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pit
Joined: 19 Aug 2008
Posts: 4
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 Posted: Tue Aug 19, 2008 8:33 am Post subject: How to change property form another form? |
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I created a MainForm and a Form in sepatete files. Then I imported the Form module in the MainForm. I manged only to open Form from Mainform but after that I would like to change properties of objects in MainForm by events performed in Form. Now only thing I can recieve is Access Violation.
How can I do that? |
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Chris Miller
Joined: 27 Mar 2004
Posts: 514
Location: The Internet
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| Posted: Thu Aug 21, 2008 3:46 pm Post subject: Re: How to change property form another form? |
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Did you create a new instance of the form?
| Code: | OtherForm other;
...
other = new OtherForm();
...
other.stuff(); // works now |
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pit
Joined: 19 Aug 2008
Posts: 4
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| Posted: Fri Aug 22, 2008 9:14 am Post subject: |
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Well, here's what I mean. All I want is to split a code into different files. I should have shown the code at the first post. The most important question for me is situated in the lines "//How to change ... from here ??".
File 1 - the main;
| Code: | /*
Generated by Entice Designer
Entice Designer written by Christopher E. Miller
www.dprogramming.com/entice.php
*/
import dfl.all;
import myform2.d;
class MyForm: dfl.form.Form
{
// Do not modify or move this block of variables.
//~Entice Designer variables begin here.
dfl.label.Label label1;
//~Entice Designer variables end here.
this()
{
initializeMyForm();
//@ Other MyForm initialization code here.
startMyForm2();
}
private void initializeMyForm()
{
// Do not manually modify this function.
//~Entice Designer 0.8.5.02 code begins here.
//~DFL Form
text = "My Form";
clientSize = dfl.all.Size(284, 264);
//~DFL dfl.label.Label=label1
label1 = new dfl.label.Label();
label1.name = "label1";
label1.bounds = dfl.all.Rect(16, 40, 136, 40);
label1.parent = this;
//~Entice Designer 0.8.5.02 code ends here.
}
private void startMyForm2(){
auto newForm = new MyForm2;
newForm.show();
newForm.button1.click ~= &changeLabel1inMyForm(){
}
private void changeLabel1inMyForm(Control sender, EventArgs ea){
// How to change label1.text from here ??
}
}
int main()
{
int result = 0;
try
{
Application.enableVisualStyles();
//@ Other application initialization code here.
Application.run(new MyForm());
}
catch(Object o)
{
msgBox(o.toString(), "Fatal Error", MsgBoxButtons.OK, MsgBoxIcon.ERROR);
result = 1;
}
return result;
}
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File 2 - with the new "form" definition;
| Code: |
/*
Generated by Entice Designer
Entice Designer written by Christopher E. Miller
www.dprogramming.com/entice.php
*/
import dfl.all;
class MyForm2: dfl.form.Form
{
// Do not modify or move this block of variables.
//~Entice Designer variables begin here.
dfl.button.Button button1;
//~Entice Designer variables end here.
this()
{
initializeMyForm();
//@ Other MyForm initialization code here.
}
private void initializeMyForm()
{
// Do not manually modify this function.
//~Entice Designer 0.8.5.02 code begins here.
//~DFL Form
text = "My Form";
clientSize = dfl.all.Size(284, 264);
//~DFL dfl.button.Button=button1
button1 = new dfl.button.Button();
button1.name = "button1";
button1.bounds = dfl.all.Rect(48, 48, 120, 40);
button1.parent = this;
//~Entice Designer 0.8.5.02 code ends here.
button1.click ~= &changeLabel1inMyForm(){
}
}
private void changeLabel1inMyForm(Control sender, EventArgs ea){
// How to change Myform.label1.text from here ??
}
}
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I'm beginner and I haven't seen any DFL example with code divided into many files. But for me it would be much easier to see one. |
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Chris Miller
Joined: 27 Mar 2004
Posts: 514
Location: The Internet
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| Posted: Fri Aug 29, 2008 10:43 am Post subject: |
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Delegate literals and nested functions only work with event callbacks if you're sure the event won't be fired after the function it's in returns. You'll need to use a non-static member function.
Example:
| Code: | class MyForm: Form
{
this()
{
click ~= &form_click; // Add click event handler.
}
private void form_click(Object sender, EventArgs ea)
{
// Handle event here.
}
} |
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pit
Joined: 19 Aug 2008
Posts: 4
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| Posted: Sun Aug 31, 2008 6:31 am Post subject: |
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Thanks for your reply. I need to give more time to learn D.
BTW. Appreciate your work. |
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Engineer
Joined: 15 Feb 2008
Posts: 1
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| Posted: Fri Sep 05, 2008 11:46 am Post subject: |
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Hi,
I have the same problem (but only in one file). A MainForm with a listbox and other stuff and a SubForm with a textbox and a button to add items to the listbox of the MainForm. I don't get any error but I'm also not able to add an item, nothing happens after the SubForm is being closed.
Function in Class MainForm:
| Code: |
...
private void addlistitem(char[] ric, char[] funktion)
{
if (funktion != "")
{
MainForm.listBox1.items.add(ric~":"~funktion);
} else
{
MainForm.listBox1.items.add(ric);
}
}
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Call in Class SubForm:
| Code: |
...
auto MainForm = new MainForm();
MainForm.addlistitem(textBoxB3.text,textBoxB1.text);
SubForm.close();
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And another Question, is it possible to disable the MainForm while the SubForm is open an enable it again after the users closes the SubForm? MainForm.enabled = false worked fine but MainForm.enabled = true has no effect in the SubForm. Looks like the same cause. Thanks in advance and btw awesome work Chris. |
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Chris Miller
Joined: 27 Mar 2004
Posts: 514
Location: The Internet
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| Posted: Tue Sep 09, 2008 9:46 am Post subject: |
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Engineer, I'm not sure off hand, but I'm not sure why you're using 'auto'; I think that usage is outdated and might be destructing the form early. It would be helpful if you would provide a small, reproducable working example that I can run through the compiler and test.
