Dim phoneNumber As String = "077 47578 587(num)"How do i strip the above string off every character which isnt a number. So only the numbers are left and then check to make sure it is 11 characters long?
View 4 RepliesI have a string that I need to split. I need both parts of the string returned.
I need to split the string after the last alpha character and create a string array from the 2 seperate results.
The string will always varry, but there will always be at least 1 alpha char at the beginning of the string. Here are some examples:
AB1/2
Should return as "AB" and "1/2"
ABC1 1/4
[Code]....
dear all i have a list<string> which has the following c1, c1a, c30, c3a, c2,c4b ,c10b,c10a
i cant use the in built sorting function because it gives me in this order
c1
c1a
c10b
[Code]....
ie i want to sort based on second intiger in numeric order ie 1,2,3,...10...30 and then the third a,b,c etc for example c10a,c10b,c10c
I have PNG and need to know if it has an alpha (or if the alpha is completely white)? How can I accomplish this in vb.net code.
View 1 RepliesI nedd some help in generating a random alph-numeric password for a form that I building. The form should suggest a password that 18 characters long. The user would either agree to this password or enter their own password.[code]When I use this I get a two digit number.
View 5 RepliesI have encrypted a string to something like this:
1. Asak2$)kla1015QAXKFskfa332aSJ2(Ska@Skljcmcel3p.lq,aowpqaskla2@)Skx.:Pdm^),dfs;
what i want to is convert this string to something like this
2. JXK2LB AP2WXB S1P0XE ZXPA3H X1LAKW DOXPS3
both 1 & 2 the above strings are fictitious (i made them up to make my point clear)
I am trying to make a licensing system for my VB 2010 express application. (2) above will act as a serial key which can be derived from (1) which is an encrypted form of something unique of the client computer.
I will then confirm the (2) from the client.
I know Val() is a VB6 function, but one thing I like about it is that you can wrap a string in it and it will "extract" the numerical value from the string if there are other things present (i.e. Val("123 Main St.") returns 123). This is the way my teacher taught us to use it. I know about the .TryParse and .Parse methods of the different data types, and how those can be used to check for a numerical value, but is there a replacement that can strip any non-numeric value from a string to put it in an integer (or double, single, decimal, etc.)?
View 14 RepliesI need to keep the first 5 words from returned string, stripping of the balance.eg. I want to keep "Stackoverflow is an amazing resources" from the word below Stackoverflow is an amazing resources for developers?
View 3 Repliesim trying to strip XML tags from a string. Ive got it working, but I want to add everything between the tags <dvd> </dvd> to list boxes. Currently it only adds the last thing that is between these tags, in this case ants. How do I get it to add Shrek II then Ants, then anything else that follows etc? Here is my
Private Sub btnSimpleStrip_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSimpleStrip.Click
Dim iStartTagPos As Integer ' Store start Position of the Start tag
Dim iEndTagPos As Integer
Dim iStartSearching As Integer
[Code]...
"Form1" has a ToolStripContainer1.TopToolStripPanel which contains a ToolStrip with buttons. The buttons work on ONE click when "Form1" is active.If I click on another window and then return to "Form1" the ToolStrip buttons take TWO clicks to activate.The first click returns focus to "Form1" and the subsequent click fires the button event.I want the buttons to work on the first click and not require two clicks.Note that ordinary buttons on "Form1" that are not part of the ToolStrip work on the first click when returning from another window/form?
View 1 RepliesI'm trying to match on some inconsistently formatted HTML and need to strip out some double quotes.
Current:
<input type="hidden">
The Goal:
<input type=hidden>
This is wrong because I'm not escaping it properly:
s = s.Replace(""","");
This is wrong because there is not blank character character (to my knowledge):
s = s.Replace('"', '');
What is syntax / escape character combination for replacing double quotes with an empty string?
The title says it all. How do I strip all punctuation from a string in vb.net? I really do not want to do stringname.Replace("$", "") for every single bit of punctuation, though it would work. How do i do this quickly and efficiently? Other than coding something that codes
View 3 RepliesHow to strip html code from a string? I know how to do this in Visual Basic 6 using Regular Expressions 5.5 as a reference, but since I switched to VB.NET 2008 today
View 1 RepliesI am trying to strip the first 75 characters from various strings (sentences / phrases) and it seems right but I need to ensure that the now words are truncated in the process. Meaning that if the 75 character is part of a word it needs to fall back to the beginning of the word or nearest space..
I thought of stripping the entire string into separate words and then counting the length of combining the words and stopping when I reach the target but what do I do in the case when it is not a valid sentence just a bunch of characters jammed together. I thought of using grammar parsing tool libraries and parsing into tokens etc but that seems to over complicated.
if text.length() > 75 then
ctext = text.remove(text.length, 75) & "..."
endif
I put elipses at the end but using the above I also get the error:
does anyone have any better suggestions.
I need to strip every other char from an array or string. Whichever is easier.
View 4 Replieshow to strip html code from a string? I know how to do this in Visual Basic 6 using Regular Expressions 5.5 as a reference, but since I switched to VB.NET 2008 today, I am quite unaware on how to do the same.
View 2 RepliesI am trying to strip the first 75 characters from various strings (sentences / phrases) and it seems right but I need to ensure that the no words are truncated in the process. Meaning that if the 75 character is part of a word it needs to fall back to the beginning of the word or nearest space..
I thought of stripping the entire string into separate words and then counting the length of combining the words and stopping when I reach the target but what do I do in the case when it is not a valid sentence just a bunch of characters jammed together or spaces and one character. I thought of using grammar parsing tool libraries and parsing into tokens etc but that seems too over complicated.
