Dictionary.ContainsKey - C# Discussion Boards

dubbele onzin26-Nov-07 0:23

26-Nov-07 0:23

Hi,

I'm writing a mobile application and I have to use over-sized fonts and buttons so the user can use the touch-screen with fingers rather than stylus. When an error occurs I display a standard MessageBox which works fine but the button to close it is tiny and is placed on the title bar of the MessageBox.

Is there any way of increasing the MessageBox font, or placing a large button on the MessageBox?

Thanks Smile | :)

Re: MessageBox - Increae font size

martin_hughes26-Nov-07 1:16

martin_hughes

26-Nov-07 1:16

dubbele onzin wrote:
Is there any way of increasing the MessageBox font, or placing a large button on the MessageBox?

I don't think so, but you could easily create your own form to display errors and call that instead of MessageBox.

Another trick I've seen used is not to bother with MessageBoxes at all and to have some kind of status pane/symbol/widget in your application to highlight errors.

"On one of my cards it said I had to find temperatures lower than -8. The numbers I uncovered were -6 and -7 so I thought I had won, and so did the woman in the shop. But when she scanned the card the machine said I hadn't.

"I phoned Camelot and they fobbed me off with some story that -6 is higher - not lower - than -8 but I'm not having it."
-Tina Farrell, a 23 year old thicky from Levenshulme, Manchester.

How to publish our own website

GaneshKumarVkm26-Nov-07 0:09

GaneshKumarVkm

26-Nov-07 0:09

Hello,

I want to know how we can publish our website after it is finished in VSStudio2005. Can somebody help me.

Regards

Re: How to publish our own website

pmarfleet26-Nov-07 0:11

pmarfleet

26-Nov-07 0:11

GaneshKumarVkm wrote:
I want to know how we can publish our website after it is finished in VSStudio2005.

Select the 'Publish' option from the 'Build' menu.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

How to submit info programatically?

sduhd26-Nov-07 0:07

sduhd

26-Nov-07 0:07

I used WebBrowser to get an html Document, in which there was a "Submit" button. I can get this HtmlElement. How to emulate a click in a program?
Call the elem's Click is invalid, cause it's a delegate , it can only appear in the leftside of a + or +=.
Thanks.

Re: How to submit info programatically?

Andrei Ungureanu26-Nov-07 1:45

Andrei Ungureanu

26-Nov-07 1:45

Have you considered calling the method that handles the Click event?

I will use Google before asking dumb questions

Re: How to submit info programatically?

sduhd26-Nov-07 13:31

sduhd

26-Nov-07 13:31

It's an "event delegate", you cannot call it in your code. You can only use it at the left side of + or += operator.
You know, I download an html document, it's written by other people. In the page there was a button. I want to emulate a "click" of the button in my program.

I googled but no useful result.

Dictionary.ContainsKey

Eli Nurman25-Nov-07 23:38

Eli Nurman

25-Nov-07 23:38

is it possible to return a bool on the Dictionary.ContainsKey where the key is a regex pattern?

for example if i have a hashtable (or a dictionary) of regex patterns as keys, and i want to know if the string the user entered matches to the key, do i have to search key by key with a "foreach" or does any one know a solution for searching faster.

Thanks.

Re: Dictionary.ContainsKey

Christian Graus26-Nov-07 0:00

Christian Graus

26-Nov-07 0:00

never.reply wrote:
do i have to search key by key with a "foreach"

Yes

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: Dictionary.ContainsKey

NanaAM26-Nov-07 0:16

NanaAM

26-Nov-07 0:16

Instead of wasting time on typing so much. You could have tried it with some regex example. That would have taken less time.
Anyways it is possible

Nana

Re: Dictionary.ContainsKey

Eli Nurman26-Nov-07 0:31

Eli Nurman

26-Nov-07 0:31

"Anyways it is possible"

How is that possible

Dictionary<string, string> dic = new Dictionary<string, string>();
dic.Add(@"^L(\w{1})$", "0");

Why does dic.ContainsKey("LA") return false when it matches regex?

Re: Dictionary.ContainsKey

NanaAM26-Nov-07 0:48

NanaAM

26-Nov-07 0:48

First thing I think the interpretation is wrong.
You are not using a Regex as a key of the dictionary.
Its a string object.
Then how can you search the contains key on regex?

