what if the lines are very long?Because i've encountered a problem such that long lines would always be arrange wrongly, example shown below:This what i want to convert:
STRUCT [2004/8/24 18:28:58, 2004/8/24 18:28:58] yc_ln45_w14
BOUNDARY 9 0
XY 7 ( 14000 149500, 159500 4000, 159500 0, 145500 0,
0 145500, 0 149500, 14000 149500)
[code]....
I have a project with a canvas that the user can zoom and pan using the mouse. The origin is marked with a blue cross running through the canvas. As the user zooms in the line width of the markers is reduced to keep the them about 1 pixel wide on screen. However, after zooming in about 10x the origin lines abruptly disappear. It seems like the rendering engine is deciding that the line is too small to be displayed before applying the scaling transform.
What is strange is that when I do the same operation to a rectangle instead of a line I get the expected behavior (see the ScaleBox rectangle object in the code below). Any ideas on what is causing the problem and how to fix it would be welcome.
Here is the relevant XAML:
<Canvas x:Name="MouseCapture" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="WhiteSmoke" >
<Canvas x:Name="ZoomPan">
<Canvas.RenderTransform >
[code]....
Here is a screenshot as 10x Zoom. The origin lines have disappeared abruptly, but the black box still shows up as expected. (Note that only one side of the black box is visible because the rest is outside the visible region because of the zoom.)
I wanted to basically rearrange the alphabet with a keyword infront as I am doing a simple substitutional cipher. I have kind of worked out the logic of doing that but I am a bit stuck on the coding side.
What I wanted was something like:Dim key = "keyword"
For i = 0 to 26
'insert keyword and put in A to Z after without duplicating characters
Next
'output: keywordabcfghijlmnpqstuvxz
Im wanting to develop a little program that displays the items I have in the taskbar and Im able to sort them to how I want and thats how the show up on the taskbar. Know what I mean?here would I get started with this or is there already something out there?
View 2 RepliesI have a photo album gallery within my website and would like to allow users to sort the order of their photos within an album. After looking at very different ways I came across this example [URL]... which is exactly what I need. The photo are stored in the uploads directory and details in the database. The images are displayed using the ListView as shown below:
[Code]...
Is there a easer way of coding in stead of wrighting long long paragraphs like this in one line [code]All of this is on one line and i got lots of info to put down.."The game will begin on your 16th birthday with your mother waking you up. Today you are to go to the castle for the first time. Leave your bed and open your dresser for a Strength Seed. "
View 2 RepliesIn Visual Studio 2008 I am using :Private Declare Function BlockInput Lib "user32" (ByVal fBlock As Long) As Long To stop input from occuring during a search-replace operation.
BlockInput(True) ' do not allow input during search and destroy
Dim cursorIcon As Cursor
cursorIcon = Cursor
Cursor.Current = Cursors.WaitCursor
Then setting it to false at the end of the operation. It did not work, so I thought maybe it was because I was calling it from a child window, so I created a function in the mainwindow, and ran it like this:
FrmMain.BlockFrmMainInput()With these functions is the Main window:
[Code]...
It did not solve the problem. I thought maybe it was because I was running under the debugger, so I tried compiling and running it debugger-free, but that did not do any better. I am still getting input when I double-click the mouse on either form.
how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
I have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..
Dim ary() As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then
[code]....
The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.
below are a few lines from my text file(10929 lines)I need to read each line and insert into MS Access. each line is a column in my table and the record changes on every 8th line or to be more specific(on every 8th line you will see a number [1,2,3,4,5,6,7,8,9.....] this is where another record starts,
[Code]...
I want to draw string in multiple lines and and I want to know how many lines given string will take. I am using following method.
[Code]...
I am trying to make a script to spit command lines to a bat file to compress a bunch of files singly and then delete the original ones. I am sure that is easy to most of you, but I living a ____ trying to do this. A have a file list like this one belo, which was created with a command -- Dir /b /s /a-D N: > filelist.txt
[Code]...
read lines in a file, split the lines and spit the result to another file
View 2 RepliesI have a VB.NET app in which I'd like to use the Stopwatch class. The stopwatch will get reset every time it enters a particular method, which may be in less than a second, or not for hours. Is there a limit to how long you can let a stopwatch run before something bad happens? i.e. an error, or performance degradation?
View 2 RepliesBe it in 32 or 64 bit system?
View 3 RepliesHow do i put a long description in my about box? I can't put it through Assembly Information because it cannot fit.
