How to Call a Button Click Event from Another Method

How to call a button click event from another method

You can call the button_click event by simply passing the arguments to it:

private void SubGraphButton_Click(object sender, RoutedEventArgs args)
{
}

private void ChildNode_Click(object sender, RoutedEventArgs args)
{
   SubGraphButton_Click(sender, args);
}

How to call a button click event when i click another button in c#

I'd suggest removing the logic from behind the click events into separate methods.

private void MethodOne()
{
    progressBar1.Value = 0;
    String[] a = textBox7.Text.Split('#');
    progressBar1.Maximum = a.Length;
    for (var i = 0; i <= a.GetUpperBound(0); i++)
    {
        ansh.Close();
        progressBar1.Value++;
    }
}

private void MethodTwo()
{
    foreach (string item in listBox2.Items)
        textBox7.Text += item.Contains("@") ? string.Format("{0}#", item.Split('@')[0]) : string.Empty;
}

private void button1_Click(object sender, EventArgs e)
{
    MethodTwo();
    MethodOne();
}

private void button2_Click(object sender, EventArgs e)
{
    MethodTwo();
}

In my experience, it's easier to maintain and test this way. Having different controls' events all calling each other makes it tougher to follow the logic.

How to call a method from another class in a button click event?

Your two choices are based on whether or not you want a new instance of ListDisplay when you click the button or not.

Option 1:

namespace Project
{
    public partial class AddTask : Form
    {
        private void btnSubmit_Click(object sender, EventArgs e)
        {
            var ld = new ListDisplay();
            ld.Show();
            ld.LoadingListBox();
        }
    }
}

Option 2:

namespace Project
{
    public partial class AddTask : Form
    {
        private ListDisplay _ld;
        public AddTask(ListDisplay ld)
        {
            _ld = ld;
        }

        private void btnSubmit_Click(object sender, EventArgs e)
        {
            _ld.LoadingListBox();
        }
    }
}

Button click event with two methods which execute one after another by timer

Use an async Click event handler with await Task.Delay:

// class member
private TimeSpan clickActionDelay = TimeSpan.FromSeconds(3);

private async void Button_Click(object sender, RoutedEventArgs e)
{
    var button = (Button)sender;
    button.IsEnabled = false;

    firstAction();

    // wait 3 seconds without blocking the UI thread
    await Task.Delay(clickActionDelay);

    secondAction();

    button.IsEnabled = true;
}

private void firstAction()
{
    ...
}

private void secondAction()
{
    ...
}

calling button click function from another class

as stuartd said you can add a call to your parent Form:

public partial class InfoSettings : UserControl
{
    public InfoSettings()
    {
        InitializeComponent();
    }

    private void settingBtn_Click(object sender, EventArgs e)
    {
        Form1 form1 = (Form1) this.Parent;
        form1.buttonHandler(sender);
    }
}

Calling a button click event in another function iOS objective-c

your button action has a parameter , so you need to append in the parameter as nil or self.do like

- (void)checkStatus{
if(somecondition){
  [self save:nil];
}
}

calling another function after finishing button click function in jQuery

Here is one way to do it:
You define an action for the button click. In my example I created a promise with a setTimeout() call. This could be an Ajax call or anything else (not necessarily returning a promise). As soon as the action is done or the promise fulfilled, func2 will step into action.

$("#btn-click").click(func1);

function func1(){
  console.log("func1 started...");
  $.when(new Promise(res=>
setTimeout(res,1000)))
   .then(()=>{
     console.log("func1 done.");
     func2()});
} 

function func2() {
  console.log("func2");
}

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<button id="btn-click">click</button>

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim f2 As New Form2
    AddHandler f2.Shown, Sub()
                             f2.Button2.PerformClick()
                         End Sub
    f2.ShowDialog()
End Sub