-Chris |
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Chris Miller
Joined: 27 Mar 2004
Posts: 514
Location: The Internet
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| Posted: Thu Sep 11, 2008 11:15 am Post subject: |
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| Engineer wrote: | | And another Question, is it possible to disable the MainForm while the SubForm is open an enable it again after the users closes the SubForm? MainForm.enabled = false worked fine but MainForm.enabled = true has no effect in the SubForm. Looks like the same cause. Thanks in advance and btw awesome work Chris. |
Sounds like you want a "modal dialog" and you get it with Form.showDialog. |
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jicman
Joined: 22 Dec 2004
Posts: 298
Location: Rochester, NY
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| Posted: Sat Dec 05, 2009 6:54 pm Post subject: |
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just to keep the idea in the same thread...
How do i access the various properties of an imported class? For example: I have this program,
| Code: | import dfl.all;
import myform2;
void main()
{
Form d = new MyForm();
d.text = "Hello...";
//d.Name.text = "name";
d.show();
} |
and this is the imported class,
| Code: | /*
Generated by Entice Designer
Entice Designer written by Christopher E. Miller
www.dprogramming.com/entice.php
*/
import dfl.all;
class MyForm: dfl.form.Form
{
// Do not modify or move this block of variables.
//~Entice Designer variables begin here.
dfl.textbox.TextBox Name;
//~Entice Designer variables end here.
this()
{
initializeMyForm();
//@ Other MyForm initialization code here.
}
private void initializeMyForm()
{
// Do not manually modify this function.
//~Entice Designer 0.8.6pre4 code begins here.
//~DFL Form
text = "My Form";
clientSize = dfl.all.Size(292, 273);
//~DFL dfl.textbox.TextBox=Name
Name = new dfl.textbox.TextBox();
Name.name = "Name";
Name.bounds = dfl.all.Rect(24, 8, 176, 24);
Name.parent = this;
//~Entice Designer 0.8.6pre4 code ends here.
}
} |
the above compiles without any problems, but if I change it to this,
| Code: | import dfl.all;
import myform2;
void main()
{
Form d = new MyForm();
d.text = "Hello...";
d.Name.text = "name";
d.show();
} |
I get this error,
| Code: |
19:46:19.65>build -I..;c:\D\dmd\import -version=gui -version=Phobos testDFL.d
testDFL.d(8): Error: no property 'Name' for type 'dfl.form.Form'
testDFL.d(8): Error: no property 'text' for type 'int'
testDFL.d(8): Error: constant 1.text is not an lvalue
testDFL.d(8): Error: cannot implicitly convert expression ("name") of type char[4u] to int |
So, somehow, though, I can changed the Form's text, I can not change the class variables.
Any help would be greatly appreciated.
thanks,
jose |
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AutoPython
Joined: 05 Dec 2009
Posts: 12
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| Posted: Sat Dec 05, 2009 9:02 pm Post subject: |
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You could try returning Name.
| Code: |
private void initializeMyForm()
{
// Do not manually modify this function.
//~Entice Designer 0.8.6pre4 code begins here.
//~DFL Form
text = "My Form";
clientSize = dfl.all.Size(292, 273);
//~DFL dfl.textbox.TextBox=Name
Name = new dfl.textbox.TextBox();
Name.name = "Name";
Name.bounds = dfl.all.Rect(24, 8, 176, 24);
Name.parent = this;
//~Entice Designer 0.8.6pre4 code ends here.
return Name;
}
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I can't think of anything else atm, nor can I test it because something is going wrong with my DFL library.
[/code] |
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jicman
Joined: 22 Dec 2004
Posts: 298
Location: Rochester, NY
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| Posted: Sat Dec 05, 2009 9:29 pm Post subject: |
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I don't think that is correct, since I am going to have a bunch of this variables. And that is what class is all about, to pass all of this variables under one variable.
I know I am missing something easy, but I can not come up with it.
thanks,
jose |
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AutoPython
Joined: 05 Dec 2009
Posts: 12
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| Posted: Sat Dec 05, 2009 10:23 pm Post subject: |
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There is some easy  .
Inheritance.
| Code: |
class a ()
{
chr[] some_var = "a";
}
class b:a()
{
writef(some_var);
}
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Or you can try
| Code: |
public void initializeMyForm() |
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jicman
Joined: 22 Dec 2004
Posts: 298
Location: Rochester, NY
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| Posted: Sat Dec 05, 2009 10:40 pm Post subject: |
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I tried the public void initializeMyForm() and that did not work. I do not want to try the other one because the final Class will have many more variables and the code is going to get very ugly with the repetitive code.
thanks. |
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jicman
Joined: 22 Dec 2004
Posts: 298
Location: Rochester, NY
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| Posted: Sat Dec 05, 2009 11:00 pm Post subject: |
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Just to leave the result here, this works:
| Code: | import dfl.all;
import myform2;
void main()
{
auto d = new MyForm();
d.text = "Hello...";
d.Name.text = "name";
d.show();
}[quote]
I got it from the D Learn NewsGroup.[/quote] |
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jicman
Joined: 22 Dec 2004
Posts: 298
Location: Rochester, NY
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| Posted: Sat Dec 05, 2009 11:01 pm Post subject: |
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Just to leave the result here, this works:
| Code: | import dfl.all;
import myform2;
void main()
{
auto d = new MyForm();
d.text = "Hello...";
d.Name.text = "name";
d.show();
} |
I got it from the D Learn NewsGroup. |
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