[WPF] Access view control from viewmodel

 

https://dlsenfl.tistory.com/entry/WPF-control-in-viewModel

[WPF] ***** control in viewModel

 

 

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public interface IView 
{
    void AddTextBoxToGrid();
}

2) Inherit code behind View from your IView and implement IView.AddTextboxToGrid() method

public partial class View: IView 
{
    public void AddTextBoxToGrid() 
    {  
        // implement here your custom view logic using standard code behind; 
    }
}

3) Add a property of type IView to your VM

public class ViewModel 
{
    public IView View { get; set; }
}

 

4) Set View property on VM to an instance of View as IView e.g. in code behind:

public partial class View: IView 
{
    public View()
    {
        // access you VM by the strategy of your framework or choice - this example is when you store your VM in View's DataContext
        (DataContext as ViewModel).View = this as IView;
    } 

    public void AddTextBoxToGrid() 
    {  
        // implement here your custom view logic using standard code behind; 
    }
}

5) In your VM call IView.AddTextboxToGrid()

public class ViewModel 
{
    public IView View { get; set; }

    public void AddTextBoxToGrid() 
    {
        if (View == null) return;
        View.AddTextBoxToGrid()
    }
}

 

 

 

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https://stackoverflow.com/questions/14236222/how-can-i-access-a-control-in-mvvm-model-in-viewmodel

How can i access a control in mvvm model in viewmodel?

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