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1 - Develop a function to translate a color name to color code:
White #FFFFFF
RED #FF0000
GREEN #00FF00
Blue #0000FF
2- When web browser send data to web server using the URL, It encode all character by place the percentage symbol(%) and two hexadecimal digits, It also converts the space character to (+) symbol
for example the text "Abc-2&3" will be encode as "Abc%2d2%236"
Develop a function to decode a string send by the web browser.
Can U help me to solve these exercices
Thanks alottttttttttttttttttttttttttttt!
I tried so hard and got so far
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What specifically is is that you have problems with?
What are you studying currently? What techniques are you supposed to use in these execises? Most of the first task and the entire second task can be solved by using built-in methods in the framework, but I suppose that this is not the intention of the exercises?
---
b { font-weight: normal; }
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hi
i am working on vb, I have a problem in image manipulation
Is there any way to know height and width of the image at runtime
if anybody knows this please help me.
Thanks
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Hello
Dim pic_image As New Bitmap("c:\sample.jpg")<br />
MsgBox(pic_image.Size.Height & "---" & pic_image.Size.Width)
Hope it helps
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Thanks i Think it will worked
but could you tell me which reference library i have to use for bitmap
Thanks
-- modified at 8:16 Thursday 23rd March, 2006
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Hello
You have to reference the System.Drawing library
Then in top of your class insert:
Imports System.Drawing
That's it
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yes that's good!
Adrian De Battista: .Net Programmer, Java Programmer and Web Designer.
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hi
It is working in vb.net but not in vb6.0 because in vb 6.0 there is no any class like bitmap in system.drawing.dll.
if you have any other idea so please!
Thanks
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The simplest way in vb6 is to add aninvisible picture box and do the following to load the picture and obtain the height width
PicBox.Picture = LoadPicture("C:\1.jpg")
PicBox.AutoSize = True
MsgBox PicBox.Width
MsgBox PicBox.Height
Me.Show
"If i was king cigarettes would be free."
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THNAKS IT SOLVED MY PROBLEM
Thanks
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Frenz,
In my current project, I have some problems with printing. i.e.,
Print Preview is perfect but "Printable text is invisable on Printout"
briefly: I defined a method for draw a string in a rectangle box. there after I called this method in a while loop to print severaltimes by separating with a line on my printdocument. when I check preview of the print document, that is in perfect way. but in printout doesn't have a text within a rectangle boxex.
I don't know exactly what is the problem? plz solve it if possiable.
wish me as All The BEST.
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RadioButtonList?
Is this ASP.NET?
"If i was king cigarettes would be free."
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i am creating my listview control , and i created inherited column controls collection and Column header with some features , but the problem is that it doesnot save my columns
whenever i close the form and reopen it again , it goes away all the columns that i made.
how can i slove this is problem ,
Best Regards
Michael L. Gabriel
mgabriel@gaeasoft.net
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Hi Guys, I am working on VB.NET/Access. Consider the data 0000011. I am writing the data in CSV format to a file. When I open the file with notepad, the data looks correct. However, when I open in excel, the leading zeros are truncated. It appears as a number.
how do you write such data to open correctly in excel.
With Best Regards,
Mayur
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You need to convert the cell to 'Text' format and not 'General'. By default excel will automatically exclude leading Zero's in a 'General' Formatted Cell!
Highlight the whole column and right click, select 'Format cells' and change the format to 'Text'.
Hope this helps.
Gary
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Even if I convert the cell to TEXT, the result is the same.
With Best Regards,
Mayur
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It Will be!
You need to use the import wizard in excel and select the cell type to be text.
If you load the file then try changing the column to text it will not do anything, as the leading zero's have already been taken out.
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I have an XML file which I am reading throuh XMLTextReader. Now instead of traversing every element of XML , I just want to retrieve value of a particular start element. This start element is occusring many times in XML file .
How can i retrieve value of only this start element in full XML ? Any suggestions ??
Divya Rathi
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Try Looping the required statement with Instr() function
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Hi to all,
I'm trying to develop a query tool. Actually I want to run query like:
SELECT * FROM MyTable WHERE MyField = :variable 
The problem is that I don't know at the time of running the query, which query is and how many parameters I have.
I understood I have to use the Command.Parameters collection, but I'm still looking for some snippets because I didn't found so many examples.
Any suggestion are appreciated. 
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I don't understand what you are aiming for here.
Can you explain a little more?
What database server are you using?
What is the purpose of this?
If you can then i will try to help
"If i was king cigarettes would be free."
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Hi,
Does anyone know of a good demo project or article on simply drawing a rectangle with the mouse over an image? (It's for a small app I want to create to resize an image). I've looked around but can't find anything to get me started... I guess it's some GDI+ stuff I need to do but am not sure.
Ideally the rectangle would be able to be resized after it was drawn (a la Photoshop etc) but I can live without that if I have to.
Any tips or pointers on how/where to get started would be appreciated.
TIA...
Mike
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Hello
Here is the code how to draw a rectangle on a picture box named picmain:
Dim startX As Integer<br />
Dim StartY As Integer<br />
<br />
Private Sub picmain_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles picmain.MouseMove<br />
If e.Button = MouseButtons.Left Then<br />
picmain.Refresh()<br />
Dim g As Graphics = Graphics.FromHwnd(picmain.Handle)<br />
Dim myPen As Pen = New Pen(Color.Red)<br />
myPen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash<br />
g.DrawRectangle(myPen, startX, StartY, Math.Abs(startX - e.X), Math.Abs(StartY - e.Y))<br />
End If<br />
End Sub<br />
<br />
Private Sub picmain_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles picmain.MouseDown<br />
startX = e.X<br />
StartY = e.Y<br />
End Sub
The resizing will be up to you.
Hope it helps
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if you swap this line
g.DrawRectangle(myPen, startX, StartY, Math.Abs(startX - e.X), Math.Abs(StartY - e.Y))
with
If e.X < startX And e.Y < StartY Then
g.DrawRectangle(myPen, e.X, e.Y, Math.Abs(startX - e.X), Math.Abs(StartY - e.Y))
ElseIf e.X > startX And e.Y < StartY Then
g.DrawRectangle(myPen, startX, e.Y, Math.Abs(e.X - startX), Math.Abs(e.Y - StartY))
ElseIf e.X < startX And e.Y > StartY Then
g.DrawRectangle(myPen, e.X, StartY, Math.Abs(e.X - startX), Math.Abs(e.Y - StartY))
Else
g.DrawRectangle(myPen, startX, StartY, Math.Abs(startX - e.X), Math.Abs(StartY - e.Y))
End If
then you can draw the rectangle in any direction
"If i was king cigarettes would be free."
-- modified at 10:43 Thursday 23rd March, 2006
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Thanks so much guys - that was exactly what I wanted!! I did get started with code very similiar but couldn't work out how to not draw every rectangle (instead of the just the current one) and also hadn't got it to work from any direction so I'm grateful for both tips.
Cheers,
Mike
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