Here is what I have so far:
If htext.Length() > 75 Then
Dim regex2 As Regex = New Regex("^.{0,75}", RegexOptions.IgnoreCase)
Dim m2 As Match = regex2.Match(htext)
[Code].....
How do I strip out the data source from the connection string so that I only have the directory path and file name.
My connection string is thus:
Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsMartinMy DocumentsVisual Studio 2008ProjectsRestelRestel IIRestel IIRestel.mdb
My program goes like this, i have a log in form where in the admin and guest can access, then the form will navigate to main menu form, i have there menu strip, pls help. how can i disable the subitems in the menu strip if the user is 'guest' for security purposes..
View 1 RepliesI am totally new to VB and I'd like to know, for example, when a user clicks on "Print" in the menu strip on the keyboard should automatically press "Ctrl+P", because the original print dialog, and the WebBorwser print dialog is toootaly different.
View 11 Replies1: Start with bitmap in picturebox colored white2: Draw a filled rectangle (50,50,100, 100) Color black - ARGB (255,0,0,0)3: Draw a filled rectangle covering black rectangle (25,25,150, 150) Color blue, with Alpha set to 100 - ARGB (100,0,0,255) -because of 100 Alpha setting the black rectangle is visible through the blue rectangleProblem : Using bitmap.GetPixel on the blue rectangle (over white background) the result is ARGB(255,155,155,255) -an Alpha value of 255. The new color loooks the same but is not transparent.Question: How to find Alpha(transparency) value of pixel
View 7 RepliesI'm trying to create a program using Visual Basic .NET 2010 that alters the use of my media keys - Volume up, Volume down, Play, etc. All of the example I have found don't seem to compile quite correctly in 2010. Don't get me wrong they run fine and look exactly as specified but the problem is that the form cannot be edited because it claims the designer code is ill-formatted or something along the lines of that.
Can anybody possibly spare a project or form that has perpixel alpha transperancy?The only thing i want to do is show an overlayed png that has an alpha channel, on the desktop. The form border style will most certainly be "NoBorder"
I am trying to create a function that would take 2 images. 1 of the images is a grayscale image and the other is a normal image. What i want to do is apply any of the R or G or B of the grayscale image (in grayscale image r=g=b so it makes no difference) to the Alpha of the second image. i DID succeed on it. However the code is EXTREMELY slow. It takes 1 second to perform it. And i have to perform the function atleast 30 times a second (it will be outputting to a Decklink card). Here is the code:
public function createOverlay(ByVal Main as Bitmap, ByVal Key as Bitmap) as Bitmap
For index as integer =0 To (Key.Width*Key.Height)-1
Dim crntX= index Mod(Key.Width)
[code].....
This function will have to run infinitley until the user presses stop and keep updating the output buffer. How can i make it faster? ( i need at least 30 executions per second)
I would like to drop a few buttons onto a picture box or a container control that has a background image set.
I would like to have the button's image be an alpha PNG file.
I can manage the mouse over and click such that the button behaves exactly as one does on a web page.
I struggled with it in vb.net 2005 with no luck. If you take a PictureBox and lay it on top of another PictureBox, and set its images to alpha PNG's, and its background to transparent, then the form shows up in the alpha blend, not the other picture box.
And if i accept that i am limited to the background of the form, then it's performance then becomes unacceptable.Since i can Graphics.DrawImage onto a PictureBox's image fast, i assume that the folks at Microsoft must have decided to use the form's background (and slow painting, and not the other controls and the z-order), by design. I cannot for the life of me figure out why they have made that choice.
So my question is this:Does vb.net 2010 support the layering of controls that supports alpha transparency, and can we now create a custom-control with a transparent background?
I'm using the Wolfram Alpha API wrapper for .NET at this location http:[url]......However it's written in VB.NET and written for version 1.0 of the API. It's unusable.
View 1 RepliesI've been tingling with the colors of listviewitems.For the most part, they work great, but I can't set alpha:
Me.BackColor = Color.FromArgb(100, 40, 40, 40)
Me.ForeColor = Color.FromArgb(1, 255, 255, 255)
Me.BackColor = Color.FromArgb(100, 40, 40, 40)
Me.ForeColor = Color.FromArgb(100, 255, 255, 255)
The result of any of these two lines is exactly the same ( no change in alpha ). The colors take ok though.
I have problems with transparent form problem is that its too slow example if i click on button where it should just switch another panel control it takes 3-4 seconds because of redrawing [url] so at form load is called redraw() and if i click on a button and panel is switched i again call redraw() form load 6 second switching panels 3-4 seconds
View 1 RepliesI am going to blend two images together using multiply blending, and will iterate through all pixels. I have search in wikipedia that the calculation of multiply blending is:
resultRGB= src * dst / 255
but it didn't mention about alpha, how does alpha affect the result?
For y = 0 To fsrc.Height - 1
For x = 0 To fsrc.Width - 1
Dim d As Color = fdst.GetPixel(x, y)
Dim da = d.A / 255, dr = d.R / 255, dg = d.G / 255, db = d.B / 255
[code]....
Seen this question asked a lot but can't seem to find an answer. So here it is. Can you use a PNG with an alpha channel as the background image for a VB app? I don't care about changing the shape of the app rectangle is fine. They just want to use a character with a drop shadow behind him as the background for the app.
View 1 RepliesHow can i sort the following
2 Module for Drawing
6 Module for Typing
5 Module for Maths
[code].....