C# Discussion Boards - CodeProject

Re: DataGrid - C# Windows Forms - How to not Allow a 'new' record added to end of grid

Jose Fco Bonnin22-May-03 21:26

Jose Fco Bonnin

22-May-03 21:26

You need to set it in the data view

<br />
((DataView)((CurrencyManager)this.BindingContext[dataGrid1.DataSource,dataGrid1.DataMember]).List).AllowNew = false;<br />
 <br />
<br />

Re: DataGrid - C# Windows Forms - How to not Allow a 'new' record added to end of grid

sajecw23-May-03 5:32

sajecw

23-May-03 5:32

Thank you very much. It still allows me to add my new row by .NewRow(nr), but does not allow the automatic new row in the grid. Just what I needed.

Context-sensitive Help

LongRange.Shooter22-May-03 7:58

LongRange.Shooter

22-May-03 7:58

If I dig into MSDN files, the help on creation of context-sensitive help states that I do the following:

eliminate Minimum and Maximum buttons,
add the HelpProvider to the form,
populate HelpString with the text I want displayed

Now what this does is require the user to

click the ? on the menu bar,
mouse-over the control in question,
left-mouse-click the field

What I get is a small, yellow window with the text compressed into a small display area.

I've constructed a full help file for the application which included help at the screen level with invisible topics for the various controls. I assigned context topic numbers to each topic with a unique keyword assigned to each topic and I TRIED to get the helpProvider properties set:

HelpNavigator = (I cycled through EVERY option)
HelpKeyword = context ID, topic, hidden topic name, unique keyword

When I place the cursor inside a control and hit F1, all I get is the help file positioned to either Contents, Index, or Search and the displayed help page is the Welcome page (first page in file)

Doesn't the HelpProvider support standard context help anymore? What am I missing?

Later

_____________________________________________
_{The world is a dangerous place.
Not because of those that do evil,
but because of those who look on and do nothing.}

Performance counter bug?

solidstore22-May-03 7:51

solidstore

22-May-03 7:51

When my C# service is configured to use any account otherthan SYSTEM it does not show up under the .NET CLR Memory performance counters. This seems like a bug? Can anyone else confirm this? I'm using version 1.0 in WinXP Pro.

custom sections in .config files

Anonymous22-May-03 6:43

Anonymous

22-May-03 6:43

I have a Windows Forms application that requires to read an XML, i know you can put something like

<add key="serverPath" value="http://localhost/something.aspx">

but in the case the value is XML what can I do? i tried to put the xml inside the value but it didnt work

<add key="test" value="<hi>">

i had to do it this way

<add key="test" value="<hi>">

that worked, but it would be too hard for the user to edit and not make mistakes when the XML grows, so i was wondering if there is any way I could just put my xml tags somewhere in the .config file where it doesn't make the application crash

something like this

<configuration>
<appsettings>
<add key="serverPath" value="http://localhost">

<mytag>
<moretags>blah

I basically want to avoid that some settings are stored in the .config file and others in a different XML file

Thanks in advance

Re: custom sections in .config files

Anonymous22-May-03 6:45

Anonymous

22-May-03 6:45

I have a Windows Forms application that requires to read an XML, i know you can put something like

< add key="serverPath" value="http://localhost/something.aspx" / >

but in the case the value is XML what can I do? i tried to put the xml inside the value but it didnt work

< add key="test" value="< hi >" / >

i had to do it this way

< add key="test" value="<hi>" / >

that worked, but it would be too hard for the user to edit and not make mistakes when the XML grows, so i was wondering if there is any way I could just put my xml tags somewhere in the .config file where it doesn't make the application crash

something like this

< configuration >
< appSettings >
< add key="serverPath" value="http://localhost" / >
< /appSettings >

< myTag >
< moreTags > blah < /moreTags >
< /myTag >
< /configuration >

I basically want to avoid that some settings are stored in the .config file and others in a different XML file

Thanks in advance

Re: custom sections in .config files

Anonymous22-May-03 6:48

Anonymous

22-May-03 6:48

this is getting complicated to post

when i wrote "i had to do it this way" and the sentence looks identical i wrote

& lt; hi & gt;

the question at the end is can i add my own tags to the .config file?

Thanks

Re: custom sections in .config files

The Limey22-May-03 16:54

The Limey

22-May-03 16:54

Damn the board did it to me too.

