Re: Late Typed List - C# Discussion Boards

Re: urgently required.. pls reply...

Nirmala VijayAseelan26-Mar-09 7:12

Nirmala VijayAseelan

26-Mar-09 7:12

Thanks for replying Julien... Smile | :)

That link contains the contents in C# language that i already searched for.. Actually i couldn convert that C# code into VB totally.. pls help me in finding vb code.

Re: urgently required.. pls reply...

King Julien26-Mar-09 19:29

King Julien

26-Mar-09 19:29

I dont understand, why are you searching for a readymade code...

All these forums and members here are just to help if you get stuck with something but not to completely do your work...

I dont think its too hard to convert a C# code in to VB.Net Code, if you know the basics and syntax of VB.Net...

Please give a try yourself... That will enhance your ideas and programming skill as well....

My hearty wishes for a successful project....

Have a Happy Coding.....

How to declare/tie a mdigrandchild form to mdiGrandParent form?

Lecutus125-Mar-09 7:04

Lecutus1

25-Mar-09 7:04

How to declare/tie a mdigrandchild form to mdiGrandParent form?
Situ:
I'm writing some code/mdiParent that spawns a child form, child1, that has all the information capturing. Now child1 spawns a child, grandchild. The grandchild is a lean version of child1, readonly type situation. Child1 is not shown, but working. Grandchild is to: Grandchild.show().

Needed:
I need to declare the grandchild to show in the mdiParent. I'm sure it's somthing similar to :

The parent is MainIndiv_Truck_ControlMDI : Form

the child1 is declared in the parent as:

Indiv_Truck_Control TruckForm = new Indiv_Truck_Control();
TruckForm.MdiParent = this.

I know I'm missing something. I can make the grandchildren, but there happening outside the MdiParent. I want them to happen inside MainIndiv_Truck_ControlMDI : Form

Thanks in advance.L.

Re: How to declare/tie a mdigrandchild form to mdiGrandParent form?

Henry Minute25-Mar-09 11:24

Henry Minute

25-Mar-09 11:24

I am not sure that I totally understand your question, but I think that you want the grandchild form to be bound within the parent form?

If that is so, just set the grandchild forms' mdiparent property to the parent form as well.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Re: How to declare/tie a mdigrandchild form to mdiGrandParent form?

Lecutus126-Mar-09 7:53

Lecutus1

26-Mar-09 7:53

I would but what is the method if I can't use:

The parent is MainIndiv_Truck_ControlMDI : Form

the child1 is declared inside the parent as:

child1 = Indiv_Truck_Control TruckForm = new Indiv_Truck_Control();
TruckForm.MdiParent = this;

Then child1 spawns a child of its own, grandchild.

The grandchild has to be inside the MainIndiv_Truck_ControlMDI : Form.
grandchild.Mdiparent = "what"?
I'm not sure how to say the "what"? part.

Thanks

Re: How to declare/tie a mdigrandchild form to mdiGrandParent form?

Henry Minute26-Mar-09 9:07

Henry Minute

26-Mar-09 9:07

For the grandchild form to be contained inside the grandparent form it must be

grandchild.Mdiparent = MainIndiv_Truck_ControlMDI

otherwise it won't be contained.

You can put a form inside another, but you won't get the benefits of the MDI interface.
Like this:

Form grandchild = new grandchildForm();
grandchild.TopLevel = false;
grandchild.Parent = MainIndiv_Truck_ControlMDI;
grandchild.Visible = true;
grandchild.Location = new Point(10, 10);
grandchild.Size = new Size(100, 150);
grandchild.BackColor = Color.Bisque; // or whatever. this is just to make it stand out
MainIndiv_Truck_ControlMDI.Controls.Add(grandchild);

Late Typed List

Adriaan Davel25-Mar-09 7:02

Adriaan Davel

25-Mar-09 7:02

Ok, I've Googled myself silly. I need to create a List<> instance based on a System.Type instance, the list must not contain a bunch of Type instances like List<system.type> x;</system.type> but more like:

Type objectType = objectInstance.GetType();
List<objectType> objects = new List<objectType>(); //This is where I need to create the list based on the Type
objects.Add(objectInstance);//This shouldn't give an error

____________________________________________________________
Be brave little warrior, be VERY brave

Re: Late Typed List

Adam Maras25-Mar-09 7:08

Adam Maras

25-Mar-09 7:08

http://msdn.microsoft.com/en-us/library/b8ytshk6.aspx[^]

Scroll about half-way down.

Re: Late Typed List

Curtis Schlak.25-Mar-09 7:26

Curtis Schlak.

25-Mar-09 7:26

The binding of generic parameters occurs at (mostly) compile-time. Unfortunately, what you want can't be done at run-time. The closest you can get is with using Reflection.

Type objectType = objectInstance.GetType();

<span style="color:green">// Create a generic list bound to the Type.</span>
Type unboundListType = <span style="color:blue">typeof</span>(List<> );
Type boundListType = unboundListType.MakeGenericType(<span style="color:blue">new</span> Type[] {objectType});
ConstructorInfo ctor = boundListType.GetConstructor(Type.EmptyTypes);
<span style="color:blue">object</span> genericBoundList = ctor.Invoke(<span style="color:blue">null</span>);

<span style="color:green">// Add a thing to the list.</span>
MethodInfo info = boundListType.GetMethod("Add");
info.Invoke(genericBoundList, <span style="color:blue">new object</span>[] { <span style="color:blue">new</span> Moo() });

Hope that helps.

