[code] If there is an error inside the Using block how do you clean up the sr object? The sr object is not in scope in ErrHandler so sr.Close() cannot be called. Does the Using block cleanup any resources automatically even if there is an error?
View 3 RepliesI've got a class that looks like this
[code...]
What is the best way to "clean up after myself" when I am done with this newFS object?
I am completely new to ASP.NET programming, and was asked to work on a small project involving ASP.NET, VB (which I am new to as well) and Microsoft SQL Server 2005.Being used to php/java I was hoping to find some kind of similar API to php.net and the javadoc. It would be very useful to have as I would prefer to work with a text editor, instead of using DreamWeaver or Visual Web Developer.In the project I basically only need to use ASP.NET to read from a SQL 2005 database and write to JSON files. where to find a clean and decent API to work with?
View 4 RepliesHow to clean up a string in Visual Basic .NET? I'm creating a string as a report with line breaks. However, the string is built based off of screen scrapes from a TN3270 emulator. The string is saved successfully with all of the data I require, but those annoying rectangle symbols show up once I send it to a notepad text file. Do you know anyway I can strip those out and clean up the output?
View 1 RepliesI'm trying to clean-up after an exception, and I'm not sure how to handle a StreamWriter.[code]If somethingBad1 throws an exception, I don't need to do anything to sw; however, if somathignBad2 happens, sw has already been created and I need to close it. But How do I know if sw has been created or not?
View 3 RepliesI tried implementing the below code for receiving emails. I got it working but the email message format needs to be cleaned up. My objective is to extract the http urls. I listed 2 examples of email message output that I got. [code]...
View 1 RepliesI need to simply identify if a particular tag occurs in an XML document. At this point my XML solutions, much like my regex solutions, are based on limited knowledge and are far from elegant. Is there a better way to achieve the following:
For Each e As System.Xml.XmlElement In xmldoc.GetElementsByTagName("stat")
parse = False
Next
What the benefit for Clean Selection in vb.net
View 2 RepliesI'm currently making my first program, its an active directory clean up tool. Right now I'm having diffculty getting it to search sub OUs that it sees, I can get it to look at one layer of the sub OUs. I just want more of a dynamic code so I don't have to keep repeating it like I did do. Also I'm not sure that I'm looking through active directory the best way.
[Code]...
I declared my multidimentional array like this:
Dim invoice_discountitems(100, 1) As String[code]...
Now how i can remove the filled items of this array?
I don't want to delete the contents i just want after the first insert to make combo box showing nothing..but when i will click i wanna see the list of items that it has!!!
View 4 RepliesI need to get strresult to give me a clean string with no punctuation from strinput. I wanted to store that in strresult. My main goal was to write a loop to check the textbox input - strinput for letters a-z and store them in strresult and compare the reverse of that to strinput. I can do codes like mom, and things like that and it reads them, but when i add characters like mom! and red rum, sir, is murder...I am not stripping the punctuation off correctly.
[Code]...
My app is basically talking to a device via RS232. I need to 'listen' to the data received and do certain things based on it, update labels, etc. When I started, I only had a couple cross-thread calls and I used JMC's example to get by that. Now my app is bigger and I am calling the ThreadProcSafe all the time. I am hoping there is an easier way so I don't have to create sub routines for every control. Here's the relevant parts of my code.
Private Sub StepperSerialPort_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles StepperSerialPort.DataReceived
Dim ReceiveBuffer As String
[Code].....
I've created an app, which puts windows onto the desktop. When i click on the window it creates a new window and passes the first window's Items collection to the second window's Items collection. Opening the second window adds around 2-4 megs of memory to the app's mem usage. Now if i close the second window, the memory still stays on the same level as when the window was opened. When closing the window, i reset the Items property and clear all images that i'm using in it. It has a wrappanel with some elements, that's also cleared using the .clear function of the wrappanel.children. What else should i do to free up the memory?
View 3 RepliesI am making and antivirus in visual studio 2010 using VB.Net using MD5 Hasher algorithm. Plz help me how can i clean a file infected with virus? Note that byy "Clean" i mean repair the infected file to a secure stage, "Remove" is used for deleting the infected file (which i already done.One more thing that i have done the selection of a custom folder or drive, but how can i code behind the "full scan" button. means when user cllick full scan button, it automatically scans full my computer drives including usb flash drives (if attached".
View 9 RepliesI would like to know how to get a image/screenshot of a Windows Form in .NET while it is running as it would have been seen in the designer/when it is first opened, i.e. without any text in controls etc. Basically I would like an image of the form as it's clean copy.
View 1 RepliesPrivate Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
' Create a GraphicsPath.
Dim graphics_path As New Drawing2D.GraphicsPath
' Add some text to the path.
[code].....
Is what I tried after researching how to get clean text on an aero window, but it is still not nice looking.
I have a table in a Access Database that I'm loading into a VB.NET program and I want a way to get the name of each of the columns into a list of Strings. Googling has shown that this is much easier with a SQL database, but that doing so in Access is much more difficult. I came across this question Is there a query that will return all of the column names in a Microsoft Access table? Which gives a way to do it, but when I try the code it just populates my list with a bunch of "System.Collections.Generic.List'1[System.String]"
This is my adapted code.
