I want to pass the Id of the viewmodel as a commandparameter using a popup

Ronald Rex 1,666 Reputation points
2023-05-31T13:45:32.6766667+00:00

Hi Friends,

I want to pass the Id of the viewmodel class as a commandparameter using a popup. Thanks !


View Model


[RelayCommand]
	async Task UpdateUdf()
	{
    
    }

	

XAML


<toolkit:Popup   
  xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
  xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
  xmlns:sf ="clrnamespace:Syncfusion.Maui.Core;assembly=Syncfusion.Maui.Core"
  xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"
  x:Class="DesktopUserInterface.Views.EditUserDefinedFieldPopupView"
                 xmlns:local="clr-namespace:DesktopUserInterface.ViewModel"
                 x:DataType="local:PayerEditViewModel"
                 CanBeDismissedByTappingOutsideOfPopup="False"
                 VerticalOptions="Fill">
 
 
                      
                       
<Button   Text= "OK"   Command="{Binding UpdateUdfCommand}" />
                     
</toolkit:Popup>


.NET MAUI
.NET MAUI
A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
3,206 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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Accepted answer
  1. Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 29,046 Reputation points Microsoft Vendor
    2023-06-01T07:59:02.0733333+00:00

    Hello,

    You are using [RelayCommand], it's a third-party tool feature and not supported on Q&A. Please see Commanding - .NET MAUI | Microsoft Learn.

    I want to pass the Id of the viewmodel class as a commandparameter using a popup.

    You can refer to the following code:

    ViewModel (Adding ID property of the viewmodel class)

    public class PayerEditViewModel
    {
        public string ID { get; set; }// ID property
        public ICommand UpdateUdfCommand { private set; get; }
        public PayerEditViewModel()
        {
            UpdateUdfCommand = new Command<String>(UpdateUdf);
        }
        private void UpdateUdf(String ID)
        {// commandparameter
    
        }
    
    }
    

    XAML of EditUserDefinedFieldPopupView

      <VerticalStackLayout>
            <Button  Text= "OK"  Command="{Binding UpdateUdfCommand}" CommandParameter="{Binding ID}" />
        </VerticalStackLayout>
    

    Code Behind

    public EditUserDefinedFieldPopupView(PayerEditViewModel vm)
        {
            InitializeComponent();
            this.BindingContext = vm;
        }
    

    Presenting this Popup in MainPage

    private void OnCounterClicked(object sender, EventArgs e)
        {
            var ViewModel = new PayerEditViewModel();
            ViewModel.ID = "111";
            var popup = new EditUserDefinedFieldPopupView(ViewModel);
            this.ShowPopup(popup);// then you could click the "OK" button to check if "111" has been passed
        }
    

    Best Regards,

    Wenyan Zhang


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