Questions on UI for WinForms Forum

1 answer

85 views

Telerick for WinForms VS2008 - new project/covert fails

Any help or insights appreciated. This is for the WinForms library for VS2008.

When I try to create a new Telerick project, or convert an existing project, it fails. I'll paste in the error log below.

Yes I know VS2008 is old and I should be using a newer version, but 2008 has features I really like, esp the MDI editor.

What I've tried (suggested from Progress support folks) :

- Uninstalled, reinstalled

- Uninstalled, manually uninstalled the DLLs from the GAC, reinstalled, rebooted

Thanks for any assistance

Error log:

An error has occured while trying to create a new project.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.VSX.DistributionListing.GACBasedDistribution.CheckAssemblyNamesEqual(AssemblyName assemblyName1, AssemblyName assemblyName2)
   at Telerik.VSX.DistributionListing.GACBasedDistribution.PopulateItems(DistributionItemList items)
   at Telerik.VSX.DistributionListing.Distribution.get_Items()
   at Telerik.VSX.Helpers.DesignAssemblyGacHelper.GetDesignerAssembliesMissingFromDistribution()
   at Telerik.VSX.Controls.DesignAssemblyChecker.DetermineViewState(String mainAssemblyLoadInfo, WizardContext context)
   at Telerik.VSX.Controls.DesignAssemblyChecker.UpdateViewState(String mainAssemblyLoadInfo, WizardContext context)
   at Telerik.VSX.Controls.DesignAssemblyChecker.ReInit(IPropertyDataDictionary allPropertyValues, WizardContext context)
   at Telerik.VSX.WizardEngine.Controls.WizardControlBase.Telerik.WizardFramework.ScenarioDriven.IWizardControl.ReInit(IPropertyDataDictionary allPropertyValues, IWizardContext context)
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.Control_SyncNeeded(Object sender, EventArgs e)
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.EnsureSync()
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.Control_SyncNeeded(Object sender, EventArgs e)
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.EnsureSync()
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.Control_SyncNeeded(Object sender, EventArgs e)
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.EnsureSync()
   at Telerik.VSX.WizardFramework.Pages.DynamicPageController.Init(IWizardPageDef pageDefinition, IWizardContext wizardControlContext, IPropertyDataDictionary allGatheredData)
   at Telerik.WizardFramework.ScenarioDriven.ScenarioWizard.OnBeforeShow(Boolean movingNext)
   at Telerik.WizardFramework.Wizard.EnsureInitialized()
   at Telerik.WizardFramework.ScenarioDriven.ScenarioWizard..ctor(IWizardContext wizardControlContext, IDispatcher dispatcher, IWizardUI ui, PageCreator createPage)
   at Telerik.VSX.WizardEngine.ScenarioManagement.ScenarioDefinitionExecutor.CreateWizard(IWizardContext wizardControlContext, IDispatcher dispatcher, IWizardUI ui)
   at Telerik.VSX.WizardEngine.ScenarioManagement.ScenarioDefinitionExecutor.CollectData(IDispatcher dispatcher)
   at Telerik.VSX.WizardEngine.ScenarioManagement.ScenarioDefinitionExecutor.CollectData()
   at Telerik.VSX.ProjectConfiguration.DiscontinuousProjectConfiguration.TryCollectData()

General Discussions

answered on 24 Aug 2018

0 answers

195 views

How to handle the width of customized items?

I want to develop a WinForms application which is similar with Outlook. For the email list part, I use the custom item in the ListView to display the email information(From, Subject, Receive Time, Body Content). The ListView control is inside a split container(Dock Fill). So that, user can change the width of ListView.

The problem is, when the subject or body content is very long, I don't want the item to auto size. I want the item hidden the text when overflow. When user changes the width of ListView via split container, the text can be shown more or less according to the width of ListView. It likes in the outlook, you can change the width of the email list, the body content and the subject can be automatically displayed to fit the width. How to implement this function by using ListView?

My custom item as below:

private class MailListVisualItem : SimpleListViewVisualItem

{

private LightVisualElement element1;

private LightVisualElement element2;

private StackLayoutPanel layout;

protected override void CreateChildElements()

{

base.CreateChildElements();

this.layout = new StackLayoutPanel();

this.layout.EqualChildrenWidth = false;

this.layout.Margin = new Padding(20, 0, 0, 0);

this.element1 = new LightVisualElement();

element1.TextAlignment = ContentAlignment.TopLeft;

element1.Size = new Size(260, 0);

element1.MinSize = new Size(260, 0);

element1.NotifyParentOnMouseInput = true;

element1.ShouldHandleMouseInput = false;

this.layout.Children.Add(this.element1);

this.element2 = new LightVisualElement();

element2.TextAlignment = ContentAlignment.TopLeft;

element2.Size = new Size(80, 0);

element2.NotifyParentOnMouseInput = true;

element2.ShouldHandleMouseInput = false;

this.layout.Children.Add(this.element2);

this.Children.Add(this.layout);

}

protected override void SynchronizeProperties()

