Questions on UI for WinForms Forum

7 answers

2.2K+ views

Row Double Click

Is there a way to differential data row double-clicks from double-clicks in the header or scroll bar. RadGridView::DoubleClick seems to fire when anything is double clicked, and the sender is always the grid, not the specific element.

Looking at MouseDoubleClick, I think I might be able to use the event's X and Y to get the child control at that position and check to see if it's a data row. Are there other options?

GridView

answered on 18 Sep 2019

6 answers

283 views

SelectedItems MultiLine?

Hey Guys

I would like the selectedItems to line wrap when required. Ideally I would like the control to grow in height when the user selects enough items that require a new line. ( the same way as the Telerik MultiSelect Web Controls work)

See screen Shot.. the top control has the minimum height updated to what I would like to be the maximum height , however the selected items just dis appear off and cannot be seen.

I have been fiddling with the minimum , maximum sixes etc, but I don't seem to find how to achieve this. ( Maybe it's related to how I add the selected items?)

Any help most appreciated.

Rob

DropDownList

answered on 18 Sep 2019

1 answer

134 views

Horrific crashing. What have I done wrong?

I was receiving exceptions when attempting to set range at runtime on the range selector.

System.NullReferenceException
HResult=0x80004003
Message=Object reference not set to an instance of an object.
Source=Telerik.WinControls.ChartView
StackTrace:
at Telerik.Charting.CombinedBarSeriesRoundLayoutStrategy.ApplyLayoutRoundingVertical(LayoutContext context)

So I stripped the form out of the main project and I've put it into a sample application. Commenting out lines 13 and 14 of FrmPerformanceChart.cs leads to different levels of nightmare.

Link to project is sample: testchart

RangeSelector

answered on 17 Sep 2019

5 answers

321 views

DropDownListEditor ComboBox Mode

Is it possible to set a DropDownListEditor in a PropertyGrid to behave like a ComboBox?

I have tried setting the DropDownStyle property to RadDropDownStyle.DropDown, which looks as though this should setup this behaviour, but it does not seem to work. It is not possible to enter text even when this has been set.

Is there an additional step that needs to be taken in order for the dropdown list to allow text entry?

Thanks,

Chris

PropertyGrid

answered on 17 Sep 2019

5 answers

776 views

Overriding Theme for Specific Control After applying Customized Theme For Entire Application

HI,

i am using Customize Theme for my for entire Windows Application . My Requirement for search textboxes i need Shaded Background Color As attached ShadedTextbox.png.

After goggling i came to know that we can use 2 customize themes , one is for Entire Application and the other is for Search textboxes.
I tried http://www.telerik.com/community/forums/winforms/buttons/override-button-color-with-theme.aspx , but i unable to achieved.

Please look below sample code
Assembly lAssembly = Assembly.LoadFrom("RadTheme.dll");
ThemeResolutionService.LoadPackageResource(lAssembly, "RadTheme.Theme.FenixTheme.tssp");
ThemeResolutionService.LoadPackageResource(lAssembly, "RadTheme.Theme.FenixThemeTwo.tssp");

//ThemeResolutionService.LoadPackageResource("RadThemeExample.Themes.FenixTheme.tssp");
//ThemeResolutionService.LoadPackageResource("RadThemeExample.Themes.FenixThemeTwo.tssp");

ThemeResolutionService.ApplicationThemeName = "FenixTheme";
this.radTextBox1.ThemeName = "FenixThemeTwo";

Please Find Attached Image SampleApp.png.

Themes and Visual Style Builder

answered on 16 Sep 2019

10 answers

457 views

Export to Excel with GridView

Good morning

I have the next case i am using a gridView and i want export a Excel the content the gridView but with exception of any columns. its is possible.. for example i have a GridView with 7 columns and i need export a excel..but only five column of the grid its possible?

public

void Export(String sFilepath, RadGridView grvExportExcel)

{

try

{

ExportToExcelML exporter = new ExportToExcelML(grvExportExcel);

exporter.SummariesExportOption =

SummariesOption.ExportAll;

exporter.RunExport(sFilepath);

}

catch (Exception)

{

throw;

}

}

Thanks for your help.
Best wish
Elver Cano

GridView

answered on 16 Sep 2019

7 answers

451 views

Shadows of RadForm

Hi,

Is it possible to add shadows to my radforms ?

Thanks for your response

Form

answered on 13 Sep 2019

2 answers

535 views

Disable MultiColumn ComboBox from always selecting a value after information is added?

The MultiColumn ComboBox is always selecting a value after data is added to it. Is it possible to have it work almost exactly the same as the DropDownList?

For i As Integer = 1 To 12

Me.MultiColumnComboBox1.EditorControl.Rows.Add(i, "Row " & i)

Me.RadDropDownList1.Items.Add(i)

answered on 12 Sep 2019

3 answers

1.0K+ views

mouse hover

Hi Admin,

MouseHover - I want to open the one of form and once the mouse is moved away the form closes

Please tell to me how to do like that?

Thanks,

Moe

GridView

answered on 11 Sep 2019

1 answer

390 views

Virtual Grid Populating Custom Columns, Custom Filter

Dear Admins.

I was Using the following code for populating radGridView. But it was little bit slower (items Count was more then 40,000)

BindingSource source = new BindingSource

{

//GetItemTable Return the DataTable

DataSource = _ItemRepository.GetItemTable()

};

radGridView1.MasterTemplate.DataSource = source;

Then i give a try to use VirtualGrid (By using the Example given in the Documentation), to check the performance difference.it is good.

I have some question regarding presentation/ populating of VirtualGrid.

The ItemClass is used to populate the VirtualGrid have 15 columns(Attributes),

I want to load only some of them, Locating at different Column Numbers not in Sequence. Like i have Column Number from 1...15, I want to display only 1,3,6,10th Column Numbers(Index Numbers).
How to Hide any Column which is already populated in the Grid.
I want to make custom filter functionality. I Have a Text Box above the VirtualGrid. I want to use that TextBox to apply the Filter on the Grid by Typing the Item Name, and Grid filter the Number of items according the typed text and display in the grid.
How to Clear VirtualGrid rows.

I can use these functionalities by using the radGridView, but due to performance i want to use Virtual Grid.

I have achieved this behavior using the Microsoft DataGridView. But due to Conversion. I want to use all the controls only from telerik. (Using R2 2019 SP1)

If possible any working example will be appreciated.

VirtualGrid

answered on 11 Sep 2019