Question

I have a userControl function that i want to set its action from the parent form.

I’ve already set userControl button action from that parent form.
and it worked like this :

in Form1.cs :

    public Form1()
    {
        InitializeComponent();
        fileManagerLocal1.SetSendButton(SendMethod);
    }
    private void SendMethod()
    {
        //whatever ...
    }

in userControl1.cs :

public void SetSendButton(Action action)
    {
        btnSend.Click += (s, e) => action();
    }

the code up works great.
but what i need is how do i set a Function action ..

in Form1.cs

public Form1()
    {
        InitializeComponent();
        fileTransfer1.RefreshLocalFM(RefreshFM);
    }

 public void RefreshFM()
    {
        fileManagerLocal1.btnRefresh.PerformClick();
    }

in userControl1.cs

 public void RefreshLocalFM(Action action)
    {
        action(); // what should be in here ?
    }

thanks in advance. 🙂

Answer 1

I’ve figured it out a solution ..

in Form1.cs :

public Form1()
{
    InitializeComponent();
    fileTransfer1.refreshAction = new Action (RefreshFM);
    //let's say refreshAction is a public action variable in fileTransfer1 class
}

public void RefreshFM()
{
    fileManagerLocal1.btnRefresh.PerformClick();
}

in userControl1.cs:

public Action refreshAction;
//then it can be called from any place.

private void RefreshLocalFM()
{
    refreshAction.Invoke(); //this fires the action that we initialized from form1.cs
}