Determine End Of Line Position As Integer?
Jun 6, 2011
I'm writing a text editor for my own use ( I'm "home learning") where I want to be able to leave comments for myself, like in code section of the VB express IDE. I have figured out how to get the Integer Location of the apostrophy, but can't get it to color the rest of the line. I don't know how to tell the program to find the integer value of the last character in the line. I need that to be able to subtract the apostrophy's location from the last character's location, to get the "SelectedLength". Then I can add that to the apstrophy's location to give the SelectedLength the SelectionColor.This code was thrown together from excerpts of several codes I found on the web. I had to rewrite everything to get it to do what it does so far...
Apostrophy Location is char # 534 , the end of the line is 547. ( I cheated to get that count by placing another apostrophy there, and reclicking the btn. )Anyway, I want to take 547 - 534 to get (13) the SelectionLength, then give the SelectionColor ( green) to that selected text.
[CODE]
Dim Location As Integer
Dim char3() As String = {"'"}
Dim z As Integer = CStr(vbCrLf.Count)
[code]....
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Nov 25, 2010
I am using a button together with a mediaplayer. The button represents the media player currentPosition. (I know this is already a built in feature of the media player object but I need a much bigger display area.) It works as planned and allows the user to get or set the currentPosition. The only aspect I'm not happy with is its jerky movement as it jumps from pixel to pixel. I thought I had solved the problem by using a PointF (MyButton.Left = MyPointF.X) only to discover that the MyButton.Left value is reconverted to an integer (i.e. a position in pixels).
Is there any way that objects like buttons can be positioned accurately using units of less than one pixel?
If not, is there any other kind of object that can be positioned more accurately than a button?
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Sep 6, 2010
I have a picture box in which I drew a graphic. There is a context menu for the Picture box.
How do I determine mouse position in Picture Box when the right click occurred?
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Oct 25, 2009
I have a RichTextBox and I need to find the position of the vertical scroll bar.
Is there any way to do this without Pinvoke? If not, what is a way to do this WITH Pinvoke?
I need to return an integer value.
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Jun 23, 2011
I'm reading a text file with StreamReader, line by line. If a condition is met, then I do an operation and then start reading the file again from the first line. I realize I could close and then re-open the file, but surely this would be very slow.
I could do this easily in VB6, but pulling my hair out trying to do this in vB.net. It seems that 'Seek' is the function to use, but it doesn't work.
I've seen other examples, where it works, but you must open it a different way -- with a file number.
Imports System.IO
Dim I as Integer
Dim LineText as String
[Code].....
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Jul 7, 2009
Is there any way to determine if a line of a richtextbox has been wrapped up to the next? Something line
if line.length > richbox.width then 'do something
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Mar 16, 2010
i have designed a form that generates e-mails for outlook. the form has a textbox which allows the user to write extra notes. these notes are then added to the e-mail body at the end.
here is the issue, suppose the user wants to enter the following as extra notes.but when i actually add this to the end of the e-mail body i get something like this
"Please send us a replyyours truly,user" i has similar issues when i was generating the e-mail body as i was not using the default SMTP client server but some other methods to generate the e-mail
i know how to make the characters come to the next line, but i do not know how can i determine when the user has moved to the next line is there a way to determine this, and if there is how can i replace it with this character " %0d%0A"
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Sep 22, 2010
Operator '+' is not defined for types '1-dimensional array of Byte' and 'Byte'.How would I change the assignment statement in the code below so that each indexed byte position gets assigned the converted integer value in the for loop?
Dim byteArray As Byte()
Property Data_Out() As Integer()
Get[code].....
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Jul 8, 2011
how can i get the number of spaces in the beginning of each line before a word..following code is just for example reasons, not to be misunderstood for code that needs to be fixed.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Clipboard.GetDataObject.GetDataPresent(DataFormats.Text) Then
RichTextBox1.Paste()
RichTextBox2.Paste()
End If
End Sub
[Code]...
