Custom UserControl shape problem... - C# Discussion Boards

Re: count specific character in string

Guffa24-Oct-06 22:58

Guffa

24-Oct-06 22:58

Easiest:

int cnt = str.Length - str.Replace(",", "").Length;

Fastest and most resource efficient:

int cnt = 0;<br />
foreach (char c in str) {<br />
   if (c == ',') cnt++;<br />
}

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b { font-weight: normal; }

how to use the printDialogBox?

quiteSmart24-Oct-06 20:11

quiteSmart

24-Oct-06 20:11

Hi,

I need to get some knowledge about the printing procedure in C# using VS 2005. I want to know how to use the print dialog and print document and any other necessarly object to print the text inside a text area (or multi-lined text box).

Thanks in advance;

jamil abou khalil

Re: how to use the printDialogBox?

Nader Elshehabi24-Oct-06 22:03

Nader Elshehabi

24-Oct-06 22:03

Hello

Did you revise the printing section in C# articles page?

Regards

Re: how to use the printDialogBox?

quiteSmart24-Oct-06 22:43

quiteSmart

24-Oct-06 22:43

hi,
I tried searching in the articles but i am not lucky to find anything.

If you can please point me to an article that may benefit me.

thanks

jamil abou khalil

How can I add the assembly Microsoft.Office.Interop.Outlook?

OctopusThu24-Oct-06 19:26

OctopusThu

24-Oct-06 19:26

I'm developing an Outlook Add-in with Visual Studio 2005 using COM.

I created a new project via Extensibility -> shared add-in, and I need to add the reference "Microsoft.Office.Interop.Outlook" in order to go on with the development. But it is no where to be found in the "Add Reference" Dialog Box.

Somebody help me, please......

Re: How can I add the assembly Microsoft.Office.Interop.Outlook?

OctopusThu24-Oct-06 19:36

OctopusThu

24-Oct-06 19:36

I solved it myself...

The assembly is right there in:

COM -> Microsoft Outlook 11.0 Object Library......

Custom Draw TreeView problem - Painted "+" got overriden

DiegoValdevino24-Oct-06 19:18

DiegoValdevino

24-Oct-06 19:18

I am creating a custom draw treeview with level 0 treenodes draw by the code below. I want to paint the entire node row, including behind the PlusMinus button with a color of choice.
The problem happens with my code running after the PlusMinus button is painted,thus erasing it. Is there some event fired before OnDrawNode painting the "+" that i am missing and should override?
Setting a breakpoint on the begining of OnDrawNode and seeing the control, shows me the "+" is already painted.

protected override void OnDrawNode(DrawTreeNodeEventArgs e){
if (e.Node.Level == 0){
Rectangle nodeRegion = new Rectangle(ClientRectangle.X, e.Node.Bounds.Y, ClientRectangle.Width, e.Node.Bounds.Height);

SolidBrush nodeBackColor = new SolidBrush(Color.BlanchedAlmond);
SolidBrush nodeForeColor = new SolidBrush(Color.Black);

Font nodeFont = (e.Node.NodeFont == null) ? this.Font : e.Node.NodeFont;

e.Graphics.FillRectangle(nodeBackColor, nodeRegion); // PROBLEM
e.Graphics.DrawString(e.Node.Text.Trim(), nodeFont, nodeForeColor, e.Node.Bounds.Location);
}
else{
e.DrawDefault = true;
}
base.OnDrawNode(e);
}

ps.: It looks like the OnPaint event isnt fired on a TreeView. Couldnt find why is this on MSDN.

Thanks!

Diego Valdevino

Custom UserControl shape problem...

Kasic Slobodan24-Oct-06 16:08

Kasic Slobodan

24-Oct-06 16:08

I have a UserControl and when Iam not using this.Region to form a custom shape for my UserControl everything is ok except that in the upper left and right corner you can see a cotrol background.

See here: http://img87.imageshack.us/my.php?image=goodjo2.jpg

When I put this piece of code:

region.Intersect(gp);
this.Region = region;

Where the gp looks like:

gp.AddArc(0, 0, 20, 20, 180, 90); // prva kriva
gp.AddArc(this.Width - 21, 0, 20, 20, 270, 90); // druga kriva
gp.AddLine(this.Width - 1, 20, this.Width - 1, this.Height - 1); // desna linija
gp.AddLine(this.Width - 1, this.Height - 1, 0, this.Height - 1); // donja linija
gp.CloseFigure();

In other words, those darker blue lines (borders) of the UC, I get this ugly looking corners in upper left and right corners and no right and bottom line.

See here: http://img291.imageshack.us/my.php?image=badid4.jpg

My question is, how can I set an Region to my UC without this 'stuff' around upper left and right corners and with right and bottom lines?

I hope you understand.

Re: Custom UserControl shape problem...

