From db02e929420404efedc135ce2d4feac304713681 Mon Sep 17 00:00:00 2001 From: KB Bot Date: Fri, 27 Sep 2024 09:10:30 +0000 Subject: [PATCH 1/3] Added new kb article gridview-combobox-popup-width-longest-text --- ...dview-combobox-popup-width-longest-text.md | 75 +++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 knowledge-base/gridview-combobox-popup-width-longest-text.md diff --git a/knowledge-base/gridview-combobox-popup-width-longest-text.md b/knowledge-base/gridview-combobox-popup-width-longest-text.md new file mode 100644 index 000000000..d0f7a06fa --- /dev/null +++ b/knowledge-base/gridview-combobox-popup-width-longest-text.md @@ -0,0 +1,75 @@ +--- +title: Adjusting Font Size and Width of ComboBox in RadGridView for WinForms +description: Learn how to customize the font size and dropdown width of a ComboBox column in RadGridView for WinForms to match your UI requirements. +type: how-to +page_title: How to Customize ComboBox Column Appearance in RadGridView for WinForms +slug: gridview-combobox-popup-width-longest-text +tags: gridview, dropdownlisteditor, font, width, combobox, longest text +res_type: kb +ticketid: 1665670 +--- + +## Environment + +|Product Version|Product|Author| +|----|----|----| +|2024.3.806|RadGridView for WinForms|[Dinko Krastev](https://www.telerik.com/blogs/author/dinko-krastev)| + +## Description + +Adjusting the font size of the ComboBox on a dropdown grid in RadGridView is essential for aligning it with the rest of the grid's appearance. Additionally, customizing the width of the ComboBox dropdown grid to accommodate the longest text or to a specified width enhances the UI experience. This KB article also answers the following questions: +- How can I change the font size of a dropdown in RadGridView? +- Is it possible to auto-adjust the width of a ComboBox dropdown in RadGridView to fit the longest item? +- Can I set a fixed width for the dropdown of a GridViewComboBoxColumn? + +## Solution + +To customize the font size of the ComboBox in a GridViewComboBoxColumn, handle the `CellEditorInitialized` event of RadGridView. Access the `EditorElement` of the active editor and modify the `Font` property of the `ListElement`. + +```vb +Private Sub radGridView1_CellEditorInitialized(ByVal sender As Object, ByVal e As GridViewCellEventArgs) + Dim editor As RadDropDownListEditor = TryCast(e.ActiveEditor, RadDropDownListEditor) + + If editor Is Nothing Then + Return + End If + + Dim element As RadDropDownListElement = TryCast(editor.EditorElement, RadDropDownListEditorElement) + element.ListElement.Font = New Font(element.Font.FontFamily, 16) +End Sub +``` + +For adjusting the width of the dropdown to either auto width based on the longest text or to a set width, implement custom logic within the `CellEditorInitialized` event. Use the `AutoSizeItems` property and measure the text size of each item to determine the dropdown width. + +```vb +Private Sub radGridView1_CellEditorInitialized(ByVal sender As Object, ByVal e As GridViewCellEventArgs) + Dim editor As RadDropDownListEditor = TryCast(e.ActiveEditor, RadDropDownListEditor) + + If editor Is Nothing Then + Return + End If + + Dim element As RadDropDownListElement = TryCast(editor.EditorElement, RadDropDownListEditorElement) + element.AutoSizeItems = True + Dim scrollBarWidth As Integer = 0 + + If element.DefaultItemsCountInDropDown < element.Items.Count Then + scrollBarWidth = 35 ' Considering scrollbar width + End If + + For Each item As RadListDataItem In element.Items + Dim text As String = item.Text + Dim size As Size = TextRenderer.MeasureText(text, element.ListElement.Font) + + If element.DropDownWidth < size.Width Then + element.DropDownWidth = size.Width + scrollBarWidth + End If + Next +End Sub +``` + + +## See Also + +- [GridViewComboBoxColumn](https://docs.telerik.com/devtools/winforms/controls/gridview/columns/column-types/gridviewcomboboxcolumn) +- [Customizing Appearance](https://docs.telerik.com/devtools/winforms/controls/gridview/styling-and-appearance/styling-and-appearance) From d4fa64560d18bdf94d2066335020c01980d6d7bf Mon Sep 17 00:00:00 2001 From: Dinko Krastev Date: Fri, 27 Sep 2024 12:21:31 +0300 Subject: [PATCH 2/3] Update gridview-combobox-popup-width-longest-text.md --- ...dview-combobox-popup-width-longest-text.md | 90 ++++++++----------- 1 file changed, 39 insertions(+), 51 deletions(-) diff --git a/knowledge-base/gridview-combobox-popup-width-longest-text.md b/knowledge-base/gridview-combobox-popup-width-longest-text.md index d0f7a06fa..ea60ed17a 100644 --- a/knowledge-base/gridview-combobox-popup-width-longest-text.md +++ b/knowledge-base/gridview-combobox-popup-width-longest-text.md @@ -1,8 +1,8 @@ --- -title: Adjusting Font Size and Width of ComboBox in RadGridView for WinForms -description: Learn how to customize the font size and dropdown width of a ComboBox column in RadGridView for WinForms to match your UI requirements. +title: Adjusting GridViewComboBoxColumn Editor DropDown Width to the Longest Text in RadGridView +description: Learn how to customize the dropdown width of a GridViewComboBoxColumn editor to match the longest item text width. type: how-to -page_title: How to Customize ComboBox Column Appearance in RadGridView for WinForms +page_title: How to Customize GridViewComboBoxColumn Editor in RadGridView for WinForms slug: