Iterate Through String And Modify
Mar 5, 2010
I've done some VB Script and I know C++ fairly intricately. I'm having trouble understanding, and making for loops with if statements perform as expected. What I'm trying to do is iterate through a string and turn all of the "a"s into "c"s "b"s into "d"s and "c"s into "e"s? Here's what I've got thus far and I'm keeping the old string intact.
For i = 0 To first_string.Length - 1
If first_string(i) = "a" Then
second_string = first_string.Replace("a", "c")
ElseIf first_string(i) = "b" Then
[Code] .....
I can do this for loop in my sleep in C++, but it seems that the increment counter i is never what I expect it to be. It should start as 0 (first letter of string) replace whichever of the three it finds, then change to 1 (second letter of the string) and replace whatever it finds there right?
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Apr 29, 2009
I have a string which I've split into an array. I need to change a value in the array and join the string together. However I cannot set the value of the array variable as it's read only.Is there any way to do this without creating another array?
Dim LineOfText As StringDim aryTextFile As String[code...]
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Aug 6, 2010
I have a variable holding a string that is set to the value of 'B Recipes'. I need to know how to modify the string so that the new value is 'B'.
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Dec 28, 2010
I am working in visual studio with a datagridview that is bound to a mysql database via the .net mysql connector. In my vb app I have some text fields that provide the necessary fields for building the connection string which I have defined as:
[Code]...
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Jan 12, 2011
I need to work with Decoding so that I can Increase/Modify a String Value from 32 entries to 75 entries, and to include the corresponding checkboxes also.
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Jan 14, 2011
Is this possible? Currently I'm using a login form that passes txt box values to string and then use as variables in the hand coded connection string (for each query) is there a way to use this with a table adapter? something similar to how access remembers your login credentials when accessing an ODBC table? I've tried editing the connection string in the config file, but says it's invalid every time. I'm only using the table adapter to populate my form after running a hand coded search query.
This is what i use for manual insert/update/delete query
Private sConStrFormat As String = "Provider=TDOLEDB;Data Source=TDDEV;Persist Security Info=True;User ID={0};Password={1};Default Database=bcpm_ddbo;Session Mode=ANSI;"
[code]....
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Sep 13, 2011
You will find attached the source code of a small program. I wanted to know if it was possible to modify the connection string in Web.config and use a connection to MySQL. I made some attempt, but does not connect.
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Apr 19, 2011
I am working on a text-based game and as your character moves, you get informations such as the room name and below, a description (Lorem ipsum in the example) which is an array of string. I would like to know how to append characters to it. I am actually trying to display a minimap made of ASCII character. See the second bloc code for an example.
From:
code:
Into:
Room Name Here
code;
The game itself is made in VB.NET but a solution in pseudo-code is also welcomed. Also, each line's length is aproximatively the maximum length it must be.
The desired output must be an array of strings because this data is later send to a client connected using sockets.
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Nov 18, 2011
I have a DataGridView with one column, I set for that column
DefaultcelStyle->Wrapmode=True
Modify data a with a long string, I call also
vb.net
DataGridView1.AutoResizeRows()
DataGridView1.Refresh()
But the DataGridView doesn't refresh wrap,il looks like this : I change manually current selected row moving to another record and now the refresh is done :
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Feb 19, 2012
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim fso, inputFile
Dim str As String
fso = CreateObject("Scripting.FileSystemObject")
[code]....
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Jan 27, 2012
I'm using a DynamicJsonModelBinder from a blog post to pass my JSON data from JavaScript to my ASP.NET MVC Controller as a DynamicJsonObject.
Have a look at the blog post: [URL]
I converted it for my project to VB.NET : [URL]
Imports System.Dynamic
Imports System.Web.Helpers
Namespace MyNameSpace
[Code]....
This works. In my controller, I can access my jsonObject like this: obj.ID '123
But I haven't got an idea yet how to iterate through all properties. I can get all member names as a IEnumerable String Collection (obj.GetDynamicMemberNames()), but how do I use the TryGetMember method to access the value of a member ?
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Aug 15, 2011
I have a VB Web Application with a bunch of textboxes on it in Default.aspx (Using the basic template in Visual Web Designer 2010 Express). I'd like to iterate through those textboxes using some sort of VB solution if at all possible and clear them when the user presses a button. I've tried using something like this:
Dim cControl As Control
For Each cControl in Me.Controls
If cControl Is TextBox Then
[Code].....
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Jul 7, 2010
[This is a simplified example] I have a collection ("myCollection") in which exists three entries: ("hello", "goodbye", "welcome"). I want to iterate through the collection and if in the collection there is the entry "welcome" I want to take one action, if that entry doesn't exist I want to do something else. Like this (pseudo):
[Code]...
