I have a Windows Forms Link Label, "Refresh", that refreshes the display.
In another part of my code, part of a separate windows form, I have a dialog that changes the data loaded into the display in the first place. After executing this other code, pressing "Refresh" updates the data correctly.
Is there a simple way for the dialog menu to "click" the "refresh" Link Label after it has finished altering the data?
Using Visual Studio 2008.
For button is really simple, just use:
button.PerformClick()
Anyway, I'd prefer to do something like:
private void button_Click(object sender, EventArgs e)
{
DoRefresh();
}
public void DoRefresh()
{
// refreshing code
}
and call DoRefresh() instead of PerformClick()
EDIT (according to OP changes):
You can still use my second solution, that is far preferable:
private void linkLabel_Click(object sender, EventArgs e)
{
DoRefresh();
}
public void DoRefresh()
{
// refreshing code
}
And from outside the form, you can call DoRefresh() as it is marked public.
But, if you really need to programmatically generate a click, just look at Yuriy-Faktorovich's Answer
You could call the PerformClick method. But Generally it is better to have the Click event of the button call a Refresh method you write. And the menu call that method as well. Otherwise your menu depends on the button being there.
Edit:
A LinkLabel implements the IButtonControl explicitly. So you could use:
((IButtonControl)button).PerformClick();
you can use a method to refrech display, the bouton_click and the dialogBox call this method
public void refrechDate()
{
}
private void button_click(...)
{
refrechData();
}
private void MyMethod()
{
// ...
// calling refresh
this.button1_Click(this.button1, EventArgs.Empty);
// ...
}
private void button1_Click(object sender, EventArgs e)
{
// refresh code
}
Related
So this is a fairly straightforward thing, and I am just curious if there is a better way to do it to save lines of code. For class we are making a teletype machine. Basically there is a textbox, and a series of buttons A-Z and 0-9. When you click the button it adds the corresponding letter/number to the textbox. When you click send, it adds the contents of the textbox to a label and resets the textbox. Everything works and it only took a few minutes to build. However there is a mess of redundant lines and I was curious if there is a way to clean up the code with a method.
This is my current code.
private void btn_A_Click(object sender, EventArgs e)
{
box_UserInput.Text = box_UserInput.Text + "A";
}
As you can see, it is very simplistic and straight forward. Click A, and "A" gets added to the textbox. However the Text property of the button is also just "A" and I want to know if there is a way to just copy the text property of that button and add it to the textbox string.
Something like this, except with a universal approach where instead of having to specify btn_A it just inherits which button to copy based on the button clicked. That way I can use the same line of code on every button.
private void btn_A_Click(object sender, EventArgs e)
{
box_UserInput.Text = box_UserInput.Text + btn_A.Text;
}
You can use this which is more universal as the Control class contains the Text property. Also, using the best practice $"".
private void btn_A_Click(object sender, EventArgs e)
{
box_UserInput.Text = $"{box_UserInput.Text}{((Control)sender).Text}";
}
You can also assign the same event to each button. Create an event, say addControlTextOnClick and assign the same event to each button.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void addControlTextOnClick(object sender, EventArgs e)
{
box_UserInput.Text = $"{box_UserInput.Text}{((Control)sender).Text}";
}
}
You can even shorten this more using this C# construct:
private void addControlTextOnClick(object sender, EventArgs e) =>
box_UserInput.Text = $"{box_UserInput.Text}{((Control)sender).Text}";
Hi StackOverflow Community,
I have this code on CodeBehind:
protected void Btn_Search_Function(object sender, EventArgs e)
{
GV_Results.PageIndex = 0;
GV_Results.DataBind();
hdnSelectedTab.Value = "1";
}
This code is executed when I click a LinkButton. I want to call this function when another method (in the same page) finishes executing.
But I don't know what arguments to pass as object sender and EventArgs e. What is the best approach to achieve this?
Thank you in advance,
Best regards.
