or
1 answer
91 views
I'm having trouble with the RadNumericUpDown control. I was able to boil it down to the following.
1. Create a Windows Application project
2. Place a Element Host in the default form (Form1)
3. Create a WPF UserControl.
4. Place a RadNumericUpDown control in a UserControl:
5. Place that UserControl in the Element Host
6. Run the program.
7. Attempt to click the up or down button in the RadNumericUpDown control.
8. Watch NullReferenceException occur.
This works fine when run in a native WPF app, but fails when hosted in Winforms.
I've tried this with 2009Q2 and 2009Q3 builds.
I'm currently on the trial for RadControls, and this is pretty much preventing me from completing my evaluation and ultimately purchasing the product.
1. Create a Windows Application project
2. Place a Element Host in the default form (Form1)
3. Create a WPF UserControl.
4. Place a RadNumericUpDown control in a UserControl:
| <UserControl x:Class="UserControl1" |
| xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" |
| xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" |
| xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" |
| Height="300" Width="300"> |
| <Grid> |
| <Grid.RowDefinitions> |
| <RowDefinition Height="Auto"/> |
| </Grid.RowDefinitions> |
| <telerik:RadNumericUpDown Maximum="100" Minimum="0" IsInteger="True"/> |
| </Grid> |
| </UserControl> |
5. Place that UserControl in the Element Host
6. Run the program.
7. Attempt to click the up or down button in the RadNumericUpDown control.
8. Watch NullReferenceException occur.
This works fine when run in a native WPF app, but fails when hosted in Winforms.
I've tried this with 2009Q2 and 2009Q3 builds.
I'm currently on the trial for RadControls, and this is pretty much preventing me from completing my evaluation and ultimately purchasing the product.
Boyan
Telerik team
answered
on
15 Dec 2009
1 answer
162 views
Hello,
is there a "today" Button in the DTPicker, which selects the current date?
Best regards,
Markus
is there a "today" Button in the DTPicker, which selects the current date?
Best regards,
Markus
Konstantina
Telerik team
answered
on
15 Dec 2009
3 answers
295 views
Hi,
I wanted to know if it is possible to display edit controls only when the mouse is over the row.
I mean by that that if there is a combobox in a cell, the combobox is not visible as long as i am not overing the mouse on a row. Instead of the combobox, we should see the text only. This allow to have a clean datagrid not clustered with tons of controls and, be able to edit easily with the mouse.
Thank you!
I wanted to know if it is possible to display edit controls only when the mouse is over the row.
I mean by that that if there is a combobox in a cell, the combobox is not visible as long as i am not overing the mouse on a row. Instead of the combobox, we should see the text only. This allow to have a clean datagrid not clustered with tons of controls and, be able to edit easily with the mouse.
Thank you!
Tsvyatko
Telerik team
answered
on
15 Dec 2009
2 answers
63 views
I have a column with a checkbox in it which will reflect the selection status of the row. This column is added via the xmal and the other columns are binding to the data source.
Same implementation as the following link:
http://www.telerik.com/community/forums/wpf/gridview/button-and-checkbox-on-row.aspx
They work very well and only one issue for me. I can sort other columns by default, but nothing happen when I click the header of the checkbox column, neither the colour will change when I move the mouse over it like other columns.
Is it possible to sort the grid be selection status of the rows (true or false) when I click the header of this column, just like a REAL data column?
Many thanks!
John
7 answers
159 views
What event of the rad Carousel can I use to track the currently selected item’s index when it changes?
I need to track the selected item’s index in the Carousel control for both the mouse and keyboard whenever the Carousel item is changed to another item. For example, just like in a list box, the selected item changed event is raised letting you read the currently selected item’s index.
I noticed that the Carousel control has buttons that you can move to next, previous, last, first, etc. but there are no button click events for those buttons on the Carousel control itself.
So again, I just need a way to perform the following task using a Carousel control event:
1. The currently selected item changes to a new item
2. I then can get the new selected item’s index of the Carousel control
And again, I need to do this task no matter if it is the keyboard, the mouse, the mouse wheel, the click of the mouse, etc. I just need an event to help me get the currently selected item’s index.
Note: I am not using the most recent version of the telerik controls. I think I am one or two versions prior.
Help!
Bill
4 answers
270 views
I'm having some problems with the IsHidden property of the RadPane. I cannot seem to get a RadPane to show again once the user has clicked the hide cross button.
I have tried doing the following:
- Have a RadPane in a RadDocking.
- Click the hide cross button.
- Have a menu item with an event handler in the code behind of the window.
- In the event handler:
this.myRadPane.IsHidden = false;
The IsHidden is set and is even serialized if I use SaveLayout() on the docking. But the panel doesn't show up. Am I missing something here?
Regards,
// Martin
2 answers
120 views
I'm sorry for "Cross Posting" but I put this in the wrong forum originally
I'm using the numeric up down for several measurement entries, the user is able to use the "." key on the numeric keypad, but not the "." key on the alphabet keyboard (next to the "," key and the shift key).is there a reason that the period key isn't allowed, and how do I get past it. this is a big problem for my users, as they all use laptops with no "numeric keypad".
Is there a workaround?
Thank you
Joshua
joshua odell
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answered
on
14 Dec 2009
4 answers
206 views
Hi,
1) I'm trying to figure out how to decrease the size of the points on a line chart. I'd like them to go away completely, or make them so small the line masks where they are. Is there a way to turn them off?
I'm new to Telerik RAD tools, and I have a couple newbie questions:
1) I'm trying to figure out how to decrease the size of the points on a line chart. I'd like them to go away completely, or make them so small the line masks where they are. Is there a way to turn them off?
2) I'd like to know where it is you can change what kind of chart you're working with. Right now, I have a LineArea chart, and I'd like to change it to just a Line chart. For me, the default is line area, and I need the fill area beneath the line to be clear.
3) I'd also like to know how you set the speed of the animation of the line. Right now I have the animation disabled, but it would be nice to have it animate EXTREMELY fast. Right now we have 600 points on a line graph, and I'd like to animate those points (3 major peaks) in about 3 seconds... and then perhaps repeat. (We're simulating a heart beat EKG)
Any advice or help would be much appreciated. Thanks so much!
Greg
1 answer
74 views
GridViewControl - how to load data to it from simple datatable..? There is not such a trick as DataSource, as it was in winforms. DataBinding is the only way to do that?
Vlad
Telerik team
answered
on
14 Dec 2009
1 answer
94 views
I'm using the numeric up down for several measurement entries, the user is able to use the "." key on the numeric keypad, but not the "." key on the alphabet keyboard (next to the "," key and the shift key).
is there a reason that the period key isn't allowed, and how do I get past it. this is a big problem for my users, as they all use laptops with no "numeric keypad".
Is there a workaround?
Thank you
Joshua
Konstantina
Telerik team
answered
on
14 Dec 2009