gridview-combobox-popup-width-longest-text tags: gridview, dropdownlisteditor, font, width, combobox, longest text res_type: kb @@ -17,57 +17,45 @@ ticketid: 1665670 ## Description -Adjusting the font size of the ComboBox on a dropdown grid in RadGridView is essential for aligning it with the rest of the grid's appearance. Additionally, customizing the width of the ComboBox dropdown grid to accommodate the longest text or to a specified width enhances the UI experience. This KB article also answers the following questions: -- How can I change the font size of a dropdown in RadGridView? -- Is it possible to auto-adjust the width of a ComboBox dropdown in RadGridView to fit the longest item? -- Can I set a fixed width for the dropdown of a GridViewComboBoxColumn? +By default, the dropdown part width of the GridViewComboBoxColumn will match the size of the column. This way, items with text bigger than the size of the column will be clipped. In this article, we will demonstrate how we can adjust the popup size to the longest item text in the dropdown. ## Solution -To customize the font size of the ComboBox in a GridViewComboBoxColumn, handle the `CellEditorInitialized` event of RadGridView. Access the `EditorElement` of the active editor and modify the `Font` property of the `ListElement`. - -```vb -Private Sub radGridView1_CellEditorInitialized(ByVal sender As Object, ByVal e As GridViewCellEventArgs) - Dim editor As RadDropDownListEditor = TryCast(e.ActiveEditor, RadDropDownListEditor) - - If editor Is Nothing Then - Return - End If - - Dim element As RadDropDownListElement = TryCast(editor.EditorElement, RadDropDownListEditorElement) - element.ListElement.Font = New Font(element.Font.FontFamily, 16) -End Sub -``` - -For adjusting the width of the dropdown to either auto width based on the longest text or to a set width, implement custom logic within the `CellEditorInitialized` event. Use the `AutoSizeItems` property and measure the text size of each item to determine the dropdown width. - -```vb -Private Sub radGridView1_CellEditorInitialized(ByVal sender As Object, ByVal e As GridViewCellEventArgs) - Dim editor As RadDropDownListEditor = TryCast(e.ActiveEditor, RadDropDownListEditor) - - If editor Is Nothing Then - Return - End If - - Dim element As RadDropDownListElement = TryCast(editor.EditorElement, RadDropDownListEditorElement) - element.AutoSizeItems = True - Dim scrollBarWidth As Integer = 0 - - If element.DefaultItemsCountInDropDown < element.Items.Count Then - scrollBarWidth = 35 ' Considering scrollbar width - End If - - For Each item As RadListDataItem In element.Items - Dim text As String = item.Text - Dim size As Size = TextRenderer.MeasureText(text, element.ListElement.Font) - - If element.DropDownWidth < size.Width Then - element.DropDownWidth = size.Width + scrollBarWidth - End If - Next -End Sub -``` - +To customize the GridViewComboBoxColumn editor, handle the `CellEditorInitialized` event of RadGridView. For adjusting the width of the dropdown to either auto width based on the longest text or to a set width, implement custom logic within the `CellEditorInitialized` event. Use the `AutoSizeItems` property and measure the text size of each item to determine the dropdown width. + +````C# +private void radGridView1_CellEditorInitialized(object sender, GridViewCellEventArgs e) +{ + RadDropDownListEditor editor = e.ActiveEditor as RadDropDownListEditor; + if (editor == null) + { + return; + } + + RadDropDownListElement element = editor.EditorElement as RadDropDownListEditorElement; + element.AutoSizeItems = true; + + int scrollBarWidth = 0; + + if (element.DefaultItemsCountInDropDown < element.Items.Count) + { + scrollBarWidth = 35; + } + + foreach (RadListDataItem item in element.Items) + { + string text = item.Text; + item.TextAlignment = ContentAlignment.MiddleCenter; + Size size = TextRenderer.MeasureText(text, element.ListElement.Font); + + if (element.DropDownWidth < size.Width) + { + element.DropDownWidth = size.Width + scrollBarWidth; + } + } +} + +```` ## See Also From db22111ed7f4146832525d448f8f2a03ea13e7ec Mon Sep 17 00:00:00 2001 From: Nadya Todorova <48494959+nade7o@users.noreply.github.com> Date: Tue, 1 Oct 2024 15:14:06 +0300 Subject: [PATCH 3/3] Update gridview-combobox-popup-width-longest-text.md --- knowledge-base/gridview-combobox-popup-width-longest-text.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/knowledge-base/gridview-combobox-popup-width-longest-text.md b/knowledge-base/gridview-combobox-popup-width-longest-text.md index ea60ed17a..304d1d5db 100644 --- a/knowledge-base/gridview-combobox-popup-width-longest-text.md +++ b/knowledge-base/gridview-combobox-popup-width-longest-text.md @@ -17,7 +17,7 @@ ticketid: 1665670 ## Description -By default, the dropdown part width of the GridViewComboBoxColumn will match the size of the column. This way, items with text bigger than the size of the column will be clipped. In this article, we will demonstrate how we can adjust the popup size to the longest item text in the dropdown. +By default, the width of the dropdown popup in the GridViewComboBoxColumn will match the size of the column. This way, items which text is bigger than the size of the column will be clipped. In this article, we will demonstrate how we can adjust the popup size to the longest item text in the dropdown. ## Solution