<configsections>

<customsettings>
<add key="x" value="y">

Reading your custom section
GetConfig("customsettings")("x")

Hope this helps

He who laughs last thinks slowest.

Re: custom sections in .config files

The Limey22-May-03 16:56

The Limey

22-May-03 16:56

Damn the board did it to me too.

<configSections>
<section name="customSettings"/>
</configSections>

<customSettings>
<add key="x" value="y" />
</customSettings>

Reading your custom section
GetConfig("customsettings")("x")

He who laughs last thinks slowest.

Owner Drawn Menu item -- Matching Font?

KingTermite22-May-03 6:20

KingTermite

22-May-03 6:20

I have a menu which I have to owner draw the few menu items which contain icons. I snagged the code to do this from Petzold's Prgramming Windows in C# book. It helped a lot, but one thing that bothers me is the hardcoded font size and unknown style.

It comes up looking odd because the font is slightly different than the rest of the context menu.

I need to to find two items.
1. Default system font and font size for menu items.
2. Background color

Default size and font to match font itself. Is there something like SystemColors class that I can get into for the proper font style adn size for menu items.

When 2 is discovered, how do I changed the background color of the drawn menu item rectangle? It looks fine on my machine which is XP and the background is white already. When I ran my proggy on Win2K, the regular items had the standard silver/gray background, but my owner drawn items have a white background. Yuck!

Example of my current owner drawn menu items (measure and draw) are below for reference.

<code>
<COLOR=008000>// Measure Item override for the AddSmiley context menu item owner draw
        </COLOR><COLOR=0000ff>private void </COLOR><COLOR=800080>MeasureItemAddSmileyMenuItem</COLOR>(<COLOR=0000ff>object </COLOR><COLOR=800080>obj</COLOR>, <COLOR=800080>MeasureItemEventArgs miea</COLOR>)
        {
            <COLOR=0000ff>int </COLOR><COLOR=800080>iFontPointSize </COLOR><COLOR=008000>= </COLOR><COLOR=ff0000>10</COLOR>;
            <COLOR=800080>MenuItem mi </COLOR><COLOR=008000>= </COLOR>(<COLOR=800080>MenuItem</COLOR>)<COLOR=800080>obj</COLOR>;
            <COLOR=800080>Font ItemFont </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>Font</COLOR>(<COLOR=800080>mi</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Text</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Substring</COLOR>(<COLOR=ff0000>1</COLOR>), <COLOR=800080>iFontPointSize</COLOR>);
            <COLOR=800080>StringFormat strfmt </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>StringFormat</COLOR>();
            <COLOR=800080>SizeF sizef </COLOR><COLOR=008000>= </COLOR><COLOR=800080>miea</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>MeasureString</COLOR>(<COLOR=800080>mi</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Text</COLOR>, <COLOR=800080>ItemFont</COLOR>, <COLOR=ff0000>1000</COLOR>, <COLOR=800080>strfmt</COLOR>);
            
<COLOR=800080>CSmilies oSmile </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>CSmilies</COLOR>(<COLOR=ff0000>2</COLOR>);
            <COLOR=800080>Bitmap bmSmiley </COLOR><COLOR=008000>=  </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>Bitmap</COLOR>(<COLOR=0000ff>typeof</COLOR>(<COLOR=800080>vBCodeGenForm</COLOR>),<COLOR=800080>oSmile</COLOR><COLOR=008000>.</COLOR><COLOR=800080>SmileyIconFileName</COLOR>);

            <COLOR=800080>miea</COLOR><COLOR=008000>.</COLOR><COLOR=800080>ItemWidth </COLOR><COLOR=008000>=  </COLOR>(<COLOR=0000ff>int</COLOR>)<COLOR=800080>Math</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Ceiling</COLOR>(<COLOR=800080>sizef</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>) <COLOR=008000>+ </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>;
            <COLOR=800080>miea</COLOR><COLOR=008000>.</COLOR><COLOR=800080>ItemHeight </COLOR><COLOR=008000>= </COLOR>(<COLOR=0000ff>int</COLOR>)<COLOR=800080>Math</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Ceiling</COLOR>(<COLOR=800080>sizef</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height</COLOR>) <COLOR=008000>+ </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height</COLOR>;
        }


