Re: generate run time form IN MAIN(Mdi form) which can contain few other forms - C# Discussion Boards

Pete O'Hanlon10-Aug-09 1:39

Pete O'Hanlon

10-Aug-09 1:39

p_1960 wrote:
May i know why Multiple Inheritance is not supported in c#...

The quick answer is because of the Diamond problem. Here's more information[^].

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

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kstls10-Aug-09 1:41

kstls

10-Aug-09 1:41

Another link: c# faq

Muhammad Mazhar10-Aug-09 2:04

10-Aug-09 2:04

There were a number of problems with multiple inheritance. Read about diamond problem with multiple inheritance and C# solution to it.

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generate run time form IN MAIN(Mdi form) which can contain few other forms

PIEBALDconsult10-Aug-09 6:24

PIEBALDconsult

10-Aug-09 6:24

Here's a recent thread[^] you should have been able to find with a search.

shaktisinh10-Aug-09 0:55

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

10-Aug-09 0:55

Dear Developers...
I need to generate run time form IN MAIN(Mdi form)
which can contain few other forms...

simplified.
formMain(MDI)->form1(Mdi for form 2,3,4)->form 2,form 3,form 4...

it means form 2,3,4 will be open inside the form1 which is generated in Main Mdi.

Thanks

Muhammad Mazhar10-Aug-09 1:16

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

10-Aug-09 1:16

Could you please explain in detail? If you are using MDI form then you can already host multiple child forms in it. If you want them to opened by default all you need is to create their instances on application start and set their parent MDI container.

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shaktisinh10-Aug-09 18:33

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

10-Aug-09 18:33

Dear Muhammad,

hierarchy is as follows.
grant parent->parent->Grant Children
form1->form2->form3..N

More Detail

In an MDI parent form I need to open multiple MDI forms which can hold multiple forms.

actually I need to create multiple workspaces where
I can open multiple forms within those workspaces.

If its not possible than i request you to give some other way to get this done.
Thanking you,

Muhammad Mazhar11-Aug-09 1:52

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

11-Aug-09 1:52

Give a try to following.
1)- create a new Windows Forms application for C#
2)- Right Click on soluton explorer and add new MDIParent form
3)- Update Program.cs files to point to this new MDI parent form
4)- Now edit the code of that MDIParent form and lcoate following mehtod

private void ShowNewForm(object sender, EventArgs e)
        {
            Form childForm = new Form();
            childForm.MdiParent = this;
            childForm.Text = "Window " + childFormNumber++;
            childForm.Show();
        }

and update it as below

private void ShowNewForm(object sender, EventArgs e)
        {
            Form childForm = new Form();
            //childForm.MdiParent = this;
            childForm.IsMdiContainer = true;
            childForm.Text = "Window " + childFormNumber++;
            childForm.Show();
        }

Now when ever you will open a new form it will open a separate MDIForm that can hold its own childs.

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Dave Kreskowiak10-Aug-09 5:03

Dave Kreskowiak

10-Aug-09 5:03

You cannot do it this way. An form cannot be both an Mdiparent and an MdiChild form to another MdiParent at the same time.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

shaktisinh10-Aug-09 18:02

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

10-Aug-09 18:02

Dear Sir
can you suggest me way to do it...

Dave Kreskowiak10-Aug-09 18:23

Dave Kreskowiak

10-Aug-09 18:23

The only way to do anything close to that would be to create an instance of the child form, set its TopLevel property to false, add it to the parent form's Controls collection, then show with someFormInstance.Show().

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

shaktisinh10-Aug-09 18:44

Re: generate run time form IN MAIN(Mdi form) which can contain few other forms

10-Aug-09 18:44

Dear Sir,
We cant add forms in control collection...
Thanks

Dave Kreskowiak11-Aug-09 1:32

Dave Kreskowiak

11-Aug-09 1:32

Wanna bet?? The Form class derives directly from the Control class.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Splitting a string

kanchoette10-Aug-09 0:32

kanchoette

10-Aug-09 0:32

I was using the following code to split textbox text by a single space character:

string words = notesTextBox.Text;
string[] splitWords = words.Split(new Char[] { ' '});

I now need to split the textbox text by either the space character or a carriage return. How can I do this please?

Re: Splitting a string

Moreno Airoldi10-Aug-09 0:43

Moreno Airoldi

10-Aug-09 0:43

You can add chars to your array:

string words = notesTextBox.Text;
string[] splitWords = words.Split(new Char[] { ' ', '\r' });

2+2=5 for very large amounts of 2
(always loved that one hehe!)

Re: Splitting a string [modified]

Jason Barry10-Aug-09 5:46

Jason Barry

10-Aug-09 5:46

If you need to split the text by a carriage return and/or space character, you can use the following code sample:

string words = notesTextBox.Text;
words = words.Replace("\r\n", " ");
string[] splitWords = words.Split(new char[] { ' ' });

This will replace all the carriage returns with spaces, then split the text at each space.

If you do what Moreno said and just add the '\r' and '\n' characters to the array, you will end up getting more split words in your array. You will have to try each way and see which best fits your needs.

string words = notesTextBox.Text;
string[] splitWords = words.Split(new char[] { ' ', '\r', '\n' });

modified on Monday, August 10, 2009 11:55 AM

How to Create a Project run on Windows Startup using C#.Net

vasanth arivali10-Aug-09 0:02

vasanth arivali

10-Aug-09 0:02

Hai Friends,

I want to create a .net application that run on windows startup.
How can i create that.

Guide me with your Ideas.

Thanks,

Vasanth.A

Re: How to Create a Project run on Windows Startup using C#.Net

Laserson10-Aug-09 0:06

Laserson

10-Aug-09 0:06

Create a new registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run and then add a new key-value (MyApp - C:\MyApp.exe)

using Microsoft.Win32;

private void CreateStartup() {

RegistryKey Key=Registry.LocalMachine.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run");
Key.SetValue("MyApp", Application.ExecutablePath);
}

Re: How to Create a Project run on Windows Startup using C#.Net

Muhammad Mazhar10-Aug-09 1:27

Re: How to Create a Project run on Windows Startup using C#.Net

10-Aug-09 1:27

I think you can also try to create a scheduled task.

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senguptaamlan10-Aug-09 23:01

senguptaamlan

10-Aug-09 23:01

I don't think that will help, schedular task, actually invokes a task or a bartch on a redefined time, its not responsive to windows startup. Its better to to add the entry in registry.

Re: How to Create a Project run on Windows Startup using C#.Net

Muhammad Mazhar11-Aug-09 1:53