Kasic Slobodan27-Oct-06 7:31

Kasic Slobodan

27-Oct-06 7:31

Anyone?

Application.Exit(); not working in the form constructor, why?

AngryC24-Oct-06 14:57

AngryC

24-Oct-06 14:57

Hello,

I'm using Application.Exit(); in the form contructor to terminate the application if certain condition is met... but it's not working!

Why? and what can I do?

Thanks...

Re: Application.Exit(); not working in the form constructor, why?

Nader Elshehabi24-Oct-06 15:22

Nader Elshehabi

24-Oct-06 15:22

Hello

I believe you are making the famous scenario of checking a condition -maybe login or something- at the start of your application, if(false) => Exit(). Right?

Well if you take a look ate Program.cs file where the main method exists, you'd see this line

Application.Run(new MyForm());

So actually it excutes more like this:

MyForm temp = new MyForm()
Application.Run(temp)
//Then temp dies here

Well, not exactly but I made it this way to illustrate that your constructor must return first before the Run() method actually gets called, and of course calling the Exit() method is useless if the Run() didn't get excuted first.

Suggested solution:
Simple; Make the Application.Exit() call in your Form_Load event if applicable.

Regards

Re: Application.Exit(); not working in the form constructor, why?

AngryC24-Oct-06 16:31

AngryC

24-Oct-06 16:31

Thanks, Nader.

Re: Application.Exit(); not working in the form constructor, why?

EricT.25-Nov-10 7:27

EricT.

25-Nov-10 7:27

Bad answer -- you can't Application.Exit() in Form_Load either. Only solution is change of architecture: don't start the form if you don't want to display it

Search for statements in CS files.

Alex Iagovsky24-Oct-06 14:34

Alex Iagovsky

24-Oct-06 14:34

Hello .

I am looking for a program or
an idea how to parse C# files .

What I mainly need to find is disposing of created objects in the methods

In each method in each class that is in the file ,
I want to look for object creation statement :

myObject = new CMyObject()

And then to see whether this object is disposed in the end of the method
( in the finally ) .

And I also want to analyze more stuff .

The question is whether anyone knows a program that can help me ,
or can give me an idea how to do it ?

CodeDom can help me ?
Is it possible to create CodeDom objects hierarhy from source code ?

Thanks

Re: Search for statements in CS files.

Nader Elshehabi24-Oct-06 15:29

Nader Elshehabi

24-Oct-06 15:29

Hello

Well, regular expressions is pretty much what you are looking for. Use it to identify the pattern of creation, then extract the object's name from it. Using that name you can search for disposal code if exists. Since I'm not that good in Regex, I wouldn't be much helpful in phrasing your Regex, but if you don't know Regex:
The namespace you'd use : System.Text.RegularExpressions
A very good tutorial site: This site[^]

VoidPointer wrote:
CodeDom can help me ?

CodeDom would be a choice if you want to modify the code and compile it through your program. But if you just want to search and modify something in the cs files -which could be much treated as text files-, then you wouldn't need CodeDom.

Ps. You application sounds pretty much as a Visual Studio Add-in!! Is that what you're trying to make?

Regards

Re: Search for statements in CS files.

Alex Iagovsky25-Oct-06 3:19

Alex Iagovsky

25-Oct-06 3:19

Thanks .

Let's see whether others have some ideas too .

I mainly need this for my personal use .
( I have a huge project and we add modules all the time to it
and checking this manually is not much fun )

Though maybe I'll convert this functionality ( when and if I'll write it )
into an add-in for VS .

Forms

m.m._200724-Oct-06 14:07

m.m._2007

24-Oct-06 14:07

i have two Forms : Form1 and Form2
from Form1 i show Form2:
Form2 form2 = new Form2();
form2.Show();

i want from Form2 to Close Form1 by using the same code:
Form1 form1 = new Form1();
form2.Show();
but doesn't close Form1

Re: Forms [modified]

Nader Elshehabi24-Oct-06 15:40

Nader Elshehabi

24-Oct-06 15:40

Hello

I don't know why someone flamed you with score 1.0, and didn't even answer you -wasn't me btw-. Your question is quite very simple -forgive me for saying that-. I guess you didn't do much reading in OOP did you?;)

The first block of code is fine in creating a form, while the second is far from closing one:

m.m._2007 wrote:
Form1 form1 = new Form1();

The above line creates a new form of type Form1. So refereing to it would be to the new form not your original form.

m.m._2007 wrote:
form2.Show();

And this line shows the new form that you've just made in the previous block. Why on earth did you expect it to close the original one? Shouldn't you've called the method Close() at least?

To make your code work you have to pass reference to your original form to the Form2 object and call the Close() method for it.

Edit your Form2 constructor to

private Form1 orgigenal
Form2(Form1 or)
{
    origenal = or;
    //More code
}

Now show Form2 like this:

Form2 myForm = new Form2(this);// referencing to the original form

and in Form2 close Form1 like this

origenal.Close();

I hope you got it, and I strongly suggest you do more reading in C# OOP programming.