<COLOR=0000ff>private void </COLOR><COLOR=800080>DrawmenuItemSmiley1</COLOR>(<COLOR=0000ff>object </COLOR><COLOR=800080>sender</COLOR>,  <COLOR=800080>System</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Windows</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Forms</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawItemEventArgs e</COLOR>)
        {
            <COLOR=0000ff>int </COLOR><COLOR=800080>iFontPointSize </COLOR><COLOR=008000>= </COLOR><COLOR=ff0000>10</COLOR>;
            <COLOR=800080>MenuItem mi </COLOR><COLOR=008000>= </COLOR>(<COLOR=800080>MenuItem</COLOR>)<COLOR=800080>sender</COLOR>;
            <COLOR=800080>Font ItemFont </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>Font</COLOR>(<COLOR=800080>mi</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Text</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Substring</COLOR>(<COLOR=ff0000>1</COLOR>), <COLOR=800080>iFontPointSize</COLOR>);
            <COLOR=800080>Brush brush</COLOR>;
            <COLOR=800080>StringFormat strfmt </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>StringFormat</COLOR>();

            <COLOR=008000>// Center the text portion (out to side of image portion)
</COLOR><COLOR=800080>strfmt</COLOR><COLOR=008000>.</COLOR><COLOR=800080>LineAlignment </COLOR><COLOR=008000>= </COLOR><COLOR=800080>System</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Drawing</COLOR><COLOR=008000>.</COLOR><COLOR=800080>StringAlignment</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Center</COLOR>;

<COLOR=800080>CSmilies oSmile </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>CSmilies</COLOR>(<COLOR=ff0000>0</COLOR>);
            <COLOR=800080>Bitmap bmSmiley </COLOR><COLOR=008000>=  </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>Bitmap</COLOR>(<COLOR=0000ff>typeof</COLOR>(<COLOR=800080>vBCodeGenForm</COLOR>),<COLOR=800080>oSmile</COLOR><COLOR=008000>.</COLOR><COLOR=800080>SmileyIconFileName</COLOR>);

            <COLOR=008000>// Rectangle for image portion
            </COLOR><COLOR=800080>Rectangle rectImage </COLOR><COLOR=008000>= </COLOR><COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR>;

            <COLOR=008000>// Set image rectangle same dimensions as image
            </COLOR><COLOR=800080>rectImage</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width </COLOR><COLOR=008000>= </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>;
            <COLOR=800080>rectImage</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height </COLOR><COLOR=008000>= </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height</COLOR>;
            

            <COLOR=800080>Rectangle rectText </COLOR><COLOR=008000>= </COLOR><COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR>;
            <COLOR=800080>rectText</COLOR><COLOR=008000>.</COLOR><COLOR=800080>X </COLOR><COLOR=008000>+= </COLOR><COLOR=800080>rectImage</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>;
            <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawBackground</COLOR>();

            <COLOR=0000ff>if </COLOR>( (<COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>State </COLOR><COLOR=008000>& </COLOR><COLOR=800080>DrawItemState</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Selected</COLOR>) <COLOR=008000>!= </COLOR><COLOR=ff0000>0</COLOR>)
            {
                <COLOR=800080>brush </COLOR><COLOR=008000>= </COLOR><COLOR=800080>SystemBrushes</COLOR><COLOR=008000>.</COLOR><COLOR=800080>HighlightText</COLOR>;
            }
            <COLOR=0000ff>else
            </COLOR>{
                <COLOR=800080>brush </COLOR><COLOR=008000>= </COLOR><COLOR=800080>SystemBrushes</COLOR><COLOR=008000>.</COLOR><COLOR=800080>FromSystemColor</COLOR>(<COLOR=800080>SystemColors</COLOR><COLOR=008000>.</COLOR><COLOR=800080>MenuText</COLOR>);
            }
            <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawImage</COLOR>(<COLOR=800080>bmSmiley</COLOR>, <COLOR=800080>rectImage</COLOR>);
            <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawString</COLOR>(<COLOR=800080>mi</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Text</COLOR>, <COLOR=800080>ItemFont</COLOR>, <COLOR=800080>brush</COLOR>, <COLOR=800080>rectText</COLOR>, <COLOR=800080>strfmt</COLOR>);
        }
</code>

There are only 10 types of people in this world....those that understand binary, and those that do not.

Re: Owner Drawn Menu item -- Matching Font?