{

base.SynchronizeProperties();

if (this.Data.GetType() != typeof(ListViewDataItemGroup))

{

this.Text = "";

var bodyText = this.Data["BodyText"] == null ? "" : this.Data["BodyText"].ToString().Replace(System.Environment.NewLine, " ");

this.element1.Text = "<html>" +

"<span style=\"font-size:12\">" + this.Data["From"] + "" +

" <span style=\"color:#13224D;font-family:Segoe UI;font-size:10\">" + this.Data["Subject"] + "" +

" <span style=\"color:#13224D;font-family:Segoe UI;font-size:10\">" + bodyText + "</html>";

this.element2.Text = "<html> " +

" <span style =\"color:#13224D;font-family:Segoe UI;font-size:10\">" + this.Data["ReceivedTime"] + "</html>";

this.TextAlignment = ContentAlignment.TopLeft;

}

protected override Type ThemeEffectiveType

{

get

{

return typeof(SimpleListViewVisualItem);

}

ListView

asked on 24 Aug 2018

14 answers

644 views

NullText Property doesn't work in RadDropDown

this.RadDropDownList_LocationType.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDownList;

this.RadDropDownList_LocationType.Location = new System.Drawing.Point(4, 4);

this.RadDropDownList_LocationType.Name = "RadDropDownList_LocationType";

this.RadDropDownList_LocationType.NullText = "Please Select";

this.RadDropDownList_LocationType.Size = new System.Drawing.Size(123, 18);

this.RadDropDownList_LocationType.TabIndex = 0;

When I Use RadComboBox instead RadDropDown property works.

DropDownList

answered on 24 Aug 2018

3 answers

214 views

[Solved] Chanage page background color in print layout

In demo project if I set radRichTextEditor1.RichTextBoxElement.BackColor = Color.Aqua in constructor I see the background color changed in web layout. But in print layout only the color of the background behind the pages is changed. How to change the color of the pages too?

RichTextEditor

answered on 23 Aug 2018

6 answers

110 views

[Solved] VisualStudio2012Light Theme increased height

Hey guys,my entire application is using VisualStudio2012Light theme of telerik 2015 and it's ok, the problem is when I upgrade to 2018, because it has increased size, and most of my controls get over each other. Can someone give me a version of this theme without the increased size? I want to use 2018 theme version because of clear buttons and etc...

Themes and Visual Style Builder

answered on 23 Aug 2018

3 answers

260 views

Can't display preview of value in RadPropertyGrid when SelectedObject is ICustomTypeDescriptor

Hi!

I am trying to replace standart winforms PropertyGrid, which actually does the job, by RadPropertyGrid but faced up with an issue. Editing object contains string typed property, which stores value of a color, also there is custom editor based on UITypeEditor which should render the value inside property grid. In debug I see that in case of RadPropertyGrid, methods of my editor are not invoked and thus no rendering happens, while everything works ok with standart property grid. How may I make it work with RadPropertyGrid?

Considering that a code base, I'm working is deep legacy, I tried to create a symplified sample app that demonstrates a use case in our app, described upstairs.
https://github.com/vklu4itesvet/ICustomTypeDescriptor-advantures/tree/master/TelerikPropertyGrid
here is the code

PropertyGrid

answered on 22 Aug 2018

9 answers

477 views

Property display name

Hello, does anyone knows a way to let the RadDataFilter to show the "DisplayName" of a property (as taken from a resource file) instead of the property name in unbound mode so that I do not have to write my own parser to convert the expression between "display" and "property" ?

[Display(Name = "DATAARR_DisplayProp", Description="DATAARR_zz_tooltip_", ResourceType=typeof(Warehouse.Magany2.loc.PKLIST_LOCALI))]

public Nullable<DateTime> DATAARR

{

get;

set;

}

See attached image

Best Regards

Andrea

DataFilter

answered on 22 Aug 2018

25 answers

1.2K+ views

Grid - SelectedRows Remove

Hi

I need to remove the selectedRows in a Radgrid. I used the following code:

GridViewSelectedRowsCollection RowCollection = m_radGridSource.SelectedRows;

foreach (GridViewRowInfo GridDataRow in RowCollection)

{

m_radGridSource.Rows.Remove(GridDataRow

as GridViewDataRowInfo);

}

But exception was thrown as enumerator modified.

Please let me know how ro remove selected rows.

Sangeetha.

GridView

answered on 20 Aug 2018

1 answer

1.0K+ views

[Solved] Disable print dialog and print settings dialog from print preview dialog

I have a rich text editor with rubber bar (playing with Telerik's demo project), and I would like to disable the user from changing printer settings (and to change the printer in particular). So, for plain print I have this code (please correct me if there's a better way):

private void radRichTextEditor1_CommandExecuting(object sender, CommandExecutingEventArgs e)

{

if (e.Command is PrintCommand)

{

e.Cancel = true;

radRichTextEditor1.Print(false);

}

But how to prevent the print dialog from print preview dialog? Also, how to prevent print settings dialog as well? Ideally I would like the print button to just print immediately, and print settings button to disappear.

RichTextEditor