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Apr 26, 2011
I'm creating a type of drawing program. The user can draw a line, much like in word or paint, etc. But once the line is drawn (to a picturebox or bitmap in memory), I want the user to be able to click on the line and drag it around (translate it).
If I know the coordinates of the endpoints of the line, as well as the pen width it was drawn with, how can I tell if a certain coordinate (mouse location) is contained by the line?
My first thought was to take a mathematical approach, like get an equation for a line, and check to see if the coordinate belonged to it. But for a higher pen width, the line is thicker, and thus contains more points.
How can I tell what coordinates are part of the line? Is there some sort of intersect function in the gdi that takes a line?
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Jun 4, 2012
how do i determine if the current listview line is selected or not?
Private Sub lst_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles lst.DrawItem
If lst.Items(e.Index).selected = True Then
[Code]....
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Sep 22, 2010
How to get the line number where the cursor is in a RichTextBox? I'm using VB 2010
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Feb 7, 2012
I have created a vb.net program and released it to the customer. They are running the exe and at times the program crashes unexpectedly and display the message: "... has encountered a problem and needs to close" I know I should have added code to handle the exception, but is there a way that I can find out which line in the program caused the error? What is generally as good way to track errors in a program after it has been released?
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Dec 30, 2009
When I right click in a richtextbox, a context menu appears with an option 'get line'. When that is pressed, it should return the line number in which the mouse cursor is in.
I was thinking something like:
Private Sub GetLineToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GetLineToolStripMenuItem.Click
Dim intLine As Integer
[Code]....
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Apr 17, 2011
I have added a StatusStrip control and placed a StatusLabel inside of it. But now I want to know how to connect it to my TextBox to show the line number and position of the cursor, like: "Line 2, Row 6".
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Sep 28, 2009
I'm testing a small program that can read & write to an rtf file. Examples I have found work fine, although I have two questions:
1)If I need to ALWAYS write to line number 9 of an existing RTF file, do I need to "read" 9 times or can I immediately position myself to line number 9. I have found character manipulation but can't seem to find what I need with positioning to a particular line number.
2)BOLD text: I have found examples where I should be able to format my text, such as
MyFile.WriteLine ""
MyFile.WriteLine Text
MyFile.WriteLine "0"
but when doing this, it does not "bold" my text, but actually prints the text exactly as shown. I'm looking for information/links that I can "bold" "Italicize" text. Code is written in VS2005.
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Aug 7, 2009
I have an application in VB.NET which gets string data from the database. This string has data which looks as below:
"This is the update: I have an issue with the application"
I need only part of the data, that comes after the new line i.e. "I have an issue with the application".
For this I am trying to search the position using InStr where the string has data in a new line. I tried many options, but they don't work.
I used "vbCrLf", Chr(13), "
", "
", "<br/>", Environment.NewLine, but none of them work.
How can I get the data I need?
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Feb 18, 2012
I need to fill a List with data from a DataColumn fetched in dataset. How can I achieve that in 1 step without looping through the entire table in dataset.I want something like this:
Dim lst as List (of Integer) = ds.Tables("Customer_Data").Columns(0)
However the above line is wrong as System.Data.DataColumn cannot be converted to System.Collections.Generic.List(Of Integer)
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May 6, 2010
I am trying to learn how to read XML file and created a little program below to start testing what I have read but keep getting error "Data at the root level is invalid. Line 1, position 1"The line where the error is coming from is the line "xmldoc.LoadXml(strFile)".. any ideas?
Code:
Private Sub cmdReadXML_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles cmdReadXML.Click
Dim clsk As New clsHx
[code]....
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Sep 28, 2011
So after my script runs a batch file it executes the shell command:adb shell dumpsys cpuinfo > sample.txtwhich then if you open sample.txt you see this:
0% 71/msm_battery: 0% user + 0% kernel <br>
0% 79/kondemand/0: 0% user + 0% kernel <br>
0% 115/rild: 0% user + 0% kernel <br>
[code].....