KingTermite22-May-03 16:06

KingTermite

22-May-03 16:06

Nobody seemed to know, but I was able to figure it out with a little help from this article right here at Code Project:
<url>http://www.codeproject.com/cs/menu/MenuImage.asp

I am reposting my DrawItem as it is now to show the correct way to do so in case anyone else runs into the same question.

<br />
        <COLOR=008000>// DrawItem override for the AddSmiley context menu item owner draw<br />
        </COLOR><COLOR=0000ff>private void </COLOR><COLOR=800080>DrawAddSmileyMenuItem</COLOR>(<COLOR=0000ff>object </COLOR><COLOR=800080>sender</COLOR>,  <COLOR=800080>System</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Windows</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Forms</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawItemEventArgs e</COLOR>)<br />
        {<br />
            <COLOR=800080>MenuItem mi </COLOR><COLOR=008000>= </COLOR>(<COLOR=800080>MenuItem</COLOR>)<COLOR=800080>sender</COLOR>;<br />
            <br />
            <COLOR=008000>// Default menu font<br />
            </COLOR><COLOR=800080>Font menuFont </COLOR><COLOR=008000>= </COLOR><COLOR=800080>SystemInformation</COLOR><COLOR=008000>.</COLOR><COLOR=800080>MenuFont </COLOR>;<br />
            <COLOR=800080>SolidBrush menuBrush </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>null </COLOR>;<br />
            <br />
            <COLOR=008000>// Determine menu brush for painting<br />
            </COLOR><COLOR=0000ff>if </COLOR>( <COLOR=800080>mi</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Enabled </COLOR><COLOR=008000>== </COLOR><COLOR=0000ff>false </COLOR>)<br />
            {<br />
                <COLOR=008000>// disabled text<br />
                </COLOR><COLOR=800080>menuBrush </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>SolidBrush</COLOR>( <COLOR=800080>SystemColors</COLOR><COLOR=008000>.</COLOR><COLOR=800080>GrayText </COLOR>) ;<br />
            }<br />
            <COLOR=0000ff>else<br />
            </COLOR>{<br />
                <COLOR=0000ff>if </COLOR>( (<COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>State </COLOR><COLOR=008000>& </COLOR><COLOR=800080>DrawItemState</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Selected</COLOR>) <COLOR=008000>!= </COLOR><COLOR=ff0000>0</COLOR>)<br />
                {<br />
                    <COLOR=008000>// Text color when selected (highlighted)<br />
                    </COLOR><COLOR=800080>menuBrush </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>SolidBrush</COLOR>( <COLOR=800080>SystemColors</COLOR><COLOR=008000>.</COLOR><COLOR=800080>HighlightText </COLOR>) ;<br />
                }<br />
                <COLOR=0000ff>else<br />
                </COLOR>{<br />
                    <COLOR=008000>// Text color during normal drawing<br />
                    </COLOR><COLOR=800080>menuBrush </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>SolidBrush</COLOR>( <COLOR=800080>SystemColors</COLOR><COLOR=008000>.</COLOR><COLOR=800080>MenuText </COLOR>) ;<br />
                }<br />
            }<br />
<br />
            <COLOR=008000>// Center the text portion (out to side of image portion)<br />
            </COLOR><COLOR=800080>StringFormat strfmt </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>StringFormat</COLOR>();<br />
            <COLOR=800080>strfmt</COLOR><COLOR=008000>.</COLOR><COLOR=800080>LineAlignment </COLOR><COLOR=008000>= </COLOR><COLOR=800080>System</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Drawing</COLOR><COLOR=008000>.</COLOR><COLOR=800080>StringAlignment</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Center</COLOR>;<br />
<br />
            <COLOR=008000>// Smiley #2 is the image<br />
            </COLOR><COLOR=800080>CSmilies oSmile </COLOR><COLOR=008000>= </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>CSmilies</COLOR>(<COLOR=ff0000>2</COLOR>);<br />
            <COLOR=800080>Bitmap bmSmiley </COLOR><COLOR=008000>=  </COLOR><COLOR=0000ff>new </COLOR><COLOR=800080>Bitmap</COLOR>(<COLOR=0000ff>typeof</COLOR>(<COLOR=800080>vBCodeGenForm</COLOR>),<COLOR=800080>oSmile</COLOR><COLOR=008000>.</COLOR><COLOR=800080>SmileyIconFileName</COLOR>);<br />
<br />
            <COLOR=008000>// Rectangle for image portion<br />
            </COLOR><COLOR=800080>Rectangle rectImage </COLOR><COLOR=008000>= </COLOR><COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR>;<br />
<br />
            <COLOR=008000>// Set image rectangle same dimensions as image<br />
            </COLOR><COLOR=800080>rectImage</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width </COLOR><COLOR=008000>= </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>;<br />
            <COLOR=800080>rectImage</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height </COLOR><COLOR=008000>= </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height</COLOR>;<br />
            <COLOR=800080>Rectangle rectText </COLOR><COLOR=008000>= </COLOR><COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR>;<br />
            <COLOR=800080>rectText</COLOR><COLOR=008000>.</COLOR><COLOR=800080>X </COLOR><COLOR=008000>+= </COLOR><COLOR=800080>rectImage</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>;<br />
<br />
            <COLOR=008000>// Start Drawing the menu rectangle<br />
<br />
            // Fill rectangle with proper background <use this instead of e.DrawBackground() ><br />
            </COLOR><COLOR=0000ff>if </COLOR>( (<COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>State </COLOR><COLOR=008000>& </COLOR><COLOR=800080>DrawItemState</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Selected</COLOR>) <COLOR=008000>!= </COLOR><COLOR=ff0000>0</COLOR>)<br />
            {<br />
                <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>FillRectangle</COLOR>(<COLOR=800080>SystemBrushes</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Highlight</COLOR>, <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR>);            }<br />
            <COLOR=0000ff>else<br />
            </COLOR>{<br />
                <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>FillRectangle</COLOR>(<COLOR=800080>SystemBrushes</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Menu</COLOR>, <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR>);            <br />
            }<br />
            <br />
            <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawImage</COLOR>(<COLOR=800080>bmSmiley</COLOR>, <COLOR=800080>rectImage</COLOR>);<br />
            <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Graphics</COLOR><COLOR=008000>.</COLOR><COLOR=800080>DrawString</COLOR>( <COLOR=800080>mi</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Text</COLOR>, <COLOR=800080>menuFont</COLOR>, <COLOR=800080>menuBrush</COLOR>, <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Left </COLOR><COLOR=008000>+ </COLOR><COLOR=800080>bmSmiley</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Width</COLOR>, <COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Top </COLOR><COLOR=008000>+ </COLOR>((<COLOR=800080>e</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Bounds</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height </COLOR><COLOR=008000>- </COLOR><COLOR=800080>menuFont</COLOR><COLOR=008000>.</COLOR><COLOR=800080>Height</COLOR>) <COLOR=008000>/ </COLOR><COLOR=ff0000>2</COLOR>), <COLOR=800080>strfmt </COLOR>) ;<br />
        }<br />