Ok so after 5 minutes I had the idea of creating a third method that would be called both by the function that is called when I click the LinkButton, and by the method I want to execute the same code.
I'm open to better ways of achieving this.
So, it is has follows:
protected void Btn_Search_Function(object sender, EventArgs e)
{
SearchFunction();
}
private void SearchFunction()
{
GV_Results.PageIndex = 0;
GV_Results.DataBind();
hdnSelectedTab.Value = "1";
}
If you have a button called Btn_Search and you have created an event handler for the button click event Btn_Search_Click(object sender, EventArgs e).
then, in your another method you can call like:
public void my_function()
{
//This simulates the button click from within your code.
Btn_Search_Click(Btn_Search, EventArgs.Empty);
}
or
Btn_Search_Click(null, EventArgs.Empty);
or for your function
Btn_Search_Function(null, EventArgs.Empty)
I am pretty new to Gtk#, so please be patient. I want to create my own widget which will have two functions: draw what you want, and report if user clicked at this widget.
My code in method:
protected override bool OnExposeEvent (Gdk.EventExpose args)
{
// this works!
}
is fully working, but the code in following method:
protected override bool OnButtonPressEvent (Gdk.EventButton ev)
{
// this is not working at all :-(
Console.WriteLine("test!");
return base.OnButtonPressEvent (ev);
}
is not working. Both methods are some responses on events, so why OnButtonPressEvent is not called when I click at widget??
I have another widget which inherits from Table, but Buttons in Table works well, so why is there this problem?
Thanks in advance...
You have to create a signal to your button like this:
Button button = new Button();
button.Clicked += Button_Clicked;
private void Button_Clicked(object sender, EventArgs e)
{
//some stuff
}
It will work correctly. This is the way you must use Button widget. Sometimes it's depending how you layout your app, some widgets can be on your button and it can make unwanted behaviors.
You want to use Button Clicked signal instead of Button Pressed. That's what I use with all of my buttons and it works as expected.
I need to send a click event to refreshToolStripMenuItem from another form. Here is what I have, for some reason it doesn't work. Help please.
Menu item click:
public void refreshToolStripMenuItem_Click(object sender, EventArgs e)
{
noteslist.Items.Clear();
idlist.Items.Clear();
setnotes();
}
Code used to send event:
frmnotes notes = new frmnotes();
notes.refreshToolStripMenuItem_Click(this, e);
this.Close();
Dont call the event itself.
It's bad code.
Put the create an own protected void updateMyList() Method.
internal void updateMyList()
{
noteslist.Items.Clear();
idlist.Items.Clear();
setnotes();
}
Then call the update-method from within your event.
private void refreshToolStripMenuItem_Click(object sender, EventArgs e)
{
updateMyList();
}
Then simply call the update-method from your form:
frmnotes notes = new frmnotes();
notes.updateMyList();
this.Close();
Btw.: Set the modifier of your Click events i.e. refreshToolStripMenuItem_Click to private.
You never should call them from outside the form.
Take a look at the MVC pattern for more info. It really helps.
I have an element with a Click method.
I would like to activate that method (or: fake a click on this element) within another function.
Is this possible?
No, there currently isnt a way to do this. See links:
https://stackoverflow.com/questions/4137528/ui-automation-for-wp7
windows phone 7: How to simulate control click programmatically
EDIT
This doesnt do exactly what you wanted to do, but you can do something like this and get the same outcome. I do this type of pattern alot in my code to do get the same outcome.
XAML
<Button Name="testClick" Click="testClick_Click">
<TextBlock Text="Click Me"></TextBlock>
</Button>
C#
private void testClick_Click(object sender, RoutedEventArgs e)
{
TestFunction(sender as Button);
}
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
//Call same function as button
TestFunction(testClick);
}
private void TestFunction(Button bt)
{
//do stuff
}
Somewhere in your class initiate a RoutedEventArgs:
private RoutedEventArgs evnt;
Then later call this:
element_Click(element, evnt);
That should do it.