VS 2005 String Not Being Passed?
Dec 6, 2011
I'm sure there are better ways to do this and i am open to suggestions. I'm not worried about speed i figured get it to work then i could improve it but my problem is mynewstr2 is not being set to the last value of mynewstr for some reason.(probably something silly im overlooking right now). at this point just converting the image to a string i can work with for my very basic ocr.
Public mynewstr2 As String
Public Sub pictostr(ByVal image As System.Drawing.Bitmap, Optional ByVal Mode As BWMode = BWMode.By_Lightness, Optional ByVal tolerance As Single = 0)
[Code]....
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Mar 2, 2011
So strings are reference types right? My understanding is a reference to the string in the heap is passed even when you pass the string ByVal to a method.
String myTestValue = "NotModified";
TestMethod(myTestValue);
System.Diagnostics.Debug.Write(myTestValue); /* myTestValue = "NotModified" WTF? *[code].....
And what is going on under the hood? I would have bet my life that the value would have changed....
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Nov 1, 2009
I'm just learning VB and enjoying it, but I have run into a problem with a recent program. I am working with passing values. There is a button on my form that is pressed each time the user "votes" for an option. The problem is I'm declaring my variables in the button press action, then calling my subs/functions.
This seems to be re-declaring my variables each time the button is pressed causing the total counters to fail to increment. I wrote the code for a very basic example of what I am running into in my more complex program.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim intGenericValue As Integer
Call GenericSub(intGenericValue)
[code]....
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Mar 23, 2012
I want to pass a List of T where T is an object I've created that has about ten properties (strings, dates and integers).The lst passes to the function successfully. I am also passing an New T of the Object (itm as T).I can see all the values (see image below), but because it's generic I cannot seem to retrieve the property values and I cannot figure out how to iterate through the properties of each itm as they are retrieved in the For Each.[code]
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Oct 19, 2011
I need to pass in parameters to my sub/function. When the parameter is passed, the value in the string, I would like to get the value evaluated and sent as:
Dim strParams As String = drRow(0)
' drRow is a row from DB Table. the value in drRow(0) =
' "@FromDate=""" & Now.AddDays(-10).ToShortDateString & """&@ToDate=""" &
[code].....
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Oct 31, 2011
If I send a String set to Nothing as an input parameter to a SQL stored procedure, and in the sproc it's like this @MyString Char(9) = NULL, what does it turn NULL into? Because I'm firing the sproc and it's not firing the statement that says IF @MyString = NULL... So I don't know what it is... Or how can I pass the string as a NULL if nothing is passed as a parameter to my calling function?
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Feb 3, 2011
sir i m working on a project and i want to pass a value in query string and redirect it to next page .....ok now on next page i want to make a check on this if the value of querystring is equal to a particular value then a message show.... i have done upto here now the prob comes if the values is not matched the code written in else is not working i m writting my code:-----
if(request.param.count>0) then
label1.visible="true"
label1.text="hello"
else
label1.visible=false
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Nov 8, 2010
You pull the value out of the Request object
Request.Querystring()
Then set the ImageUrl property of your image
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Nov 12, 2010
I have a class library that contains a number of classes. I would like to dynamically create an instance of one of these classes, set its properties, and call a method.
Example:
Public Interface IExample
Sub DoSomething()
End Interface
Public Class ExampleClass
[Code].....
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Jan 29, 2012
[URL] That way if the string that is not recognised that is passed to Color.FromName it returns a SolidColor of
Color.Black = Color.FromARGB(255,0,0,0)
That way, Forms and controls that only support SolidColors are supported.Installing VB6 on Windows 7?
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Jan 17, 2010
I don't understand why the line final.join etc pops up with these errors!! Value of type 'String' cannot be converted to '1-dimensional array of String' And Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated This is my code.
[Code]...
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Feb 19, 2009
The following is ment to generate the path to a text file and stream the data found there into an array.
Dim y1 As String
Dim y2 As String
Dim y3 As String
[code].....
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Jun 4, 2009
codes like(x is variable)
dim k as string="5b5" & x & "85"
I want to know how many times "5" appears in k,
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Jul 30, 2011
The intent of the code is to open an xls file -minimize it , search for keywords . there are columns like test case name ,priority(simple ,medium and high) with associated keywords.If keywords are found, it shld save the test case name - Priority in a text box. When i run this code i am getting err in
[Code]....
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Mar 30, 2009
My problem seems simple but I can't find an answer for it.I need to be able to pull a phone number (string) from an entire string. example: "My phone number is (xxx) xxx-xxxx, call me as soon as possible."
Its obvious to me that the phone number should be able to change depending on who you are talking too. So the question becomes, how do i search for the phone number's format within the above string?