-- modified at 21:59 Tuesday 24th October, 2006

Regards

Re: Forms

phenix-burn24-Oct-06 15:42

phenix-burn

24-Oct-06 15:42

form2 is builded by form1
You close form1 in form2,and the application will terminate
The code like this:
Code in Form1:
private void button1_Click(object sender, System.EventArgs e)
{
Form2 form2 = new Form2();
form2.Frm = this;
form2.Show();
}
Code in Form2:
///

/// Form which will close
///

private Form _frm = null;
public Form Frm
{
get
{
return _frm;
}
set
{
_frm = value;
}
}

private void button1_Click(object sender, System.EventArgs e)
{
Frm.Close();
}

phenix-burn

Socket class Poll method and POP3 client

Martin Lachowicz24-Oct-06 13:00

Martin Lachowicz

24-Oct-06 13:00

How exactly does this method work?
It seems to me that it's supposed to check the Socket object state for the number of specified miliseconds and if during this period it will determine that the Socket is in state given in the method, it will return true or false if it's not and if the time elapses and the state won't match the definition given in the method it will return false. Is this correct? Does poll method block the socket?
Next questions concerns the POP3 service. I'm trying to connect to the service and authenticate user. My program always return exception when it is trying to connect to pop3 server for the first time after boot up. I used the polling to determine if the socket state is "read" (after connecting to service) with 20 second timeout. If it is then the the Receive method of the socket is called if it's not the exception is returned. I always get the exception when I try to connect after boot up.
What may be the reason of this? How would You get around it?
Thanks in advance.

p.s.: The socket is in blocking mode.

Counting months between dates?

rbaut24-Oct-06 12:08

rbaut

24-Oct-06 12:08

I need to compute the number of months between two dates (DateTime objects). Does anyone know a way to do this? I know I can count the days between the dates by subtracting one from the other to get a TimeSpan value and grab its Days value, but how about the number of months in between the dates?

Re: Counting months between dates?

Guffa24-Oct-06 12:15

Guffa

24-Oct-06 12:15

That depends on how you define the difference in monhts.

You can calculate a linear month index by taking the year times twelve plus the month. Then you can compare the indices to get the difference is monhts. That of course means that the difference between 2006-10-31 and 2006-11-01 is one month.

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b { font-weight: normal; }

Why doesn't the left mouse button work... [modified]

new_phoenix24-Oct-06 11:19

new_phoenix

24-Oct-06 11:19

with a control when it is double clicked? When a customized control is double clicked, it takes the right mouse button to cause the code to be executed. I checked for articles but could not find one that clearly explained why the left mouse button does not work with a customized control.

It works fine with a regular command button, but for some reason it does not work with a custom run-time control. What are the requirements for connecting event handlers so that the left mouse button will properly invoke the click and double click event handlers? Why is the right mouse button even involved when a customized run-time control is a either clicked or double clicked?

I would appreciate some assistance. I am certain that there are others that would like to know the reason and how to correct it.

-- modified at 18:31 Tuesday 24th October, 2006

CollectionEditor and Generics

Jamie Nordmeyer24-Oct-06 10:43

Jamie Nordmeyer

24-Oct-06 10:43

Anybody know how to get a CollectionEditor derived class to properly edit a List<t> collection? What I have is an abstract base class that is passed to a List<> collection, like so:

public List<BaseThing> Things
{
...
}

I've got several classes that derive from BaseThing, and they're presented to the CollectionEditor via the CreateNewItemsTypes method. I can open the editor, but as soon as I click the 'Add' button, I get the following error:

The value 'DerivedThing' is not of type 'BaseThing' and connot be used in this generic collection.

This seems like a limitation of the editor, or in how I'm implementing something, because in my NUnit test cases, one of my tests is to create this List<basething>, and add several derived items to it, and it works.

Any ideas? Thanks in advance.

Kyosa Jamie Nordmeyer - Taekwondo Yi (2nd) Dan
Portland, Oregon, USA

Need to access value from app.config file

Shilpa124-Oct-06 10:21

Shilpa1

24-Oct-06 10:21

Hi,

I am trying to use the settings.designer.cs file for a value that needs to be put into the app.config file.

My config(auto-generated by VS2005) file now looks like this:

<configuration>
<configSections>
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="Settings1" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</sectionGroup>
</configSections>
<applicationSettings>
<General.Settings1>
<setting name="DatabasePath" serializeAs="String">
<value>C:\Web\App_Data\Messages.mdb;</value>
</setting>
</General.Settings1>
</applicationSettings>
</configuration>

From the code when i access this property i am using this code:

Settings1 set = Settings1.Default;
string str = set.DatabasePath;
return str;

The above line of code returns null... can anyone explain what am i missing here???

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