Telerik Forums
UI for WinForms Forum
3 answers
114 views

I am trying to set the color of the bar , when a value goes below a certain amount. I have tried the below, but none of them change the color of the bar from Green to red. :

      barBat.BackColor = Color.Yellow
                        barBat.GaugeElement.BackColor = Color.Yellow
                        barBat.GaugeElement.BackColor2 = Color.Yellow
                        barBat.GaugeElement.BackColor3 = Color.Yellow
                        barBat.GaugeElement.BackColor4 = Color.Yellow

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 03 Sep 2018
15 answers
1.2K+ views
Hi,

Is it possible to get the selected text value of a GridViewComboBoxColumn for a set cell in a row?

thanks

David
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 03 Sep 2018
1 answer
374 views
There's a way to remove the border around the tree view control?
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 03 Sep 2018
2 answers
207 views

Hi, 

I'm struggling for something that perhaps is very easy...

I have assigned a DataTable as Datasource for my GridView.

The data is correcly shown and the boolean values are mapped on checkboxes.

I save back the values to the database getting the new values from the DataTable.

However sometimes the user open the form, click on checkboxed value, and then click on the Save button.

It seems that if you don't deselect the modified Row, the new value of the checkbox is not stored into the DataTable, so I save the old value, while in the GridView you see the new value.

Is there a way to force the sync right after the click on the checkbox?

I've tried with something like this, but without success.

private void RadGridView1OnCellBeginEdit(object sender, GridViewCellCancelEventArgs e)
{
            e.ActiveEditor.EndEdit();
            e.ActiveEditor.Validate();
}
Dimitar
Telerik team
 answered on 03 Sep 2018
2 answers
162 views

 Hi there, I've searched internet for info for a long time but I couldn't get much answers, this why I'm asking here.

I have a simple UserControl with 2 radtextbox inside, one with dock left and other with dock fill.

What I wanna do is the same u do with Textbox height. Example: if u change the Textbox Font or ThemeName it's height will be resized.

This is exactly what I want to do, change my UserControl height to be exactly the same TextBox height when I change Font or ThemeName.

I've already tried:  

-> override void SetBoundsCore();

-> inherit ControlDesigner to override SelectionRules.

-> overriding Size property do half work, because the UC keeps reseting location to 0,0 when used, every build 

And, of course I'm setting those TextBox Font and Theme when change it on UserControl.

And it should work the same way on the designer.

Sorry for bad english. And hope u could understand what I'm trying to achieve.

 

Hristo
Telerik team
 answered on 03 Sep 2018
0 answers
115 views

Good morning.
I have a DataGrid with cells whose wallpaper is red, green or orange.
I must allow the selection of certain cells that have the same color background.
I am testing with the "SelectionChanging" and "SelectionChanged" events, as well as with "ViewCellFormatting", but I can not avoid selecting any cell.
Any suggestions?

Thanks!

Esteban
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Rank 1
Iron
Iron
 asked on 31 Aug 2018
3 answers
174 views

Add a button in RichTextEditor demo project, and this code in its event handler:

var editor = new RadDocumentEditor(radRichTextEditor1.Document);
var startA = new DocumentPosition(editor.Document);
var endA = new DocumentPosition(editor.Document);
 
Span a = new Span("A");
editor.InsertInline(a);
 
startA.MoveToStartOfDocumentElement(a);
endA.MoveToEndOfDocumentElement(a);
 
System.Diagnostics.Debug.Assert(startA != endA);

 

Why this last line asserts? I would like to set a DocumentPosition to the end of newly added "A" text (or just select it), but don't know how.

Tanya
Telerik team
 answered on 31 Aug 2018
2 answers
451 views

Hi,

I have a datetime column in a RadGridView as a GridViewDateTimeColumn. When the excel-like filter is used it is setting the expression includes "12:00:00 AM", so when selecting todays days date it does not work. See the attached gif (performed on 08/28/2018). How can I have the filter only filter by date (and not time)

Thanks

 

Terry
Top achievements
Rank 1
 answered on 29 Aug 2018
2 answers
347 views

Hi i'm trying to understand how to use TypeConverters with databound columns.

The databound type is Int and I want to display a picture in a GridViewImageColumn based on that, but I can't make it work, the TypeConverter is never used by the RadGridView to convert the data?

Code:

TypeDescriptor.AddAttributes(typeof(int), new TypeConverterAttribute(
typeof(SeverityImageConverter)));
GridViewImageColumn Severity = new GridViewImageColumn("Severity", "Severity");
Severity.DataTypeConverter = TypeDescriptor.GetConverter(typeof(int));
IssueOverviewGrid.MasterTemplate.Columns.Add(Severity);
IssueOverviewGrid.DataSource = MasterBindingSource;

Type converter implementation:

public class SeverityImageConverter : TypeConverter
{
public override bool CanConvertFrom(ITypeDescriptorContext context,
   Type sourceType)
{
if (sourceType == typeof(int))
return true;
else
return base.CanConvertFrom(context, sourceType);
}

public override object ConvertFrom(ITypeDescriptorContext context,
   System.Globalization.CultureInfo culture, object value)
{
// if no value passed along
if (value == null)
throw new ArgumentNullException("value");

// if the source is a string then convert to our type
if (value is int)
{
// get strongly typed value
int? SeverityValue = value as int?;
Image SeverityImage = Library.GetIssueSeverityIcon(SeverityValue.Value);

return SeverityImage;
}

// otherwise call the base converter
else
return base.ConvertFrom(context, culture, value);
}
}


Christoffer
Top achievements
Rank 1
 answered on 29 Aug 2018
1 answer
558 views

Hi everybody :)

I am turning a little bit crazy, I am trying building a classic form, with some radlabel and some radtextbox control.

All controls are placed in LayoutControlItems, and for elementary aesthetic reason I would like that my label control would be align middle right in the LayoutControlItem. to be close to the radTextBox.

For some reason beyond my understanding, whatever the way I have been using, moving anchor, TextAlignment, my radlabels remain aligned left.

I probably miss something very stupid but some help would be welcome :)

Jeff

Hristo
Telerik team
 answered on 29 Aug 2018
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