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Jan 15, 2010
I need some help with a LINQ query in VB.Net, please.[code]This works, and returns me the data I need to work with. Now I want to iterate through the groups, using a For Each construct. like this: For Each x In drivers Next...However, the compiler is barking at me, telling me that the "'x' is not accessible in this context because it is 'Friend'."
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May 19, 2011
I have a simple XAML file with a grid in it and textboxes. But when using my code it does not find the textboxes by iteration.
VB.Net:
Dim ctl As FrameworkElement = Me.MainWindow
Code:
Dim ChildrenCount As Integer = VisualTreeHelper.GetChildrenCount(ctl)
'ChildrenCount is always zero
For i As Integer = 0 To ChildrenCount - 1
Dim Child As FrameworkElement = VisualTreeHelper.GetChild(ctl, i)
[Code].....
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Jan 31, 2010
I have a BindingSource bound to a DataTable.
I use the BS Filter and would like to iterate the filtered dataset of the DataTable using the Bindingsource.
I know I can do a MoveFirst and the MoveNext and each time using the BS.Position get the correct row in the underlying DataTable. But how do I know when the sets ends? I'm sure there must be such a property, but what is it?
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Nov 27, 2010
if I run the following code,For each itm in MyList Next if the list is nothing i got an error..Is there a better way to deal with list=nothing than using a condion like [code]
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Apr 26, 2012
I want to iterate through an equation and modify a number e.g. Multiply it by 10, where there is one. How do I do this?
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Mar 26, 2009
I have a structure with types ranging from thread's to control.what im looking for is a easy way to iterate through those item like For eachbut i couldn't get for each to workis there a way to do it
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Dec 15, 2011
I am having trouble looping through the following XML file and returning the proper values at each level.
XML File:
<?xml version="1.0"?>
<Domains>
[code]....
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May 27, 2010
I am working on MS Excel 2000 form and inside VB code, I want to replace following block of code with a loop.
OptionButton1.Value = True
OptionButton2.Value = True
OptionButton3.Value = True[code]....
post an example of a working code to replace 10 lines below with a loop and still be able to set the OptionButton values iteratively ?
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Mar 23, 2011
I'm debuging an complex calculation object in my project, and I'd like to show its various and many properties in a textbox, to make my tests easier.
Can I do something like
for each p as someKindOfProperty in MyObject1
debug.print(p.name & " - " & debug.print p.value)
textbox1.text = textbox1.text & vbcrlf & p.name & " - " & p.value
next
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Jul 20, 2011
I'm trying to iterate through each line of a multiline textbox. Something like:
For Each line In Me.txtBox1.Lines
Response.Write line.Text
Next
Is there any neat way to do this, or will I need to write a character-by-character parser and look for carriage returns?
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Oct 13, 2010
I have List (Of Report). Report has 90 properties. I dont want write them each and every propertiy to get values for properties. Is there any waht to get propeties values from the List
Ex: Dim mReports as new List(Of Reports) mReport = GetReports()
For each mReport as Report In mReports
'Here I want get all properties values without writing property names
next
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Nov 22, 2010
We have a common component in our source which contains all the enums (approx 300!) for a very large application.Is there any way, using either C# or VB.NET, to iterate through all of them in order to perform an action on each one?
How to iterate all "public string" properties in a .net class is almost relevant but the enums I am dealing with are a mix of types.
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Jan 22, 2009
I have List (Of Report). Report has 90 properties. I dont want write them each and every propertiy to get values for properties. Is there any waht to get propeties values from the ListEx:
Dim mReports as new List(Of Reports)
mReport = GetReports()
For each mReport as Report In mReports
[code].....
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Jun 25, 2009
Lets say I have 30 text fields in a Frame on my form, and I want to set them all to disable (so users can't edit them).Is there an easy way to walk through those fields without having to create an array of text fields?
I.E., in ... VB 6, with an array of text fields, I can do something like this:
For i = 0 to 10
txtfield(x).enabled = true.
Next i
Is there something in VB.NET where I won't have to use an array of controls, something like this (assuming all txt fields are in a frame):
[Code]...
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Apr 20, 2009
Is there some way I can iterate through all available attributes for a given html element
something like:
for each lo_Attrib as attribute in htmlElement.attributes .........
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Feb 7, 2012
I need an elegant way using VB.Net to iterate through a range of IP addresses when the input will come to my app as a string in this format: 192.168.100.8-10 This range would include 3 addresses: 192.168.100.8, 192.168.100.9, 192.168.100.10. I found a solution in C# that uses the IP Address class that I could probably convert to VB but it seemed to be way too much code for what I need to do. I could definitely use a bunch of string parsing functions but I was hoping someone already had a simple way of doing this.
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Mar 10, 2009
I have created a collection of structures. Each structure, of course, contains fields.
Lets say something like:
Public Structure clientStructure
Public ID As String
Public firstName As String
[Code]....
How can I access a field of a particular structure using for.... each?
That is, how can I retrieve out of the collection (lets say item 5's) firstName, using for...each?
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