want to be treated as a string?
Thanks,
Maurice
133 answers
1.6K+ views
RadCalendar:
- How to Customize the Calendar Buttons - This help topic explains how to apply different Style to some buttons in the Calendar using StyleSelector.
RadDiagram:
- Create custom shapes in the RadDiagram with MVVM - The forum thread elaborates on how to create custom shapes in the RadDiagram following an MVVM approach.
- Populate the RadDiagramToolbox with custom business data - In this forum thread you can find a sample solution and guidelines on how to populate the RadDiagramToolbox with custom business data and based on the data type drop different objects on the diagramming surface. The attached solution also demonstrates an approach for providing custom information in a SettingsPane tab.
- Unfocused state for the selected GridViewRow - With Q2 2012 we have introduced a new Unfocused state for the selected GridViewRow. It will be shown when the GridView is out of focus. If you want to revert to the previous behavior you can check this help article.
- Saving and loading the state of the LocalDataSourceProvider - In this forum you will find example how to save the current state of RadPivotGrid and when you restart your application, to load it again from this state
- How to edit the ControlTemplate of RadPivotFieldList and filter some of its public properties - In this forum you will find useful information how to edit the ControlTemplate of RadPivotFieldList and also how to filter some of the public properties that you do not want to show in RadPivotFieldList
- Guidelines for Printing with RadDocument - As RadDocument is sometimes used independently of RadRichTextBox to layout content and export it, this article explains the basics of creating a document programmatically.
Dinko | Tech Support Engineer
Telerik team
answered
on
23 Feb 2018
7 answers
124 views
Dear Sir,
We want extend RadPanelBar and RadPanelBarItem to make them multilingual in accordance with our multilingual framework. But problem is that as soon as we extend these classes it do not render at all even if we do not write single line of code in the extended class.
Same problem is also with other controls like Tab Control.
Please suggest us how to resolve this issue.
Regards
Vinay
We want extend RadPanelBar and RadPanelBarItem to make them multilingual in accordance with our multilingual framework. But problem is that as soon as we extend these classes it do not render at all even if we do not write single line of code in the extended class.
Same problem is also with other controls like Tab Control.
Please suggest us how to resolve this issue.
Regards
Vinay
Dinko | Tech Support Engineer
Telerik team
answered
on
23 Feb 2018
1 answer
104 views
Bing's branding guidelines states, "Bing Maps data provider attribution information can be accessed through the Get Imagery Metadata method in Bing Maps REST Services."
https://www.microsoft.com/en-us/maps/mobile-brand-guidelines
I see there's an imagery metadata classes in RadMaps, but I don't see how to access or use them. Can you provide an example?
Petar Mladenov
Telerik team
answered
on
23 Feb 2018
3 answers
471 views
In one of our applications, we want to restrict access to a configuration page.
Throughout the application, we are using RadWindow.Alert, Confirm and Prompt as our UI messaging system.
We don't need a crazy overdoing of security to restrict the configuration page, but it would be nice if we could change the TextBox of the RadWindow.Prompt to be a PasswordBox so the contents of the box are not visible to anyone looking at the screen.
Is there any way to do this? I would rather stay with the consistent look/behavior of using the RadWindow since we are already using it in several other places.
Thanks!!
Paul
Martin Ivanov
Telerik team
answered
on
23 Feb 2018
1 answer
105 views
Hello,
I am trying to spellcheck certain controls in our project. However, whenever I make a call to RadSpellChecker.Check(this.textBox1, SpellCheckingMode.WordByWord), the corresponding spell checking window does not seem to load/open properly (there is just a transparent footprint of the window). Our project uses implicit themes and we suspect this is causing the problem. On a small test project (no implicit themes), the RadSpellChecker seems to work fine. Thank you.
Tanya
Telerik team
answered
on
23 Feb 2018
