I am retrieving text from a rich edit control in an external application. The text is formatted to look something like this: Output: All is well. I'm retrieving the text using :
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What happens here is when I click on anyone of the radio buttons the text box score sets the value to either 0,1,2,3,4 but when I go the next case it goes back to 0 instead of keeping the value. I tried many different techniques while going about this none seem to work.
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I have an Excel sheet that looks like this:
Site ID Machine Name
43 SCO43
100 SCO44
2300 SCO50
45 SCO47
2 SCO46
I am trying to bind a textbox to a binding source (using the IDE DataBindings Editor) and it works fine except for one thing: if I delete the text I get the subject error. What I want to happen is the datarecord field be updated to a dbnull value -- how do I get that to happen?
View 4 RepliesI've got a string that looks like this:
00:02:49.5350000
h m s
h=hour
m=minute
s=seconds
I would like to format that string so it looks like this:
2:49
m s
Is there any way i can do this easily?
I seem to be having a problem with the Format() Function. I am trying to format a string of text from a variable so that it uses commas as thousand separators, but I can't seem to get it working properly. Here's what I'm using:
Dim testVar As String
testVar = "10000"
testVar = Format$(testVar,
When I use this code, it changes the variable's value to The strange thing is, it works fine if I use a number instead of the Variable. It also works fine if I use a "predefined numeric format" instead of my custom one. For example, if I use:
testVar = Format$(testVar, "Standard")it works just fine, but that's not what I want (otherwise I'd just do it this way.) It also works fine when I do this:
testVar = Format$(10000, And, although in the example code I've written here, it seems like I could just do it this way, in my actual program, I can't. I have to set it dynamically with the variable.
So it seems like both portions of my Format() Function are working, but just not together, and I can't seem to figure out why. anyone shed some light on this for me and tell me what I'm doing wrong? From every example I can find on the internet about using this function with a variable, I'm doing it correctly, but mine isn't working.
var queryString = string.Format("filename={0}&filestream={1}&append={2)", fileName, Convert.ToBase64String(b, 0, bytesRead).ToString(), 1);
above line of code giving error 'Input string was not in a correct format.'
I have a function that is getting passed a String and a DataRow.The String is a custom formatter. The idea is to do this
String.Format(passed_in_String, DataRow("ColumnINeed"))
The reason this is being done is at this point we have no idea what the column contains.However, if the formatter is "{0:MM/dd/yyyy}" and the DataRow("ColumnINeed") is an integer containing 42, String.Format is returning: MM/dd/yyyy In this situation I need it to throw an exception instead of returning nonsense.Is there anyway to make String.Format throw an exception if the object does not match what the format string is expecting?
I'm pulling from a text box for recording scores like 2, 47080, 88 and for better aesthetic look on viewing results i wanted to format results like so:
00002
47080
00088
Only way i could format was to convert to number and use: Score.ToString("0000#") not worried about validation, this is just something for my rug rats.Is there a better way, as in not having to convert to number first?
Is there any possibility to make this true?I mean we can't use { } as a normal text in String.Format()
View 4 Repliesvb.net
Public Sub PopulateClient()
Dim clientadapter As New MySqlDataAdapter("SELECT clientid, Client_Name FROM client", strConn)
Error I keep getting is "Input string was not in a correct format." It is getting this error because of this:
vb.net
clientID = Int32.Parse(cboClient.ValueMember)
If I don't use that for the PopulateDept() then I get this error "Error1Option Strict On disallows implicit conversions from 'String' to 'Integer'.TaxCert.vb19033TaxCertForm"
I am trying to alter a column in an Access database in VB2008 from date to text format using the SQL string as follows "ALTER TABLE receipts ALTER COLUMN Date CHAR(10)"but whether I Use TEXT, CHAR, VARCHAR or STRING, I get a Syntax Error when I run ExecuteNonQuery.
View 2 Replies1) Transcription company uploads .txt files containing transcription onto one of our servers for importing into SQL Server. These files have some minor formatting, usually just grouping of text with linebreaks and would look something like this:
</br>CHIEF COMPLAINT </br>"I was a little hungry."</br></br>HISTORY OF PRESENT ILLNESS</br>
2) Weused a program which was created using vs.net 2005 to take the content of this file, convert it to a string, then upload this string into a varchar field in SQL Server. When the content of the imported text is viewed in the web application forformatting (</br>) is presented correctly3) Due to a server upgrade (upgraded from SQL Server 2005 to SQL Server 2008 R2) and source code corruption this application had to be recreated using vs.net 2010. After I recreated this application I am finding that the text is no longer keeping the formatfrom the original file so that all the text is clumped together. I have attempted to use the replace function of the string to replace </br> with vbcrlf but this is still not working.