There are only 10 types of people in this world....those that understand binary, and those that do not.

setting up path for c#

Slow Learner22-May-03 4:44

Slow Learner

22-May-03 4:44

Hi there,
I have partitioned my hard drive and loaded my visula studion.net in D: drive. I have created a virtual directory, ASP.NET and mapped it to D:/asp.net .When I was trying to compile a small c# application using csc.exe at the command prompt(csc FirstApp.cs) its popping up the following error message.

'csc' is not recognized as an internal or external command,
operable program or batch file.

I guess its coz' the path isn't set up. But i don't know how do i set the path for c# compiler. Please help me some one.
thanks in advance
dev

Re: setting up path for c#

Daniel Turini22-May-03 5:04

Daniel Turini

22-May-03 5:04

Start/Program Files/Microsoft Visual Studio.NET/Visual Studio.NET Tools/Visual Studio.NET Command Prompt.

I suggest you to copy this shortcut to a shorter path Big Grin | :-D

My latest article: GBVB - Converting VB.NET code to C#

Re: setting up path for c#

Slow Learner23-May-03 9:08

Slow Learner

23-May-03 9:08

HI Daniel,
I got it thanks for the help. I am sure many a doubts would raise if i move further deep into the subject... I think i can learn much from here. I really appreciate all people like you Smile | :)

thanks
dev

Array of Hashes

JJF00722-May-03 3:48

JJF007

22-May-03 3:48

I want to write a subroutine which fetches data from a database, save column to a hashtable (columname=columnvalue) and then put each dataset hashtable into an array ... then i want to return this array to the main program and run through each element and dereference the element back to a hashtable ... in perl i know how to do this - but have no clue how this had to be writen in c# ... (perl: %hash = %$array[element])

i trie something to put a hashtable into an array of string[] but i don't know how to get the hash back from the element of the string[] ...

