or
1 answer
164 views
Hi!
I use the form where it is placed RadWaitingBar. When I display it for the first time - it long boots, much longer, than at usage standard ProgressBar. Whether you plan to optimise loading, and if yes when it to wait?
I use the form where it is placed RadWaitingBar. When I display it for the first time - it long boots, much longer, than at usage standard ProgressBar. Whether you plan to optimise loading, and if yes when it to wait?
Nick
Telerik team
answered
on
16 Jan 2009
2 answers
111 views
Hi,
I have a gridview which uses dynamic SQL. I let the user add as many rows as they want and then when they hit the save button I loop through each row and set the primary key with a new id. However I still get 'Primary Key cannot be null' error even though I have set it. Any ideas?
Thanks
I have a gridview which uses dynamic SQL. I let the user add as many rows as they want and then when they hit the save button I loop through each row and set the primary key with a new id. However I still get 'Primary Key cannot be null' error even though I have set it. Any ideas?
Thanks
Nick
Telerik team
answered
on
16 Jan 2009
3 answers
129 views
I'm using RadControls for WinForms (2008.3 1204).
Assume the following: I have a DateTimePicker. MinDate and NullDate are both set to 1900/01/01. Now I change the MinDate property programmatically to 2009/01/01. In this case, the Value as well as the NullDate property will also be set to 2009/01/01. Furthermore, even if I set the NullDate back to 1900/01/01 after this it is not possible to set the DateTimePicker's value to the NullDate (either by Value=NullDate or by calling SetToNullDate() ) - because the value has to be between MinDate and MaxDate but the NullDate is not.
In my eyes this behaviour is senseless. First, the NullDate property should be completly independent from the MinDate - MaxDate range, to set one of them should not effect NullDate. Second: The DateTimePicker should accept the NullValue date as correct input, even if it is not between MinDate and MaxDate.
I think the condition for accepting a value should be
Or am I mistaken?
Assume the following: I have a DateTimePicker. MinDate and NullDate are both set to 1900/01/01. Now I change the MinDate property programmatically to 2009/01/01. In this case, the Value as well as the NullDate property will also be set to 2009/01/01. Furthermore, even if I set the NullDate back to 1900/01/01 after this it is not possible to set the DateTimePicker's value to the NullDate (either by Value=NullDate or by calling SetToNullDate() ) - because the value has to be between MinDate and MaxDate but the NullDate is not.
In my eyes this behaviour is senseless. First, the NullDate property should be completly independent from the MinDate - MaxDate range, to set one of them should not effect NullDate. Second: The DateTimePicker should accept the NullValue date as correct input, even if it is not between MinDate and MaxDate.
I think the condition for accepting a value should be
| Value == NullDate || |
| Value >= MinDate && Value <= MaxDate |
Or am I mistaken?
Boyko Markov
Telerik team
answered
on
16 Jan 2009
5 answers
119 views
I've got a grid with two columns, the first is a readonly column and the second column collects user input. When tabbing from the user input column, I get the desired behavior that the cell below the current one is activated and enters edit mode. However there is a system beep (is it because the "next" cell is read-only?)
Nick
Telerik team
answered
on
16 Jan 2009
3 answers
142 views
Hello,
I've got a form containing two identical databound GridViews. They are bound to two different DataTables. DataTable2 is a clone of DT1 but on Load only DT1 contains some rows. I've also got two buttons which move all selected rows (in GridView1) from DT1 to DT2 and vice versa. Both GridViews should have the same SortBy- and GroupByExpressions. When I don't add the GroupByExpression to GV2 everything works fine but the grid is not grouped. But when I add the Expression and move Rows to DT2 (shown in GV2), the GroupBy-Rows are shown correctly but when I expand them there is no text shown in the added data rows. I can't figure out why that happens.
The GridView contains three columns:
one visible Column containing Text
one hidden column containing Dates (the GridView is sorted by this column)
one hidden column containing enumvalues (in a ComboBox) (the GridView is groupedby this column)
I hope that I could make clear what I'm trying to do. If you have further questions please ask.
I'm using the latest version of the controls in Visual Studio 2008 running on a Vista64 machine.
Any ideas?
Kind regards,
Nils
I've got a form containing two identical databound GridViews. They are bound to two different DataTables. DataTable2 is a clone of DT1 but on Load only DT1 contains some rows. I've also got two buttons which move all selected rows (in GridView1) from DT1 to DT2 and vice versa. Both GridViews should have the same SortBy- and GroupByExpressions. When I don't add the GroupByExpression to GV2 everything works fine but the grid is not grouped. But when I add the Expression and move Rows to DT2 (shown in GV2), the GroupBy-Rows are shown correctly but when I expand them there is no text shown in the added data rows. I can't figure out why that happens.
The GridView contains three columns:
one visible Column containing Text
one hidden column containing Dates (the GridView is sorted by this column)
one hidden column containing enumvalues (in a ComboBox) (the GridView is groupedby this column)
I hope that I could make clear what I'm trying to do. If you have further questions please ask.
I'm using the latest version of the controls in Visual Studio 2008 running on a Vista64 machine.