Nana

Re: Dictionary.ContainsKey

Pete O'Hanlon26-Nov-07 0:37

Pete O'Hanlon

26-Nov-07 0:37

You have to iterate over the dictionary I'm afraid. You are trying to shoehorn functionality into an item that is only a key, and has no purpose other than to identify a particular item in the collection for quick retrieval.

Deja View - the feeling that you've seen this post before.

My blog | My articles

Re: Dictionary.ContainsKey

PIEBALDconsult26-Nov-07 9:13

PIEBALDconsult

26-Nov-07 9:13

The biggest problem with that is that the value passed in may match more than one key's pattern even though the patterns are unique. You'll need to decide what to do in those cases. Iteration will be required.

unknown sign

ghanavat25-Nov-07 23:26

ghanavat

25-Nov-07 23:26

hi guys

what is this operator " {0} "? Confused | :confused:

such as:

Console.WriteLine("Property Value: {0}", ///);

saeed ghanavat

Re: unknown sign

N a v a n e e t h25-Nov-07 23:30

N a v a n e e t h

25-Nov-07 23:30

saeed470 wrote:
what is this operator " {0} "?

This can be replaced by the object specified.

string str = "test";
int a = 10;
Console.WriteLine("{0}{1}",str,a) //This will print "test10"

If you are using this, you can avoid casting the object to string explicitly.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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form cast

md_refay25-Nov-07 22:56

md_refay

25-Nov-07 22:56

i have menu in my application and i need to create general form object that can be converted to type of the active form to execute some void in active form so i need to convert (frm) which is form to customized form like employeeform and so on
thanks

md_refay

Re: form cast

NanaAM26-Nov-07 0:18

NanaAM

26-Nov-07 0:18

What is the question?

Nana

Different type of class Instantiation - C# 3.5

N a v a n e e t h25-Nov-07 22:46

N a v a n e e t h

25-Nov-07 22:46

Hi,

I was doing some experiments with C# 3.5 and I got the following code which is very tough to digest for me. Could anyone help me to understand this ?

class MySimpleClass
{
    private string _Property1 = string.Empty;
    private string _Property2 = string.Empty;

    public string Property1
    {
        get { return _Property1; }
        set { _Property1 = value; }
    }

    public string Property2
    {
        get { return _Property2; }
        set { _Property2 = value; }
    }
}

Following is the code where above class instance are kept in a List<>

List<MySimpleClass> objList = new List<MySimpleClass>{
            new MySimpleClass{Property1="Hello",Property2="Hello1"}
        };

How such type of invoking is possible ? I checked with the overloaded constructors for List class. But I couldn't find any matching methods there. I tried removing the instance creating of MySimpleclass. Then it shows error no overload method matches the parameter. From this I guess when we specify in the above format, automatically it is calling the Add() method specified in the List. How this happening, since no overloaded constructor takes MySimpleclass as parameter ?

Any ideas ?

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Re: Different type of class Instantiation - C# 3.5

darkelv25-Nov-07 23:03

darkelv

25-Nov-07 23:03

Maybe this blog will help. (at the object initializer part)

Click Here^

Re: Different type of class Instantiation - C# 3.5

N a v a n e e t h25-Nov-07 23:15

N a v a n e e t h

25-Nov-07 23:15

Thanks for the link. That explains the syntax well. But still I am not getting how the call is going to Add() method ? Let me try with creating a custom collection and adding items. Thanks again

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Re: Different type of class Instantiation - C# 3.5

N a v a n e e t h25-Nov-07 23:50

N a v a n e e t h

25-Nov-07 23:50

Yes I found it. If any class which implements IList, and initialize like the above sample, it will call Add() method by default. Cool | :cool:

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how to show image in ListView ColumnHeader

VenkataRamana.Gali25-Nov-07 22:30

VenkataRamana.Gali

25-Nov-07 22:30

hi,

i am working on 2.0 winforms.

any plz tell me how to show an icon or image in ListView ColumnHeader.

thanks

Ramana

Re: how to show image in ListView ColumnHeader

TJoe26-Nov-07 2:07

TJoe

26-Nov-07 2:07

Check this[^] out.

Take care,
Tom

-----------------------------------------------
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enable the menus

keyto25-Nov-07 22:27

keyto

25-Nov-07 22:27

I have created a MDI form and is has menus like file edit etc. On file menu I have login sub menu. I initially disable all the menus except file. With click on login sub menu login form open and user can put user name and passowrd. The question is if that password is correct I need to enable the menus. How is it possible ? please help me.

keyto

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