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Jun 7, 2011
I'm very new to vbs scripting and am trying to set a System envinonment variable which will be used by a subsequent cmd file which is called by the VBS script which created the ENV varible.The vbs script creates the varibale correctly but the called CMD file does not find it. I thought a child process inherited its parent env settings. I understand the child can not change the parents env. why the cmd file does not see the variable, am I using the wrong shell command in vbs to call the cmd file or something?Here is the VBS script that simply sets a System varibale and the CMD file below which attempts to log it.on error resume next
Dim objShell
Dim objEnv
Dim usbDrive
Set objShell = WScript.CreateObject("WScript.Shell")
[code]....
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Jan 27, 2009
Arrays Passed to Functions
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Feb 1, 2012
Ok so I tried to make an application that will open a URL ONLY if 24hours has passed since it had previously opened. My idea is that it will save the time/date to a .txt (unless there another way which im completely missing?) when it is opened (only open if the current time is the saved time/date + 24hours) and rewrite it after every time.
When I say I tried, I mean I opened a project, realised I had no idea what to do and stared at the Form for 10minutes.
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Jun 7, 2011
I have kind of a problem in a database well its suppose to save a date but like a string, well more like a char type, and i need it that way to do reports.So there to tables Ventas and VentasDD so they have the same information what ever is introduced in the form both those tables have the information, the information is introduced simultaneously.So this is how its supposed to be save like VENTAS image the VENTAS date is saved correctly But the when its saved on VENTASDD table the format for some reason changes even if its the same type and text and everything, like the image shows, the first record i modified it manually but it is displayed like the other 3 records
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Jan 18, 2011
I am working on a ASP.NET MVC2 website. For learning. I am working with the Visual Basic language.
In a view I would like to do this:
<%: Html.EditorForEnumeracion(Function(v) v.combustible%>
So, I created an HtmlHelper extension method:
Imports System.Runtime.CompilerServices
Imports System.Linq.Expressions
Imports System.Reflection
[Code]....
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Apr 15, 2012
I'm trying to make a sub that will highlight the text of a RTB that is passed.
Here is the code:
Private Sub SearchAll(ByVal selectedRichTextBox As RichTextBox)
Dim startPos As Int16 = 0
Dim matchPos As Integer = selectedRichTextBox.Find(TextBoxSearchFor.Text, startPos, selectedRichTextBox.Text.Length, RichTextBoxFinds.None)
selectedRichTextBox.SelectionBackColor = Color.Yellow
[Code] .....
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Jul 19, 2011
I have a form with its method being "get" that passes the variables and their values to the query string, respectively. However, it also passes the viewstate variable in the query string. Now, I have a very long viewstate value on the given page, and if passed in the query string, the viewstate variable will cause the page to error out, due to "too long of a query string" which happens to also be too long of a url.
I cannot merely remove the viewstate variable - I need it. But I need to pass the viewstate variable along via some method other than get when the form is submitted, while the other inputs of the form (the non-hidden inputs) are appended to the query string.
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Aug 12, 2011
I am in the process of switching over a control from a GridView to a ListView, but am stuck on accessing the new ListViews DataKeys. My ListView is setup as follows[code]...
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Sep 25, 2011
i am passing paramters from one page to another all witht he same name...how do i look through them?
dim sHtmlBody
sHtmlBody = ""
for i=0 to Request.QueryString("name").Count
[Code]....
this is what i am doing and it works. But how do i access the individual name
Dim Name = Request.QueryString("Name")(i)
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Aug 31, 2011
While creating instance of a Delegetae there comes a intellicence AddressOf , Sub and Function .
AddressOf signifies the address of the function or Sub , what does Sub or Function signifies ?
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Apr 2, 2009
I need to see if a passed uielement (control) has a particular property like borderthickness, itemsdources, backgroundcolor and so on
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Nov 27, 2009
The parameter to a sub is being passed a value like 501/500, of coarse this value should be converted to 1.002. Unfortunately, the actual value being passed to the parameter is 1.0.
[Code]...
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Oct 28, 2011
I am working on a little program (game) is called Pig latin. I created a sub procedure and I passed the word to be converted by value and the piglatin word byref.Now when I call the procedure in the button click event I get the wavy green line under the variable passed by reference but the program works ok. Call Convert_to_Pig_Latin(strOriginalWord, trPigLatinThe error message when I hover my mouse over the green line says " Variable strPigLatin' is passed by reference before it has been assigned a value. A null reference exception could result at runtime."
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
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Apr 9, 2009
The code in my function looks like
FunctionMain(Product,var2,var3)
Call Function1
Call Function2
[code]....
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Feb 9, 2011
I'm having a heck of a time getting this to work....on other forums there isn't a problem with passing text to the websites but this site is driving me nuts.
[Code]...
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