C# Discussion Boards - CodeProject

Re: how do execute the textbox script value at dynamically in .net with c#

Christian Graus6-Apr-08 21:22

6-Apr-08 21:22

Please read the article I link to in my sig. As an example, I found there is heaps of info on google[^], if you read my article, perhaps you'll get a better idea on how to use it ?

Christian Graus

Please read this if you don't understand the answer I've given you

"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 )

conversion problem!

yassir hannoun6-Apr-08 15:13

yassir hannoun

6-Apr-08 15:13

how can i convert color form a hex format to a byte format? in other words how to convert from hex to argb
thx

Re: conversion problem!

Christian Graus6-Apr-08 15:48

Christian Graus

6-Apr-08 15:48

You mean if you have 0xFFFFFF, how to turn that into argb ? Something like this

int color = 0xFFFFFF;
byte alpha = (byte)((color && 0xFF000000) << 24);
byte red = (byte)((color && 0xFF0000) << 16);
byte green = (byte)((color && 0xFF00) << 8);
byte blue = (byte)((color && 0xFF)));

Something like that. Use the && to strip the other bits, and a bit shift to move it down to be just a byte.

Re: conversion problem!

yassir hannoun7-Apr-08 3:40

yassir hannoun

7-Apr-08 3:40

so how can i get a value from a textbox and then convert it

Re: conversion problem!

Pete O'Hanlon7-Apr-08 4:19

Pete O'Hanlon

7-Apr-08 4:19

Get the .Text string and then apply Christian's code to it.

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Re: conversion problem!

Christian Graus7-Apr-08 11:43

Christian Graus

7-Apr-08 11:43

Please, please, please buy a beginners book and read it.

Re: conversion problem!

yassir hannoun7-Apr-08 13:19

yassir hannoun

7-Apr-08 13:19

well here is the way i got it to work

<br />
int Color;       <br />
Color = int.Parse(TextBox1.Text, NumberStyles.HexNumber); <br />

Re: conversion problem!

Christian Graus7-Apr-08 17:38

Christian Graus

7-Apr-08 17:38

OK, what this does is not what you asked for. This gives you a a single number, no color information at all.

Re: conversion problem!

Insincere Dave6-Apr-08 17:40

Insincere Dave

6-Apr-08 17:40

If you have it as a string use ColorTranslator.FromHtml.

DataTable Click Event

Sean Cleary6-Apr-08 13:48

Sean Cleary

6-Apr-08 13:48

I have a DataGridView (called dgStandings) that has a datasource of a datatable (called dtLeader). I want to fire an event when someone double clicks a cell in the datagrid view and have a new window load with data depending on what cell is clicked. Unfortunately, none of the events I make (CellMouseDoubleClick,CellContentDoubleClick,CellMouseUp) ever fire an event. In fact, the events above only fire when I click/doubleclick on one of the header cells in dgStandings.

So how can I fire an event when I doubleclick a cell in dgStandings?

Re: DataTable Click Event

kaddim7-Apr-08 7:00

kaddim

7-Apr-08 7:00

Please post code containing the declaration of the DataGridView, the loading of its data, and the methods you've created to handle the event(s). That should help get a clearer picture of what might be hanging you up.

Re: DataTable Click Event

jtvberg10-Apr-08 15:07

jtvberg

10-Apr-08 15:07

hook to the DataGridView's CellDoubleClick event
if selecting by row do a

foreach (DataGridViewRow row in this.dgStandings.SelectedRows)<br />
{<br />
goGetYourNewDataMethodWhichTakesAString(row.Cells[0].Value.ToString());<br />
}

where the cell index is the cell you want

or for multiple cells

foreach (DataGridViewCell cell in this.dgStandings.SelectedCells)<br />
{<br />
goGetYourNewDataMethodWhichTakesAStringcell.Value.ToString();<br />
}

or even more simply

goGetYourNewDataMethodWhichTakesAString(this.dgStandings.SelectedCells[0].Value.ToString());

Automatic sizing of Textbox at runtime depending on number of lines it contains

karan19816-Apr-08 10:17

karan1981

6-Apr-08 10:17

Hi,

I have a user control that has a textbox.
This user control is placed in a form at runtime. This form gives a string to the user control and the textbox is to show this in multiple lines.(i do so using a property to set the textbox's text property)
So in designer view i set the multiline property to TRUE and
the word wrap property to TRUE.
This enables the text to be shown in multiple lines at runtime.
But the textbox size does not grow according to the number of lines of text that it contains.
I dont want to use scrolls.
Please suggest how to set the size of the textbox to adjust according to the number of lines it has at runtime. So that all lines are shown. and i can accordingly place other contols below it.