My application outputs log text every so often and I need the user to be able to see the latest text at all times. I've tried a label, a text box and a rich text box, but I can't figure out a way to show the bottom-most text at all times.
View 2 RepliesI'm new to .net. I would like to know how to convert a text data in string or in a file into a simple byte array[ ] format.
View 3 RepliesMy code comes up with this error when i click save "Form exception was unhanded" , " Input string was not in a correct format."
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So I need a format string to pass to String.Format that would "move" the decimal point.I can't perform any math operations before doing the String.Format, so it has to work right off the bat.Basically I'm emulating a formatting string from a proprietary server. In it if I say:
"MR2"
for the value:
12345
The result is:
123.45
I'm close with this, but it's not spot on:
String.Format("{0:#0.##}", 12345)
an extra, but not necessary... there is also MR2Z, which moves the decimal 2 left, but if the value is 0 "" is returned.
however, i'm copying this directly from the book in its example format and still getting an error.
FormatException was unhandled
Input String was not in correct format
Public Class Form1
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I would like to make a simple code that counts the top three most recurring lines/ text in a txt file then saves that line/ text to another text file (this in turn will be read into AutoCAD's variable system).Forgetting the AutoCAD part which I can manage how do I in VB.net save the 3 most recurring lines of text each to its own text file see example below:
Text file to be read reads as follows:
APG
BTR
VTS
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The VB.net program would then save the text VTS to mostused.txt BTR to 2ndmostused.txt and APG to 3rdmostused.txt?
I made an application that searches for an text file and copy it toc: est. But when is find multiple files i cant copy it because it will overwrite the file in c: est *.txt.Is there a way i can copy a file and Keep the origional file name?[code]...
View 16 RepliesI need to take a string formatted like '010711' (DDMMYY) and put it into format '01-Jul-11'. Ive thought about doing something like string.toArray and then having some conditionals that format from there but am looking for an easier way.
View 5 RepliesLet's say I'm trying to have a program that will check for a version.txt file online, and enable the user to download a new version of my .exe.Here is an example of how i get the new version. I apologize for the old syntax, but i just got out of VB6 and am still learning FileStream, etc. Inetconnection is just a function similar to Webclient.DownloadData.
DABytes = InetConnection(Pathy)
Targetfolder = Application.StartupPath & "DA.exe"
foldera = FreeFile()
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I've never really used the SecureString class before but I've got a requirement in an app to have a user enter a password that will be used later in the application, and I figure SecureString is the most secure way to do this.
I have created a little dialog form where the user will enter their username and password and have set the UseSystemPasswordChar property of the password textbox to True. As I need to keep the password in memory for use later though, I have created a property in my main form that is of type SecureString and when the user enters their password into the dialog window I copy the string from the password box to the SecureString property like so:
vb.net
For i As Integer = 0 To LoginFrm.PasswordBox.TextLength - 1
Me.ConnectionPassword.AppendChar(LoginFrm.PasswordBox.Text(i))
Next
I figured out how to get the original string back when I need to (with only a slight hint from the documentation I might add ), which I do like this:
Dim OriginalString As String = Marshal.PtrToStringBSTR(Marshal.SecureStringToBSTR(Me.ConnectionPassword))
but the problem I have is that I want the user to have the option to edit the password they already entered if they want to. This is a problem because I want to avoid putting the real password back into the password box for security reasons, but then if I just put some random characters in there (just to show that their password has been remembered by the app) and then the user clicks OK on the login diaog form then it will update my ConnectionPassword property and set it to the random characters.
One option would be to set the passwordbox text to something specific each time and then test to see if that is what the text is set to when they click Ok (and if it is then obviously dont update the ConnectionPassword property) but this seems pretty rubbish because its possible (however unlikely) that the user could actually select that word as a password.
Any better suggestions? Perhaps its not worth doing anything at all and just use a normal string as the SecureString is going to have to get converted back to a normal string at some point to be used.
Public objword As New Word.Application
objword.Documents.Open(FileName:=ofilename)
^ Showing the declaration of the word document that i wish to edit.