Thanks for your help!

Matthias

Re: Array of Hashes

CBoland22-May-03 8:24

CBoland

22-May-03 8:24

This may seem obvious, but have you tried System.Collections.Hastable? If you are working with only strings, the System.Collections.Specialized.NameValueCollection may offer better performance..

Re: Array of Hashes

Arjan Einbu22-May-03 8:28

Arjan Einbu

22-May-03 8:28

//Create array of hashtables<br />
HashTable[] ha = new HashTable[number_of_elements_in_array]();<br />
<br />
//create a hashtable and populate it<br />
HashTable h = new HashTable();<br />
h.Add(key, value);<br />
<br />
//insert hashtable into array<br />
ha[array_element_number] = h;<br />

Now you pass your ha array around, and get the hashtables back like this:

<br />
HashTable h = ha[array_element_number];<br />

If you defined your array in another way, like object[] or so, you will have to do a cast when retrieving the hashtable.

Re: Array of Hashes

JJF00722-May-03 22:40

JJF007

22-May-03 22:40

Thanks Arjan - works fine!

Re: Array of Hashes

Burt Harris23-May-03 19:00

Burt Harris

23-May-03 19:00

Sounds like your trying to apply Perl design to a C# program. Before you go too far, you should first try to understand the database access classes in the System.Data namespace. A DataTable acts a lot like an array of DataRows, where individual fields can be accessed by name.

But if you really want something like a perl array of hashes, it might look like this:

using System.Collections;
...
            ArrayList a = new ArrayList();
            Hashtable h = new Hashtable();
            h.Add( "One", 1 );
            h.Add( "Two", 2 );
            a.Add( h );

            // Later
            h = (Hashtable)a[0];
            Console.WriteLine( h["One"] );

Burt Harris

Toolbar HotKey

STW22-May-03 1:54

STW

22-May-03 1:54

I have a Form with a toolbar. The toolbar contains some Buttons with Text like "&New", "&Edit", ...
I meant that marking the Buttons as HotKey is enough to allow access via ALT+"N", ALT+"E", ...to fire the ClickEvent.
So how is it possible that Toolbar Buttons react on Keyboard Inputs like normal Buttons with HotKey?

Thanks

Stefan

Does C# have Template like C++ ??

JeffSayHi21-May-03 23:10

JeffSayHi

21-May-03 23:10

I want to write a LinkList Libary use "Template", but I must write in C# and C# doesn't have "Template"! How do I do? or How can I do? thx!

Re: Does C# have Template like C++ ??

Giles22-May-03 2:20

Giles

22-May-03 2:20

No, but it will do, maybe in the next release.

As an aside while they are called templates in C++, they will probably be refered to as Generics in other languages e.g. Java - which has just had them added in 1.5.

As for LinkList, have a look at the .NET collections classes under "System.Collections".

Shameless Plug - Distributed Database Transactions in .NET using COM+

Re: Does C# have Template like C++ ??

Jon Newman22-May-03 5:12

Jon Newman

22-May-03 5:12

Since we have to wait for Whidbey (.NET 2) for true Generics to be implemented, I read an interesting article on GotDotNet.com about using a basic version of Generics by using objects. Since all entities in .NET derive from the Object class, anything can be boxed as an object.

Visit
http://www.gotdotnet.com/team/csharp/learn/Future/VCS%20Language%20Changes.aspx[^]
And look under "Building Generic classes today"

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Jonathan 'nonny' Newman
Homepage [www.nonny.com] [^]

DBF File Read in DataGrid?

bania21-May-03 21:54

bania

21-May-03 21:54

Hello!

I want to import DBF file and to bind DataGrid in WinForm.

Is there anybody who knows bind DBF file with DataGrid?

Thanks!! Smile | :)

I'm not who I was

Re: DBF File Read in DataGrid?

Rocky Moore21-May-03 23:02

Rocky Moore

21-May-03 23:02

bania wrote:
import DBF file

Are you referring to a "Data Base File", "DBase" file, or another type of file? If you are referring to some form of database, simply use ADO.NET. Even the wizards in VS.NET (if you have that) will build most of that for you. In the constructor for the form after the call to InitializeComponents, add in the code to fill a dataset and bind it to the gird.

Many examples on CP for that.

Rocky Moore <><

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