Thanks

Re: Automatic sizing of Textbox at runtime depending on number of lines it contains

Christian Graus6-Apr-08 11:10

Christian Graus

6-Apr-08 11:10

Write your own class derived from the textbox. When the user hits enter, measure the string, if it doesn't fit, make the textbox get bigger.

Re: Automatic sizing of Textbox at runtime depending on number of lines it contains

karan19817-Apr-08 7:38

karan1981

7-Apr-08 7:38

Hi Christian

Thanks for replying.
In designer view, My textbox just fits in one line of string.
At runtime it could get a very long string.
Thus as Multiline is true the rest of the text comes in the next line and so on.
But unfortunetely my textbox size remains the same.
I need it to grow(vertically) with the numbers of line at runtime.
I dont want to use scroll bars.
could u please suggest how to go about this.

Thanks alot. really appreciate your help.
Karan

Re: Automatic sizing of Textbox at runtime depending on number of lines it contains

Christian Graus7-Apr-08 11:45

Christian Graus

7-Apr-08 11:45

If you're not hitting enter to go to the next line, then you need on each keypress to use the measurestring method of hte graphics class to work out if the text is too big for the control, and if so, change it's size

Re: Automatic sizing of Textbox at runtime depending on number of lines it contains

karan19819-Apr-08 4:14

karan1981

9-Apr-08 4:14

Hi Christian

Thanks for the reply.
Will try this.

Context Menu Owner

greekius6-Apr-08 8:01

greekius

6-Apr-08 8:01

Hi all
at run time i add controls to form. i set controls contextmenu property to contextmenustrip1 whish has 3 sub menus. i wanna make something to control (like changing backcolor) when user click Menu1ToolStripMenuItem.

i need like at below

 Private Sub Menu1ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Menu1ToolStripMenuItem.Click<br />
   sender)<br />
<br />
Menu1ToolStripMenuItem.Owner .ContextMenu .attainedControl.BackColor=red<br />
<br />
    End Sub

How could i find "Attained Control"

Re: Context Menu Owner

Luc Pattyn6-Apr-08 8:08

Luc Pattyn

6-Apr-08 8:08

Hi,

the sender parameter contains the sending object, you should cast it to what you expect,
here a menu item.

Smile | :)

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Re: Context Menu Owner

greekius6-Apr-08 8:29

greekius

6-Apr-08 8:29

i think u got me wrong.

i wanna catch which control has that context menu which button clicked.

Re: Context Menu Owner

Giorgi Dalakishvili6-Apr-08 8:10

Giorgi Dalakishvili

6-Apr-08 8:10

I guess you are looking for ContextMenuStrip..::.SourceControl Property[^]

Giorgi Dalakishvili

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Re: Context Menu Owner

greekius6-Apr-08 8:41

greekius

6-Apr-08 8:41

thank you

Re: Context Menu Owner

Giorgi Dalakishvili6-Apr-08 8:52

Giorgi Dalakishvili

6-Apr-08 8:52

Glad to help you Smile | :)

Giorgi Dalakishvili

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how to change an existing console application into a service dll

stephan_0076-Apr-08 7:21

stephan_007

6-Apr-08 7:21

hy everyone!

i realized a console appliction which works perfect. but i was wondering what i will have to do to change it into a service dll?

i know the easiest way is to do it as a dll from the beginning. you are able to switch to dll instead of executable in the settings but this won't create a service dll which i am able to install.

does anyone of you have something like a "cookbook" of how to change a console appliction into a service dll? because this would help me a lot and it would avoid me having to start with my program once again.

thanks.
stephan.

Re: how to change an existing console application into a service dll

Giorgi Dalakishvili6-Apr-08 7:57

Giorgi Dalakishvili

6-Apr-08 7:57

What do you mean by 'service dll' ? Have a look at this article: HybridService: Easily Switch Between Console Application and Service[^]

Giorgi Dalakishvili

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