Dim oDoc As Word.Document
objword.Visible = True
oDoc = objword.ActiveDocument
oDoc.Range.Text = codes(j, 1) & " " & codes(j, 2)
This gets the document and adds text into it, exactly what i want it to do. But it replaces the whole document. I just want it to add text at the start of the document. Not replace the whole document.
I am building a sort of 'lightweight' Visual Studio, and I'm trying to implement the feature where you can drag tabs to different 'tab groups', viewing multiple tabs side by side.
I got nearly everything working, I show a ContextMenuStrip when you rightclick the tab headers, with the option of creating a new (horizontal or vertical) Tab Group. When that happens, a new TabControl is added dynamically and the selected tab is moved there. You can drag the tabs around inside a TabControl and even from one to another.
The problem now is keeping track of the 'active' tab. Since I have multiple TabControls (not just two, there can be as many as you want theoretically), their SelectedTab properties are basically useless. How am I to determine which TabControl the user is currently working in? Obviously I will always have multiple selected tabs, but only one active tab, in which the user is currently typing, editing, whatever.I need to know the active tab for obvious reasons: many menu and toolbar items act on the active tab for example. A short explanation of my controls:I have one TabGroupContainer control, which inherits UserControl. I have a TabGroup control, which inherits TabControl.I have a Tab control, which inherits TabPage.
The TabGroupContainer holds a collection of TabGroups (to which I dynamically add/remove TabGroups when required). Now I want the TabGroupContainer control to have the ActiveTab property which returns the one and only active tab (out of possibly many selected tabs).The only logical way is to keep track of the tab that was selected last, for every TabGroup.
At the moment, I am doing this:
- In the TabGroup (TabControl) class, I shadow the SelectedTab property (and return a Tab instead of a TabPage). More importantly, in the property setter, I raise a SelectedTabChanged event:
vb.net
Public Shadows Property SelectedTab As Tab
Get
Return DirectCast(MyBase.SelectedTab, Tab)
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However, it still doesn't work. I soon figured out why: I am checking that the previously SelectedTab is not the same as the new value in the property setter of the (shadowed) SelectedTab property. I don't raise the event when they were the same, and in this case they were the same (as there is only one tab in the TabGroup!).So, I took that check out, and now it seems to work when I click in the text editor.
So one problem remains: the active tab is not changed when you click on the tab header (and not on the text editor). I am clueless as to how I should handle this... I am once again sure there is a simple fix, but I cannot see it. I can click the tab header, and I'm sure behind the hood it responds to this click, but it never raises it SelectedIndexChanged event because the index didn't change but was set to the same value it already had. I cannot override the SelectedIndex property (so I could skip this check and raise the event anyway even if the value didn't change), and the OnSelectedIndexChanged method is not called, so I cannot use that either...
I want to format the Timespan to have format like this 49 hr 34 mn 20 sec
I used the String format below :
String.Format("{0:00}:{1:00}:{2:00}", theTimeSpan.TotalHours, theTimeSpan.Minutes, theTimeSpan.Seconds)
It formats the Timespan to this format 49:34:20. How can I add hr mn sec to the String.Format above? or there's another easy way?
I'm returning a database query into a List object and using that list object to fill the X and Y axes of my chart as seen below. (_runData is a "List(of DatabaseTableName)" style Object filled with the results of my query.
Primary_Chart.Series(0).Points.DataBindXY(_runData, "DateTime", _runData, "UPPER_PRESSURE")
My Datetime field is returning as a Serial Number (i.e. 40116.76111) so I want to format the X Axis to display the field more readably. Enter my problem code.
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(Currently using VB.NET 2010 Express) I'm trying to make a program, the main of which is file transfer. I'm trying to create a program that will keep files and folders synchronized across multiple client computers. I'm using a File system watcher to trigger events, and Using a simple System.Net.Sockets UDP client transfer (found via google) to transfer commands between it and itself on other computers.
Here's that code (this just sends from one textbox to another over the internet)
Imports System.Net.Sockets
Imports System.Net
Imports System.Text
Dim udpClient As New UdpClient(1024)
Dim RemoteIpEndPoint As New IPEndPoint(IPAddress.Any, 0)
[Code] .....
By this method, I can rename, move, or delete files. I want to implement file transfer, so that whenever a new file is created, or updated, my program will automatically transfer the file to the other computers and update them there.
How would I format txtLabel.Text to a currency format?
The text would be 15000000
I would like the text to show $15,000,000
I am using String.Format("{0:C2}", -1234)to format numbers.is always formats the amount to a positive number, while I want it to become $*-*1234
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