Public Function GetColumns(ByRef database As String, ByRef table_name As String, ByRef columns As List(Of String)) As Integer
Dim com As OleDbConnection
Try
com = New OleDbConnection(database)
com.Open()
[Code] .....
My for each loop isn't printing the right string. Should be Console.WriteLine(holding)
I have this html. I'm trying to get its InnerText without any tags in it,[code]What am trying to do is get the text as the user would see it from the class thisclass.I want to strip any script tag, and all tags, and just get plain text.
View 1 RepliesWhat I am trying to do is set the options for disk cleanup , run disk cleanup and wait to reboot until it is completed cleaning up once it is done the system should reboot. Currently it does all this but with an oddity I see two disk cleanup windows come up one shows what it is cleaning up the other one shows gibberish instead Im wondering why I am getting two of these...
[code]...
I copy/paste controls in the projects, then I noticed that there are many controls are listed in designer.vb which actually are not being used. how can I clean these? will it affect the UI performance? or, it does nto matter at all
View 4 RepliesIm my SQL server I have 2 columns one for user inputed username(user enters in HelloWorld123, HelloWorld123 is entered in the table) and the other is a clean version(user enters in HelloWorld123, helloworld123 is entered in on the table.) this is really similer to a regular forums login. what would the sql query to check column 1 and 2 (clean, user input) and see if they match. this is the spot im stuck at right now.
View 1 RepliesI am trying to create a string1 in My.Settings and used the My.Settings.Save method and it is working perfect. The problem is that the default value is "My Name is X" and the given saved value at runtime is "My Name is Z", when the next time I run the debugger in VS2010 with F5 key i am getting the new value only not the original x, I tried to clean, rebuild the app but still the new value is only showing up, how to debug with original values
View 5 RepliesI am trying to create a string1 in My.Settings and used the My.Settings.Save method and it is working perfect. The problem is that the default value is "My Name is X" and the given saved value at runtime is "My Name is Z", when the next time I run the debugger in VS2010 with F5 key i am getting the new value only not the original x, I tried to clean, rebuild the app but still the new value is only showing up, how to debug with original values?
View 1 RepliesI found this code to rotate a picture online somewhere and made some changes and it works beautifully. My only problem is how much memory it uses. Does anyone see a way for it to use less memory?
Code:
Private Sub RotatePicture(ByRef bm_in As Bitmap, ByVal angle As Integer)
' Copy the output bitmap from the source image.
[code].....
I have a problem with stopping line from being spaces.Is there a way to do this? The text sheet can look like this.[code]...
View 7 RepliesHow should i clean up after drawing to an image on a timer? I am getting a memory leak BTW I don't really understand why this is necessary; i mean shouldn't .net automatically clean up when an object has no longer any references to it?anyway here is basically the outline my
vb
Private Sub MainTimer_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles MainTimer.Tick
...
Dim FaceBit As Bitmap
[code]....
I've noticed something in vb that is rather disconcerting, and now i'm trying to find if there is a way around id. Given the nature of enumerated types, they are more or less substitutes for named values, usually grouped in some sensible manner for readability as well as other things. Now, .Net added the FlagsAttribute() for affecting a Enumerated type so that it can reference multiple values (bit flags) for additional support. (Basically it is easier to say If MyEnum And MyFlag as opposed to if MyNum and 65536) However, sometimes we just want to cycle through our enumerated values For x = 0 to N Next I've noticed that with Enumerated types, it is ever so annoying in two folds:
A) Dim X as MyEnumType = 8 '<- Causes a Type Error : Cannot implicitly convert Integer to MyEnumType
B)
For X as MyEnum = MyEnum.Lowest to MyEnum.Highest
Console.Writeline(Ctype(x, integer))
Next
[code]....
However, as per usual, VB cheats, and performs the latter (violating VB's own Strict Typing rules) and thus if I have 8 enumerated values, each representing a Bit value from 1 to 256, How can I smoothly (with not extraneous executions) run the loop from lowest to highest. (now of course this is bitwise, so i could do a while loop with a << operator, but let us just assume we don't know the values of all the Enumerated elements, we just know they aren't sequential (+1)). I want a loop that ONLY executes the ACTUAL elements of an enumerated type, nothing in between their intrinsic values.
I have created an application that would calculate NFL rating based on statistics pretty much everything is correct but how would i seperate the public function into multiple private one's while still performing the same actions? Example, Private Function CPA( Rather than having a single public function witch performs every step needed
Here's what i have
Dim intcomps As Double
Dim sngInts As Double
Dim sngAtt As Double Dim intcomps As Double
[Code].....
I'm implementing some custom serialization (to byte array), and have run into a problem handling circular references.Example:
Class A
public MyBs as new List(of B)
End class
Class B
public MyParent as A
public MiscInt1 as integer[code]....
If I know that an instance of B will only ever be serialized through the serialization of an instance of A, then I can handle the setup of the MyParent reference from the instance of A and not even record that information inside the byte buffer for the instance of B.This doesn't feel quite right, but it might be the best solution.