Why Is Textbox String Changing Lengths

Feb 26, 2012

I am working on a project that I scroll from one screen to another.

A particular string I have 2 variables that can be changed. If I stay on this screen I can change either variable just as I need

however when I change to another screen then return my string is 1 digit longer and when I wish to edit this string my program fails because the string isn't the expected length.

A portion of my program follows....The Y6 is just a counter. The MA is a conditional control.

ElseIf _
Y6 = 4 _
And MA = True _

[Code]....

Delete 0-27 then determine whats there "NC" or "NO" and simply change it. But again when I leave this particular screen and return my text length is no longer 29 charactors long, it is now 30 charactors.

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Allow Multiple Lengths On A Textbox?

Nov 18, 2010

I think this will be better than what I was thinking before.

How can I allow multiple lengths to a textbox.Allow multiple lengths on a textbox?

something like

if Not TextBox1.TextLength = 8 Or 11 Or 14 Or 18 Then msgbox("error")

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I have a string which can be of any length. I want to loop tthrough this string and if there 53 characters assign that to Variable1, then loop round again and assign the next 53 characters or less to variable2 etc etc until the end of the string. Ideally I would not want to split words - but that is another problem.....

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I have a project im working on and im trying to change the font color of a specific string basically how vb does while your coding. (eg if i type dim it turns blue).I want to do this with a textbox in a vb application to show a topic of interest. It needs to be dynamic so when a user types it only changes the color of the specified string. I have tried

If TextBox2.Text.Contains("dim") Then
TextBox2.ForeColor = Color.Red
End If

but this changes all the text in the textbox to the color.

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Feb 22, 2010

How do I add text to a TextBox instead of changing the textbox as a whole. Also, how would I make a newline when adding to the textbox?

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Can a substring have mutiple arguments? I am pulling a substring from a drop down list into my database for records, the string is between 6 and 8 numbers, is it possible to pass more than one argument to make this work?

Sample data:

DropDownList
123456 | Name
1234567 | Name

[Code]....

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Apr 20, 2011

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dim i1st number as Integer
dim i2nd number as Integer
dim i3rd number as Integer
dim i4th number as Integer

I know how to search for one instance of a string in a string but taking the 1st part to the comma, then the next comma and so on is confusing me.

[Code]...

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Basically I'm just trying to see if the date/time of files have changed on files.So I've got code something like this:-

Dim fi_source_CreationTime As DateTime = fi.CreationTime
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If (fi_source_CreationTime = CDate(file_info_DateCreated)) Then

[code]....

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Apr 4, 2012

I have an array of strings such as "blue", "green", "red" and I wish to sort them so the longest string comes first and the shortest last.

Currently I am creating another array with the lengths of each string in the array in the same index positions and using this array as the key array to sort by as can be seen below, but I think this could be optimised into one line perhaps?

Dim colours() As string = {"blue", "green", "red"}
Dim colourslength() As Integer
For i As Integer = 0 To colours.Length - 1

[Code].....

Edit: just realised I defined colours as a list in the example code, it's an array in my actual code.

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I want to write the DS into a txt fie with predefined field lengths.

Code:Dim ds As New Data.DataSetda.SelectCommand = New SqlCommand da.SelectCommand.Connection = conn da.SelectCommand.CommandText = "SELECT * from Samp1" da.Fill(ds, "S1")

[Code]...

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Because if I were to declare a variable Dim accounts(2,2) As Integer all 1D arrays at each dimension have the same length. Is there any way to create an array so that this is not the case?

e.g The above code would create an array like this:
[[0,0],[0,0]]
but would it be possible to create this:
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I am working on a program that opens a .txt file, finds the length of each line in the file, and then outputs the minimum and maximum lengths. For example, assuming this is the .txt file I am opening:

2789304
293048203
27598493

[code].....

I would like to return something like this:

Minimum length: 6
Maximum length: 9

I cannot use arrays for this assignment. I figured out how to get the maximum length but cannot figure out how to get the minimum. Am I going about this the right way or is there an easier way to do this? Here is what I have thus far:

Dim FileName As String
Dim FileReader As StreamReader
Dim FileLine As String

[code].....

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For a school program, I was assigned to use a .dat file to store and edit information while using VB to be it's front end( to appear in a listbox). I was also given what field length to use per field. I never worked with .dat files, so I have a few questions (all the google-ing Ive done say the same thing: every .dat file is different so you can't play around with them):

[Code]...

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Examples in VB.net or C#.Net (4.0) would be helpfull.

arraylist1.count
arraylist2.count
arraylist3.count
arraylist4.count
arraylist5.count
arraylist6.count

DIM longest As integer = the longest arraylist should be stored in this variable.

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does anybody know of any good Visual studio 2008 books to help me with code. I used to dabble in QBASIC and finding the changover quite difficult.

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Code:

Public
Class
frmExpenses

'I made everything public because I'm runnings a test timer which are sending realtime data to some labels

Public i
As
Integer

[code]....

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[Code]...

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I have tried a couple of other things too, but most of them were much more complicated and I could not really explain what each thing did.[code]...

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Here is my code'[code...]

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