Uwp override selected text color
Protected override void CreateChildElements()ĬustomText.GradientStyle = GradientStyles.Solid ĬustomText.TextAlignment = ContentAlignment.MiddleLeft
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Void CustomEditorElement_PopupClosing(object sender, RadPopupClosingEventArgs args)ĬustomEditorElement editor = (CustomEditorElement)sender Void CustomEditorElement_CreatingVisualItem(object sender, CreatingVisualListItemEventArgs args)Īrgs.VisualItem = new CustomListVisualItem() Private void CustomEditorElement_ItemDataBinding(object sender, ListItemDataBindingEventArgs args) GridDataCellElement cell = this.Parent as GridDataCellElement Void closeButton_Click(object sender, EventArgs e) Protected override void SyncVisualProperties(RadListDataItem listItem) Private void SetItemsCheckSelect(bool value)įoreach (CustomListDataItem item in this.Items) Private void selectAll_Click(object sender, EventArgs e) Private void deselectAll_Click(object sender, EventArgs e) += this.CustomEditorElement_ItemDataBinding This.CreatingVisualItem += new CreatingVisualListItemEventHandler(CustomEditorElement_CreatingVisualItem) This.PopupClosing += new RadPopupClosingEventHandler(CustomEditorElement_PopupClosing) Public class CustomEditorElement : RadDropDownListEditorElementĬloseButton = new RadButtonElement("Close") ĬloseButton.SetValue(DockLayoutPanel.DockProperty, Dock.Bottom) ĬloseButton.Click += new EventHandler(closeButton_Click) In the CreateChildElements override, we will initialize and add the LightVisualElement which will hold the text.Īnother useful override we have to add is the the one of the ShowPopup method, where prior calling the base functionality we will save the selected items and restore them after.įinally, we will create a method that fires the OnTextChanged event, used to set the element's text accordingly: ItemDataBinding - replace the default data item with a custom one PopupClosing - here we will cancel the popup closure when it contains mouse so we can use it to select itemsĬreatingVisualItem - here replace the default visual item with a custom one We will also subscribe to the following events: Next, we will set the SelectionMode to MultiSimple, which means that the users will be able to select item with mouse click or space button. We will also subscribe to its click, where we will close the popup. Now, we have to create the CustomEditorElement. In the element's constructor we will first initialize the close button and add it accordingly to the sizing grip of the popup. Public Shadows ReadOnly Property Items() As RadListDataItemCollection Protected Overrides Function CreateDropDownListElement() As RadDropDownListElement Public Overrides Property ThemeClassName() As String Public new RadListDataItemCollection Items Protected override RadDropDownListElement CreateDropDownListElement() Public class CustomDropDownList : RadDropDownList We should override the ThemeClassName in order to allow the control to use the RadDropDownList theme and the CreateDropDownListElement, where we will return an instance of a CustomEditorElement and will define the collection editor for our items at design time, so we can add our custom items: Solutionįirst, we will start by creating CustomDropDownList, which inherits from RadDropDownList.
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All previous functionality is preserved, such as visual formatting and data binding, which is now extended.
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This article will guide to through the process of extending the functionality of RadDropDownList to support multi selection with check boxes.Īs of Q3 2014 (version 20) Telerik UI for WinForms suite offers RadCheckedDropDownList control which combines RadDropDownList and RadAutoCompleteBox in order to provide functionality to check items in the drop down area and tokenize them in the text area.
UWP OVERRIDE SELECTED TEXT COLOR CODE
The below code snippet illustrates the same.Download free 30-day trial Multi select drop down list Date Postedīy default, RadDropDownList does not support selecting multiple items out of the box. The property SelectionColor in the TextSelectionSettings class of PdfViewerControl can be used to customize them. The color used for text selection and the color of the handle can be customized. Using mouseġ) To mouse pointer will be changed to the text selection pointer when pointed over the text region.Ģ) Place the mouse pointer on the text area and click the mouse left button and drag the mouse pointer over the text to select the text in any direction. Using touch gesturesġ) Tap over the texts in the page, the tapped word will be selected and two bubbles will be displayed on each end.Ģ) Tap and drag the left bubble to select the text at the left and top, and the right bubble to select the text at the right and bottom directions.
UWP OVERRIDE SELECTED TEXT COLOR HOW TO
IsTextSelectionEnabled = false How to select text?įollow below steps to select text in the PDF file. Text selection feature in the PDF Viewer is disabled.