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

Re: Late Typed List

Adriaan Davel25-Mar-09 20:01

Adriaan Davel

25-Mar-09 20:01

Thanks for the help, did the trick. Took me a whle to understand what was going on... I'm already using reflection extensively so this fits in to the rest of my design

____________________________________________________________
Be brave little warrior, be VERY brave

Re: Late Typed List

Curtis Schlak.26-Mar-09 0:36

Curtis Schlak.

26-Mar-09 0:36

I'm glad to read that!

Happy coding.

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

object constants in c#

robertkjr3d25-Mar-09 6:05

robertkjr3d

25-Mar-09 6:05

How do you use an object to return constants... or to select them...

like:
Whatever.CCN.use.HomePermanent; (when you hit the '.' after 'use' you get other options)

or I would like to set it like this
Whatever.CCN.use = "HP";

So in the 'use' class there would be constants set
HomePermanent = "HP";
HomeVacation = "HV";
WorkPlace = "WP";
Home = "H";

Re: object constants in c#

J$25-Mar-09 6:10

25-Mar-09 6:10

I think an Enum is probably what you're looking for.

http://msdn.microsoft.com/en-us/library/sbbt4032(VS.80).aspx[^]

Re: object constants in c#

robertkjr3d25-Mar-09 7:18

robertkjr3d

25-Mar-09 7:18

Ok I've declared the enum

but now how do I use it in a class struct:

enum nameuse { Legal = "L", Alias = "P", None = "" };

public class theName
{
public string use; // so that this is supposed to only have 3 options
public string prefix;
public string FirstName;
public string Middle;
public string LastName;
public string Suffix;
}

Re: object constants in c#

DaveyM6925-Mar-09 7:26

DaveyM69

25-Mar-09 7:26

instead of declaring use as a string declare it as nameuse

public nameuse use;
use = nameuse.Legal;

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: object constants in c#

Skymir25-Mar-09 7:40

Skymir

25-Mar-09 7:40

If I'm not mistaken it would be:

public nameuse use;

Then you should get a list when you use InstanceOftheName.use = (List of options)

Also I believe enums have to be a numbered list. Like this:

enum nameuse { None = 0, Legal = 1, Alias = 2 };

If you want something to return a string based on a letter, usually you have to use a function with a switch case statement inside it to return the value you want. That won't give you the nice ordered list in the IDE though.

Of course I've been relegated to the vb6 world of doom for a while now so my thinking could be a bit off on c#.

The true man wants two things: danger and play. For that reason he wants woman, as the most dangerous plaything.

Re: object constants in c#

robertkjr3d25-Mar-09 8:25

robertkjr3d

25-Mar-09 8:25

Yes I just got an error mesg... trying this method on:

Cannot implicitly convert type 'string' to 'int'
public enum nameuse { Legal = "L", Alias = "P", None = "" };

and it points out on each of the stringed items... as if they need to be Integer.

I think I'll go back to Hanlon's method... and attempt that direction.

Re: object constants in c#

Pete O'Hanlon25-Mar-09 6:11

Pete O'Hanlon

25-Mar-09 6:11

public static class use
{
  public const string HomePermanent = "HP";
}

This could be used by string myValue = use.HomePermanent; Is this what you're after?

"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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Re: object constants in c#

robertkjr3d25-Mar-09 7:30

robertkjr3d

25-Mar-09 7:30

ok I tried your method...

public static class thenameuse {
public const string Legal = "L";
public const string Alias = "P";
public const string None = "";
}

public class theName
{
public thenameuse nameuse;
public string prefix;
public string FirstName;
public string Middle;
public string LastName;
public string Suffix;
}
public theName[] Name;

but from the form class...
cn.Patient.Name[0].nameuse. (I do not get the the const values to populate when hitting the '.') I tried a few things, to no avail. What am I missing?

Re: object constants in c#

robertkjr3d25-Mar-09 8:26

robertkjr3d

25-Mar-09 8:26

referenced them by
nameuse.Legal
nameuse.Alias

Thank you! I got it now!

How to deploy c# project with vb6 project

Pr@teek B@h!25-Mar-09 6:00

Pr@teek B@h!

25-Mar-09 6:00

Hi,
I have a project suite that is written in vb6. Since some of the programs in the suite don't work, I created the same programs in c#. How can I create a setup file that will have the rest of the vb6 projects and c# projects?

Also, if this message doesn't belong to this message board, I apologize and would like it if you can tell me where I can ask this question.

Thank you,

Prateek

marking shape on image

aligokdemir25-Mar-09 5:56

aligokdemir

25-Mar-09 5:56

Hi;
i am writing some codes. that codes are found and mark any squares,circles on image.I know that its very complicated. So please help me. I'm waiting for helps.
thanks for helps.

Ali GOKDEMIR

Re: marking shape on image

jaypatel51225-Mar-09 6:50

jaypatel512

25-Mar-09 6:50

Graphics dc = this.CreateGraphics();
Pen redPen = new Pen(Color.Red, 10);
dc.DrawEllipse(redPen,10,10,50,50);

Re: marking shape on image

DaveyM6925-Mar-09 11:46

DaveyM69

25-Mar-09 11:46

... not forgetting to call Dispose on the Graphics and Pen objects of course - better done in using blocks so you can't forget.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: marking shape on image

aligokdemir27-Mar-09 2:57

aligokdemir

27-Mar-09 2:57

thanks for mail. Your codes are usefull. But i want to found shape (ellipse, square...) on picture.
Frown | :(

how can i write like this?

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