DataFormView.AllowCollapseGroups Property

Specifies whether users can collapse and expand groups of editors.

Namespace: DevExpress.XamarinForms.DataForm

Assembly: DevExpress.XamarinForms.Editors.dll

NuGet Package: DevExpress.XamarinForms.Editors

Declaration

public bool AllowCollapseGroups { get; set; }

Property Value

Type	Description
Boolean	true, to allow users to collapse/expand groups of editors; otherwise, false.

Example

This example demonstrates how to customize the data form’s editors, group headers, and row separators.

Before	After

1. Override resources to modify the appearance of the data form’s editors (hide edit box borders and the clear icon, and change placeholder and input text color).

2. Use the following properties of the data form:

   • IsEditorLabelVisible - to hide editor labels.
   • ContentPadding - to specify the distance between editors and form borders or group headers.
   • GroupHeaderPadding / GroupHeaderBackgroundColor / GroupHeaderTextColor - to adjust the appearance of group headers.
     AllowCollapseGroups - to prevent users from collapsing groups, and hide the collapse/expand icon from group headers.
   • RowSeparatorColor / RowSeparatorThickness / IsLastRowSeparatorVisible - to customize row separators.
   XAML

   <ContentPage
   xmlns="http://xamarin.com/schemas/2014/forms"
   xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
   xmlns:d="http://xamarin.com/schemas/2014/forms/design"
   xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
   xmlns:dxdf="http://schemas.devexpress.com/xamarin/2014/forms/dataform"
   xmlns:dxe="http://schemas.devexpress.com/xamarin/2014/forms/editors"
   xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
   mc:Ignorable="d"
   x:Class="DataFormExample.MainPage"
   ios:Page.UseSafeArea="True">
   
   <ContentPage.Resources>
       <CornerRadius x:Key="DXEditBaseCornerRadius">0</CornerRadius>
       <Thickness x:Key="DXEditBaseBoxPadding">0</Thickness>
       <x:Double x:Key="DXEditBaseBoxMinHeight">41</x:Double>
       <x:Double x:Key="DXEditBaseBorderThickness">0</x:Double>
       <x:Double x:Key="DXEditBaseFocusedBorderThickness">0</x:Double>
       <Color x:Key="DXEditBaseBorderColor">Transparent</Color>
       <Color x:Key="DXEditBaseFocusedBorderColor">Transparent</Color>
       <Color x:Key="DXEditBaseFilledBackgroundColor">Transparent</Color>
       <Color x:Key="DXEditBasePlaceholderColor">#9f9f9f</Color>
       <Color x:Key="DXEditBaseTextColor">#545454</Color>
       <dxe:IconVisibility x:Key="DXTextEditBaseClearIconVisibility">Never</dxe:IconVisibility>
   </ContentPage.Resources>
   
   <dxdf:DataFormView IsEditorLabelVisible="False"
                      ContentPadding="12,0"                   
                      GroupHeaderPadding="2,8"
                      GroupHeaderBackgroundColor="#e6e6e6"
                      GroupHeaderTextColor="#000000"
                      AllowCollapseGroups="False"
                      RowSeparatorColor="#aaaaaa"
                      RowSeparatorThickness="1"
                      IsLastRowSeparatorVisible="False"/>
   </ContentPage>
   

   View Example