How To Import System.IO
Aug 16, 2011I dont know how to and ever time i think i do it wont let me import
View 3 RepliesI dont know how to and ever time i think i do it wont let me import
View 3 RepliesWith the following imported namespaces in my project :
Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..
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We had a wierd problem at work.SOmeone at finance tried to import a text file into their system. It complained about the textfile was in unicode format. The file contains scandinavian . Apparently the ERP system that exported the file can only handle unicode.So one of our junior programmers wrote a batch program that line by line converted the unicode file to ascii (you can't choose encoding.ANSI because ANSI is byte array)
The files are rather big, about 3 GB in size.Apparently the system liked ASCII files, but sadly after this processing the and was gone and replaced with ?So, he wrote a new batch program, this time replacing m?nad with m�nad using String.Replace The file was opened using Encoding.Default and saved using Encoding.Ascii.Now the files HAVE AND can be imported. After he explained this to me, I just went . I wish I had some nifty "you should have done this... bla bla its much easier" but I am lost here in the jungle of code pages and encodings. Can someone that has their head screwed on straight enlight us *both* about why we had this problem and how it could be handled without writing the second batch program?
Basically unicode->non unicode (ascii) with the intact. I also noticed that if I use streamreader to read an ansi file with the internal strings will show ? instead.
I am trying to develop an application to monitor and keep track of all the prints in the office.I have gone through some of the tutorial and found out system.printing has the functions to do so. But when I tried to import it, it says name space or type specified for system.import doesn't contain any public member or cannot be found.
View 2 RepliesI'm getting a message when I try to import this namespace that "Namespace or type specified in the Imports System.Windows.Media.Imaging doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined etc..."
View 7 RepliesI am attempting to read Excel 2003 cell content through a Visual Basic 2008 program. Searching Help for the subject yielded an example Function named XLGetCellValue (ByVal fileName As String, ByVal sheetName As String, Byval addressName As String) As String
This function required the following Iports:
Imports
System.IO.Packaging
Imports System.Xml
Imports System.IO
upon pasting the above three Iports to the Program, Igot the following error message:Warning 1 Namespace or type specified in the Imports 'System.IO.Packaging' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.
I can't import the System.DirectoryServices namespace. It doesn't pop up if that little box thing.Why?
View 2 RepliesI have the following piece of code that contains my message body in an email I'm trying to send via vb.net (through outlook) The code works, but .net is not recognizing the HTML formatting and is giving the error: "XML literals and XML axis properties are not available Please Add references to the System.Xml.dll, System.Xml.Linq.dll, and System.Core.dll assemblies". I try and do this by going to Project --> add referance, but they are not highlighted and I can't select them. Is there any way around this?
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it's a log in form and I need to put case-sensitive validation in other words if your Username = Admin then Admin != admin Consider this code block (VB is really unfamiliar for me so break it to me gently ^^) This is after it has matched a record in the database to the parameter passed to the function LogIn()
If dataTable.Rows.Count > 0 Then
'case-sensitive Validation follows
'data in Column ID and Password are placed in variables
[code]....
the asterisk-ed line returns an error (obviously) as strId is not of data type String.I also tried using LIKE but again since strId and strPass are not Strings, all I get is an error.
how can I import the System.ServiceProcess namespace into a WPF project in VB.net (not C#)? The ServiceController object is not in the toolbox in VS2008 and can't see to figure it out. Any ideas? If that particular namespace cannot be imported into WPF projects, could somebody suggest another way of controlling windows services from a WPF application? I know this framework is focused more on multimedia apps, but would really like to switch over some of my tools to WPF.
View 2 RepliesI need to take a bill of material file from a customer in xml format and import it into our system. The problem I'm running into is that the terms they use to describe the types of material may vary. So, for example, if they are specifying a piece of threaded rod, they may call it "THREADED ROD", "THREADEDROD", "THRD ROD", "THRD'D ROD" or some other variation. Another example might be rectangular tubing. They might call it "RECTANGULAR TUBING", "RECT TUBING", "RECT TUBE", etc. There will be many types of material besides these two that I need to catch. Once the program determines what the material is it then branches to the appropriate subroutine to do further parsing. I was trying to think of a way to use regex or the "Like" or "Contains" operators to do this. Here is one way I thought of using "Select ... Case" but it isn't very flexible & will only catch hard-coded terms:
Select Case material
Case "THREADED ROD", "THRD ROD" 'etc...
