i have a list view that contains files i use a for statement to go with them to and check what format the file is then sets its image but i dunno how to get it to work i cant use the or statement it says it cant convert to boolean
vb
If Label1.Text = "doc" Or "docx" Then
oresults.ImageIndex = 14
ElseIf Label1.Text = "ppt" Or "pptx" Then
oresults.ImageIndex = 10
End If
I am currently using the following code to parse a webpage.
CODE:
Where it has:
CODE:
It would work, as with this:
CODE:
But i need it all in one line of code..
I am trying to figure out how to check a string can contain a certain value.In the begining I had a checkbox and wanted to hide a ceratin field depending upon which checkboxes were selected.The problem with this is that the value is always = to the first value.
I got around this by writing these values into a hidden textBox and using a loop.So now I have a textbox and if the user selected the 1st and 3rd choice the textBox would = "AC" If they selected all choices it would = ABCD etc...How can I determine if the values in my textBox contains just letter 'B' ?
I tried this:
--------------------------
Dim values As String = [String].Empty
For Each item As ListItem In section2List.Items
If item.Selected Then
[code]....
but this doesn't work.
If Double.Parse(list_numbers.Item(i), possibledouble)
list_numbers is a list of strings
list_numbers.Item(i) = "0.000"
possibledouble is a double
debugger returns "input string was not in a correct format"
i thought that the double parse would convert the string into a double format of "0.0" but it gives me an error.
i have a textbox in a calculator and i want an if function so that it checks that there cannot be 2 .'s in it:[code]
View 2 RepliesSo I basically want to make sure that a string entered by the user is valid. Valid being over 10 characters, containing only upper case characters, and only characters A - Z and spaces. The first two were easy, but I'm having trouble with the third, though.What I originally attempted to do was create a loop which checks if the first invalid character is present with the InStr function, by using the characters ASCII value. The next ASCII value is then checked, and so on until it has checked the string for every single invalid character. If an invalid character gets picked up, 1 is added to a variable, and after the loop is finished executing, if the variable is no longer 0, invalid characters have been detected.
View 3 Replieshow find an object's type when it is a subclass of another object and I only know the string value of the object's type's name.
I created the follwing classes:
Public Class word
End Class
Public Class noun
[Code]...
Using 'TypeOf', I correctly see that pn is a properNoun, a noun and a word. The problem is, using 'GetType' to check pn against a string value, I can only see that pn is a properNoun, not that its parent classes are noun and word.
Is there a way to check pn against the string value "noun" or "word" and get back a positive result, indicating that pn is indeed a noun and a word as well as a properNoun?
I am trying to check if a string is numeric but in vain. here is my code:
If Val(fnumField.Text.Trim) > 0 Or fnumField.Text.Trim = "0" Or Val(phnField.Text.Trim) > 0 Or phnField.Text.Trim = "0" Or Val(ophnField.Text.Trim) > 0 Or _
ophnField.Text.Trim = "0" Or Val(treeField.Text.Trim) > 0 Or treeField.Text.Trim = "0" Then
[code].....
How find an object's type when it is a subclass of another object and I only know the string value of the object's type's name. I created the following classes:
HTML
Public Class word
End Class
Public Class noun
Inherits word
[Code] .....
Then, in my code I create a new properNoun and check to see if it is a properNoun, noun or word:
HTML
Private Sub checkTypes()
Dim pn As New properNoun
MsgBox("Is a properNoun: :" & TypeOf pn Is properNoun) 'TRUE
MsgBox("Is a noun: :" & TypeOf pn Is noun) 'TRUE
[Code] .....
I correctly see that pn is a properNoun, a noun and a word. The problem is, using 'GetType' to check pn against a string value, I can only see that pn is a properNoun, not that its parent classes are noun and word. Is there a way to check pn against the string value "noun" or "word" and get back a positive result, indicating that pn is indeed a noun and a word as well as a properNoun?
I am working on a program that will take in a string of length 7 containing either R,G or B for the colours. The program will then check that the string if 7 in length and if it contains any other characters than R, G or B then it will be invalid. I created this code but when I enter the right string length and characters it always gives me the error for not having the right string length.
Private Sub get_cars()
Dim Letter As String
Dim valid As Boolean
Dim position As Integer
txtPosition.Text = position
[Code] ......
I'm trying to figure out how find an object's type when it is a subclass of another object and I only know the string value of the object's type's name.I created the follwing classes:
HTML
Public Class word
End Class
Public Class noun[code]....
The problem is, using 'GetType' to check pn against a string value, I can only see that pn is a properNoun, not that its parent classes are noun and word.Is there a way to check pn against the string value "noun" or "word" and get back a positive result, indicating that pn is indeed a noun and a word as well as a properNoun?
Not so long ago, I saw somewhere a solution how to check if string is date in yyyyMMdd format (i.e. if it can be converted to date if written in such format). I can't find it anymore but I think is had something to do with DateTime.TryParse method but I can't get it to work. I can get it to work if string is in dd/MM/yyyy format, but dont' know how to make it with yyyyMMdd format. If I'm not mistaken neither of DateTime.TryParse method parameters is for assigning date format...
View 5 RepliesI want my program to check the pagerank of all string list items, and than add it do a listbox. Now this is my code to open a list and add it to a string list ( itemlist as list(of string)
Dim stream_reader As New IO.StreamReader(OpenFileDialog1.FileName)
Dim line As String
line = stream_reader.ReadLine()
Do While Not (line Is Nothing)
line = line.Trim()
[Code] .....
