Questions on UI for WinForms Forum

0 answers

114 views

Hello Telerik Team

I have a table in database which has some Float column, I load that table data in to a data table and assign the data table to a radgridview as a datasource, when a grid cell is not in edit mode I want to see the float values whit out decimal point
,but when the cell is in edit mode I want to see the float values with decimal point(we have some thing like this in excel),
I use this format string to achive it
((GridViewDecimalColumn)GrdItm.Columns[FieldName]).FormatString = "{0:#,#}";
but when the cell is in edit mode it shows only 2 decimal point.I have attached a file which show what I need in radgridview.
If it was possible I send you a demo about what I need
I will be realy thankfull if you could help me

GridView

asked on 11 Jun 2014

4 answers

205 views

Is it possible to set backgroundimage to ToggleButton instead of backcolor?

I tried it. but the background image does not work for me.

What's wrong?

Buttons, RadioButton, CheckBox, etc

answered on 11 Jun 2014

5 answers

104 views

Radcontrols Design View Error

Hi

I am getting the below error suddenly, My application works until yesterday, today I installed "RadControls for ASPNET AJAX Q1 2009", after that my all windows RadGrid contorls giving the errors.

Error:

Telerik.wincontrols.RadpropertyNotfoundException: No such property registered: Rowspacing,Telerik.windcontrols.UI.GridTableElement.

Regards
raju

Dock

answered on 10 Jun 2014

2 answers

395 views

Current Page event

Is there an event to sync with the current page on pdf viewer document?

Since the navigator is in sync there should be, i guess, such an event, but I can't find it.

Can you please help?
Best Regards
Andrea

PdfViewer and PdfViewerNavigator

answered on 10 Jun 2014

2 answers

135 views

Server side large dataset filter

Hello, i have some tables with something like 1GB data and 2M records, i have a very efficient ibindinglistview implementation to cache few data locally, so i download from DB server only few rows.

It is possible to use the integrated grid UI to set the Filter expression on my IBindingListView to reload the local cache or do i have to hide the integrated filter UI and add some filter textbox outside the grid?

Best regards.

GridView

answered on 10 Jun 2014

6 answers

514 views

Assigning datasource and SelectedIndexChanged event

Hi, at last I am delving into the Winforms controls for the first time, but I am coming up against some strange behaviour when manually binding a RadComboBox to a datasource.

Here is the code called from form_load:

    
            protected void PopulateDropDown()  
        
            {  
        
            DataTable topics = osa.GetAllTopicsForExistingAssessmentsDT();  
        
            radComboBox1.DataSource = topics;  
        
            radComboBox1.DisplayMember = topics.Columns["topictext"].ColumnName;  
        
            radComboBox1.ValueMember = topics.Columns["topicID"].ColumnName;  
        
            }

The datasource is simply a DataTable returned from a webservice.

The issue I have is the when DisplayMember is set, the radComboBox1_SelectedIndexChanged event fires twice and then once again when ValueMember is set. Why is this?

Regards,
Jonathan

Regards,
Jonathan

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 09 Jun 2014

3 answers

436 views

Refreshing Child Rows

I have a grid that displays a parent-child relationship nicely. The user can select a record and edit it if they choose. When they do, before the user is returned control of the form, I grab the underlying DataSource, find the record the user just edited, and update it to reflect their changes. It's faster than refreshing the entire DataSource.

Like so:

// select the existing item

List<Classes.ContractItem> currentContractItems = (List<Classes.ContractItem>)this.dgList.DataSource;

int index = currentContractItems.FindIndex(c => c.ContractItemId == this.CurrentContractItemId);

if (index != -1)

{

currentContractItems.RemoveAt(index);

currentContractItems.Insert(index, this.CurrentContractItem);

}

else

currentContractItems.Add(this.CurrentContractItem);

this.dgList.DataSource = currentContractItems;

This works perfectly for the parent. My problem is refreshing the child rows of the record being updated. this.CurrentContractItem has a List<T> property that contains all the child records, and they are already updated and ready in the above code. So there is something additional I need to do to get the grid to refresh it's child rows.

I've tried several things, reviewed and tried several posts that I found on here. Most were ancient and needed translation from obsolete methods and properties, but I tried them anyway.

What can I do to get the child rows to refresh themselves when the underlying DataSource has changed?

The RadGrid has a Template

GridView

answered on 09 Jun 2014

1 answer

165 views

Coloring scrollbar

Hi,

I have a RadScrollablePanel and I'm trying to figure out how to color the vertical scrollbar through code and not by setting a theme. Can you tell me how to do that?

ScrollablePanel

answered on 09 Jun 2014

1 answer

132 views

RadMarkupDialog and SpellCheck

Hi all,
I am currently using the RadMarkupDialog to enable HTML markup on a column in a RadGridView.
I would like to enable spell check on the entered text somehow but cannot seem to see how to do this.

The code I am using to display the dialog and set the text is

Dim dialog As New RadMarkupDialog()
dialog.DefaultFont = RadGridView1.Font
dialog.Editor.RibbonBar.CommandTabs(1).Enabled = False
dialog.Editor.HyperlinkButton.Enabled = False
dialog.Value = RadGridView1.CurrentCell.Text
Dim result As DialogResult = dialog.ShowDialog()
If result = DialogResult.OK Then
Me.RadGridView1.CurrentCell.Value = dialog.Value
Else
End If

Any ideas on how to do this?

TextBox