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Oct 26, 2009
Here is my problem: I developed one application in VB.Net in VS 2008 Express Edition on MS Vista. I published the application and created the installation setup. Now when I install this application on any Vista machine, it runs without any problems, but if I install it on an XP machine, the installation is clean, but when I launch the application, it ends abruptly without any warnings/error just after the splash screen.
Then to investigate further what I did was that I copied the source project from my VS 2008 Express Edition on Vista to an XP machine having full (VS 2008 Team System) version , and when I try to compile it there (XP/VS2008 Full), I get one error in one of the forms resx file. Incidently this is the same form that gets loaded after the splash screen. So I see there is some correlation between my application ending just after the splash screen and failing to compile the main form of the application. The error that I get reads like: "Invalid resx file. The parameter is incorrect Line 1374, position 5."
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Sep 27, 2011
So after my script runs a batch file it executes the shell command:
adb shell dumpsys cpuinfo > sample.txt
which then if you open sample.txt you see this:
[code]......
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Dec 19, 2011
I need to draw several line-graphics on a form, then select and drag individual graphics to new locations. Is it possible for example to give each graphic path an identity when drawn, then select any one (via mousedown, whatever) and link it to the dragged mouse co-ordinates until released? MS Visio has exactly this ability - can it be done in .NET?
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Aug 2, 2011
I am attempting to send my XML file through an API. I have done this no problem by using the below code, however when I try and send the FILE over it will not work, I am now getting in the browser:
Data at the root level is invalid. Line 1, position 39.
Without trying to send FILE it works:
' create the Xml that the Msxml2.serverXmlHttp object will send to the Webservice
dim Xml_to_Send
Xml_to_Send = "<?xml version=""1.0"" encoding=""utf-8"" ?>"
Xml_to_Send = Xml_to_Send & "<xmldata>"
[Code]....
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Jul 6, 2011
Ypos = TopMargin + Count * PrintFont.GetHeight(ev.Graphics)
ev.Graphics.DrawString(ROData(x, 3), PrintFont, Brushes.Black, LeftMargin, Ypos, New StringFormat())
Count = Count + CInt(ROData(x, 4))
The above line prints the data contents of the ROData array in position three. I would like to be able to assign a specific position accross the line to have the printer print the data at without left padding the array data.
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Nov 24, 2010
The Form Designer in the IDE is no longer working properly. When I create a new project, the Form Designer will work, but after I save it and close the IDE and reopen the next day the Form Designer no longer shows the form and instead says "To prevent possible data loss before loading the designer, the following errors must be resolved: An Error occurred while parsing EntityName.Line 2, position 62" If I click ignore and continue, then it just displays a blank form with no controls. The problem appears to have started after I unistalled and reinstalled VB2008 Express.
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Sep 15, 2011
I have inherited a VB.NET project which was created in VS 2003 and is now in VS 2010. It works fine on one macine (32 bit). However, on my Win7 64 bit machine it simply won't build or run. I get an error saying "xxx is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) Line 4762, position 5"
[Code]...
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Aug 24, 2009
I have looking for a tutorial or class that demonstrates more than a trivial example of saving a windows position on closing. The ones I have found don't seem to work on all systems because of:
1. Multiple monitors. (and resolution between those monitors)
2. Toolbar size and position (toolbar is only on the primary monitor, well sometimes)
3. Sometimes the programs dont open on the right monitor they were closed on.
Is there an extensive class or tutorial on all the stuff a programmer needs to get right to have a window size and position persisted between executions?
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Dec 5, 2010
I am using the following code to populate data in Textbox1:
[Code]...
I have few functions assigned in TextBox1_TextChanged event. The problem i am facing is this event is fired twice, once after the Fill command and another after the Position command whereas i want the event to fire only once after the Position command. What should i do?
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Sep 25, 2010
ive got some simple problem i cant understand how to solve.
str(1) is an array and integer(or double, tried both)
a(1) is an array and integer (or double, tried both)
a(1) = a(1) + 1
Label1.Text = str(1) + a
the big part is where i get: operator '+' is not defined for types 'integer' and '1-dimensional array of integer'.why do i get that message and what does it mean? how do i make the code do what i want?
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