I'm using the DLL from this website: [URL]. The problem is that it only checks the first website and the other websites will be 0/10 automatically while they might be 3/10 or something else.
Can I do anything more or less with IDictionary? How do these two collections differ?
View 5 Repliesmy code is :
[Code]...
The error is Value of type '1-dimensional array of string' cannot be converted to 'String'.
HI, using vs2008 and building a web app. On a asp page called blackjack.aspx, I have four labels with id of lbBJTStatusP1 lbBJTStatusP2 lbBJTStatusP3 lbBJTStatusP4.
I want to address those labels in a single sub by casting the casting two strings into the control name, so that string lbBJTStatusP & "1" would refer to lbBJTStatusP1.This is done on the code behind page.
So far I have tried this but with no success. boxct refers to either "1" "2" "3" or "4".[code]...
I am writing a tic-tac-toe game. The part of the code that I am having trouble with is randomly populating an "O" if the computer cannot win or block.
The code I have is;
Dim square As Integer = 6
Dim middle As Object = "grid" & square
Dim grid As Label
[Code]....
Unable to cast object of type 'System.String' to type 'System.Windows.Forms.Label'
I'm creating a Calendar. I want to put Text in the date, but the day is not always the same as the Label name. So, in this case Label27 is actually the 25th of Christmas.At first I have to decide which label. Which I can do. now I need to know how to input text into it. In essence I want to do:
Label27.text = "Christmas"
But, I don't have the Label27, I need to calculate it. Since I know Christmas is 25 and I know that the month starts on the 3 day of the week, I assign:
Att1 = 3(first day of the week of december 2009)
Dim Att3 As String
Dim Att4 As String
[code]....
I have a string called testlabel, and would like to refer to it via the string "testlabel", how do I do this?
for instance:
dim testlabel as label
dim a as string = "test"
dim b as string = "label"
'what is the line I need here? a & b.text = "hello world"
to get testlabel.text to read "hello world"?
I have an array of numbers of which I want displayed in a text box but when I call for the numbers in my array, I get a compiler error "Type "String" cannot be converted to label".How can I get my array value printed onto my text box? Where am I going wrong? Here is the
Public Class frmBaseExponent
Dim LabelArray(8) As Label
Private Sub frmBaseExponent_Load(ByVal sender As System.Object, ByVal e As
[code].....
In my VB code behind the aspx is it possible for me to call a function based upon a click on a string format.e.g.
Sub testSub()
Do Nothing
End Sub
[code]....
Then add my stringtoUse to my control. So that on my control I have two words Hello which when clicked goes to my hyperlink and World which when clicked calls my function/sub.
i am trying to put my string that i receive in yyyy/mm/dd format in my label.i am how ever getting the following error..Conversion from string "20110627" to type 'Date' is not valid.[code]
View 12 RepliesUsing VB.NET 2003 Asp.Net 1.1. I'm data binding to a label in a grid and need to knock off the last two chars, not so easy as I thought.
I know this is wrong it just shows how I'm coding:
Code:
<div id=CODE>Private Sub TemplateControl_DataBinding_Label(ByVal sender
As Object, ByVal e
As System.EventArgs)
Dim lc As Label
Dim sColumnName As
String = ""
[Code] .....
One problem is what I want to achieve:
I want to have:
$123.00
$15.00
$1,000.00
$123.50
$45.78
My data comes back with 4 places on the end
123.0000
15.0000
45.7800
35.9000
The $ sign I have in my code does work
so I have"
$123.0000
$15.5000
and so on.
I don't believe there will ever be a point where the last two are anything other than zeros.
In visual basic , when you create a label in form view (via click and drag) is it possible to make the label have both a string and a variable included in it?
*
turns=1
label1.text = ("Turn:"(turns))
*
for example , so that label 1 will display
I'm trying to read a string(what's going on) from my Arduino and display it in either a label or text box. but its not wanting to display the characters, or string i want it to. So I could really Here's the code I have right now:
Imports System.IO
Imports System.IO.Ports
Imports System.Threading
[code].....
I need to out each line of text to a seperate textbox. or label. Im not sure about a string. Can a string hold a value like, "192.168.1.1 2302"? If so, then how would i output it to a string. If not, textbox or label please. Please keep it simple as possible, since I will probably be needing to repeat this process 500 times, like, a different string for each line, i will have a lot of lines. Dont care about the textbox limit, as long as all the lines are outputted to each textbox.[code]
View 15 RepliesI got a string array & I need to show the contents of it to a single label. It acts like a clock. The thing is I tried with everything I could but I failed. This is the code I've been trying. Its in vb.net. And theres a thread running to slow down the loop so I can display the contents in a label for 2 seconds.
Dim j As Integer
For j = 0 To readText.Length
label.text=readText(j)
Thread.Sleep(2000)
Next
I have a form that has a large number of labels. Is there a way I can move the focus from label to label. After I move the focus I'll check if the name of the label has a certain string in it. If it does then I'll leave the focus at that label. If it doesn't I'll move the focus to the next label and check if that label name has the string in it. I just need to know how to move the focus from label to label. I was trying SelectNextControl without success. Maybe I can tab programmatically to the next label but I don't know how to do that.
View 12 RepliesI have a project in WPF 4 and VB.net. I need to change the color a single letter in a word in a label (the label's content changes quite a bit).
View 2 RepliesI'm creating a new (or more) tab(s) with a multi-line textbox (filled) at runtime and some text is added. Each time I change/select a (new) tab it needs to search for a string and if found...blablabla.How do I get the control to search in?
View 8 Replies