Any ideas?
Kind regards,
Nils
Jack
Telerik team
answered
on
15 Jan 2009
8 answers
264 views
Hi Guys,
This issues starts with the following thread, specifically the CellFormatting routine.
http://www.telerik.com/community/forums/winforms/gridview/radmenuitem-in-radgridview-events.aspx
We were able to get the grid to display with the RadMenuElement and RadLabelElement(s) replacing the standard command button. It looks very cool and works well until the user starts to have a lot of data in the grid – the grid slows down to a crawl (dude, I am talking major crawl with display issues like you wouldn’t believe). This makes sense because the CellFormatting event is fired whenever you do anything with the grid. As referred in this thread:
http://www.telerik.com/community/forums/winforms/gridview/adding-image-to-imagecolumn.aspx
So… I decided to move this functionality as was suggested, but I ran into another issue. I continually run up against the CellElement object being NULL. As found in this thread:
http://www.telerik.com/community/forums/winforms/gridview/cellelement-null.aspx
In this thread you state the CellFormatting event handler “is the only place where the CellElement is surely not null”. Big problem, since the CellFormatting event is causing the grid to slow down, and it makes no sense to put my functionality here because I only need to draw the RadLabelElement(s) once on databind anyways.
So… I am stuck.
I have tried to get access to the CellElement in the following events: DataBindingComplete, and CreateCell with no success.
Where can I get access to the CellElement before the grid renders so I can perform the following code.
This code was pulled from the CellFormatting event.
---------------------------------------------------------
e.CellElement.Children.Clear();
RadMenuElement buttonElement = new RadMenuElement();
buttonElement.Items.Add(new RadMenuItem("view"));
buttonElement.Items.Add(new RadMenuItem("modify"));
buttonElement.Items.Add(new RadMenuItem("release"));
buttonElement.Items.Add(new RadMenuItem("new"));
e.CellElement.Children.Add(buttonElement);
Many thanks,
~Mike
Nikolay
Telerik team
answered
on
15 Jan 2009
4 answers
856 views
All,
Thanks for the opportunity to use this control. I have a question regarding the active tab for the RadRibbonBar. I have many forms in my application and when I open certain forms, I would like to change the active tab of the RibbonBar. For instance, say I have a tab name File and another one named Actions. The default form load tab opens with file as the active tab. When I open a form, I would like to change the default tab to the actions tab and make it viewable. I hope my question is clear enough. If not, I will elaborate more. Thank you for your time in this matter.
JPADKINS
Thanks for the opportunity to use this control. I have a question regarding the active tab for the RadRibbonBar. I have many forms in my application and when I open certain forms, I would like to change the active tab of the RibbonBar. For instance, say I have a tab name File and another one named Actions. The default form load tab opens with file as the active tab. When I open a form, I would like to change the default tab to the actions tab and make it viewable. I hope my question is clear enough. If not, I will elaborate more. Thank you for your time in this matter.
JPADKINS
Peter
Telerik team
answered
on
15 Jan 2009
1 answer
227 views
Hello,
I have a Sql database with tables. In each table, there are some types of data such as: string, int, image. Now i want to freely display my database by using Carouse control, where, one record for one item of carousel. I want to customize content what will be displayed on Carousel item: arrange postion of image on carousel item, position of vallue fields on carousel item. BUT i don't know how to do ?
By Devexpress product, namely, GridView control. This control can display a record of database on Carousel Item (string, int, image...). You can view at: http://www.devexpress.com/Products/NET/Controls/WinForms/Grid/carousel.xml
Can anybody help me ?
Thank you so much !
I have a Sql database with tables. In each table, there are some types of data such as: string, int, image. Now i want to freely display my database by using Carouse control, where, one record for one item of carousel. I want to customize content what will be displayed on Carousel item: arrange postion of image on carousel item, position of vallue fields on carousel item. BUT i don't know how to do ?
By Devexpress product, namely, GridView control. This control can display a record of database on Carousel Item (string, int, image...). You can view at: http://www.devexpress.com/Products/NET/Controls/WinForms/Grid/carousel.xml
Can anybody help me ?
Thank you so much !
Deyan
Telerik team
answered
on
15 Jan 2009
2 answers
119 views
I use a BindingList with the gridview and the ListChanged event.
Now when i try to delete the last row in the grid with the context menu the row is visually deleted in the grid but the BindingList's ListChanged event handler doesn't fire up so my BindingList does not recognize the deleting of the last row of the grid.
In other rows it works ok.
Greetings,
Ramius
Now when i try to delete the last row in the grid with the context menu the row is visually deleted in the grid but the BindingList's ListChanged event handler doesn't fire up so my BindingList does not recognize the deleting of the last row of the grid.
In other rows it works ok.
Greetings,
Ramius
1 answer
230 views
I am doing my first project with the WinForms controls and things are going fairly well. However, I have not been able to figure out what Telerik control to use in place of the Windows GroupBox control.
Thanks in advance for your help,
Jim
Thanks in advance for your help,
Jim
Nick
Telerik team
answered
on
15 Jan 2009