View 8 RepliesThis is probably a really simple thing. Basically, the user clicks a button and a potentially long running task happens. I'd like to do a few things like toggle the button's enabled state, show a spinner, etc. In VB.NET Winforms I'd just do Application.DoEvents() and the updates would happen and the code can continue. How can I do this in ASP.NET? (preferable serverside or minimal javascript)
View 2 RepliesI am developing a web application in asp.net vb. My current situation is,I have a main site say [URL] and another site for generating reports depending on certain user ids say [URL].If I click a button on [URL] I have to switch on the generate report page on [URL] and return to[URL]. [URL] should generate report and set a flag in database of [URL].Currently I am redirecting to the page in xyz.com and add the long running task to queue as follows and redirect back to [URL].
If ThreadPool.QueueUserWorkItem(New WaitCallback(AddressOf LongTimeTask), New Object) Then
Response.Redirect(returnURL)
End If
But the problem is its not dependable. Means some times the queue is executing correctly but some times not. There are no errors in long time task. Just the queue is not executing.
Edit So the solution I posted from Jenner at VBforums was, obviously, in VB, and I used an online converter to port it to C#. Something was lost in translations, and that's why it was 10 miles off. I'm guessing I am just misunderstanding what the algorithms at the Proj.Net discussion boards are for and that's why they weren't doing what I wanted them to.
[Code]...
How i can calculate the distance between two coordinates[code]...
View 6 RepliesI m new to this forum and also to VB.net programming. In an application Modbus protocol is used and I have generate LRC checksum for that. But I am stuck at conversion of a Long type data to Byte type. The long type data is for example : 4294967197. I tried all the following functions:
1.b = Byte.Parse(4294967197)
2.b = CByte(4294967197)
3.b = Convert.ToByte(4294967197)
[code].....
Is there a way in which I can detect how long someone has been idle using a form (ie. Not clicking or entering any information into any fields/textboxes). Or would I have to implement a timer which counts this and reset it in the event handler for any entry?
View 3 RepliesHow to Covert a long name to short name??? for example: How to convert Visual Basic name into VB
View 1 RepliesWhat is wrong with this code?When the code runs cmd.ExecuteReader I get an error saying "Incorrect syntax near the keyword 'AS'".I'm assuming I didn't breakup the sentence correctly.
Using cnn As New SqlClient.SqlConnection(clsDBConn.clsDBConnections.prpConnString)
cnn.Open()
Using cmd As New SqlClient.SqlCommand[code].....
I develop in VB and often I'm writing long TSQL statements in SSMS but getting them into VB is a bit of a pain. I like SSMS during development because I can change the query / structure and test it when there are problems. Some of them become stored procedures and some of them I just keep in the code.I like keeping them in the code because when I have a problem with something, I can GREP my projects directory and find the code that does something (that I've forgotten) or someone asks something about how something works, I can look it up. I've yet to find a GREP for stored procedures. Is there such a thing?I've read in a "best practices" white paper how we're not supposed to concatenate super long strings with & _ but a hundred line proceure is a pain to nest in
sb.AppendLine(" WHERE [q3] IS NULL "
sb.AppendLine(" AND [q4] > 2
"
[code]....
C# handles these things much better than VB. I'm wondering how I can keep my code together during development and searchable later. I had my hopes up when VS 2010 offered implicit line continuation, that this would help my multi line SQL procedures. Again, I was mistaken. Perhaps I could write it all on one line. I'd be interested in knowing if there's a feature that I am not aware of. Well there are certainly many features which I'm not aware of, but I was referring to "long strings".
I'm using Bouncy Castle (c#/vb.net version) and generating a 4096-byte RSA Keypair to use in my certificate with this routine:[code]The procedure works ok, however it takes a very long time, up to one minute (I'm on a 2.4ghz pentium DualCore).Since I don't have much experience (almost none really) with RSA and all these things, I just wanted to ask if it's normal that it takes so long to generate the key, or if I'm doing something wrong.
View 1 RepliesI used to do this by eg String(52,95). (Getting 52 repetitions of an underscore) Cannot make out how to do it in dot net. I realise that String is no longer right but Str is not working either.
View 3 RepliesCan you do something like this? Public sub dosomething(byref value as (Integer or Long)) And how can you make a method accepts a unlimited amount of parameters? I'll probaly be able to find a explanation on the internet, but could anyone tell me how this is called. I am not using the right keywords I think..
View 4 RepliesI have a very long string. I need to parse this string so I can get information out of it. I know what each segment starts with and ends with. The length of the information will vary. I don't know what the easiest way of parsing this string.
Example data will be
ST*997*232898~AK1*HC*8888*~NM1*2*TESTING........
So i will want to get everything from ST to AK1then AK1 to NM1 and so on and so on.
The problem I'm facing is that PrintForm has a shoddy quality while getting the printouts and PrintDocument takes way too long to get on receipt printed (Almost 5-10 Seconds!)I'm either looking for an alternative for PrintDocument or somehow make the PrintDocument run faster
Dim
printFont As
New
[code].....