Case "RECTANGULAR TUBE", "RECT TUBE", "RECT TUBING" 'etc...
End Select
In Visual Studio 10 - Visual Basic, why can't I import "System.Drawing" when my only reference is "System"? I can import "System.Runtime.InteropServices".To reproduce my problem:
1. Create a New Project in Visual Studio 10 with Visual Basic Class Library template.
2. Add "Imports System.Drawing" and "Imports System.Runtime.InteropServices" at the beginning.
3. Remove all references except "System" in the References pane of the project properties.
Result:Visual Studio cannot find "System.Drawing" but it can find "System.Runtime.InteropServices". "System.Drawing" is fully qualified so the system should be able to find it inside the referenced "System".
Thoughts:It appears "System" and "System.Drawing" are distinct namespaces (or containers?) so why doesn't qualification "." work? Does "." represent something else? "System" is also in "mscorlib" but is that the namespace which is used or is it another?"Microsoft.VisualBasic" is also listed in the imported namespaces but there is not a reference to it. How was it found? Where is the "Imported namespaces" list populated from?I have been looking through it for a while but cannot understand why "System.Drawing" is not imported.
Is there a way to "Import" a static class in C# such as System.Math? I have included a comparison.[code]...
View 3 RepliesI have got a MySQL database that has got some dates stored in a Date format (YYYY-MM-DD) however when i try and import the data i get an error saying: "Unable to convert MySQL date/time value to System.DateTime"
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I want to write a program in vb2008 that can import a text file into a Access 2000 database, but using import specifications already in the access database.
View 2 RepliesVB 2008, DataGridView,DataGridView1_CellLeave(sender, New System.EventArgs)
"Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.DataGridViewCellEventArgs'."
What is the Correct String for "New System.EventsArgs"
Anybody there is to help me out.
I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
What do I need to convert?
Dim CEESearchByAppNo = From CEEsearch In dbCEE.tblScanneds _
Where CEEsearch.AppNo = iAppNo
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I am getting the following erro message: "Unable to cast object of type 'System.String' to type 'System.Predicate`1[System.String]'." on the line of code: If Not StrgFrag.Exists(wrd) Then I was expecting a True/False response and assumed it would work given that wrd is a String variables and StrgFrag in a List(of String). Do I need to reference the wrd variable differently? Dim StrgFrag As New List(Of String)
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I am using VS 2008, Office 2007, and Win7 Home Premium on my system.I have a simple application which should be a breeze to build. All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll
As I said, the project seems to build fine, but it will not pull the data. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?
I have a utility that is a simple exe that is not installed compiled with VS2005 and works well. But when I upgraded to VS2008 the utility can no longer locate files in the active system folder. I have UAC turned off and am logged in as the Administrator and it still can not locate a file that I can see in Windows Explorer. The file I am looking for is PakMgr.exe.
View 1 RepliesI'm using express 2008 build the windows app. and in the app, it calls a webservice which was built by VS2003.It works fine on most PCs. however, there is one PC, it always shows this error:
System.TypeInitializationException: The type initializer for 'System.ServiceModel.ClientBase' 1' threw an exception
....
System.configuration.ConfigurationErrorException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException:
Unrecognized configuration section system.serviceModel
.....
however, the configuration file was generated by express 2008, and it seems there is no error.
I have a text-boxes that use both the validating event as well as the lostfocus event.I have pinpointed the exception in the post title to the validating events.[code]Maybe I am unaware that CancelEventArgs are not suppose to be used in the validating event? [code]
View 4 RepliesI'm trying to use DataView.Rowfilter and I'm getting an exception which says "Cannot perform 'Like' operation on System.Int32 and System.String".
Here's the code...
Dim str2 As Double = CDbl(searchSTR)
Me.shipperDV.RowFilter = fieldName & " LIKE '*" & str2 & "*'"
I would like to create a local user on a windows 7 PC, but gets the following error when commitchanges runs. I am administrator on the PC:
A first chance exception of type 'System.UnauthorizedAccessException' occurred in System.DirectoryServices.dll
Here is my code:
CODE:
I am using Visual Basic 2010 ultimate in Visual Studio 2010.
Here is the stack trace:
2012-03-16 19:15:09Z E System.NullReferenceException: Object reference not set to an instance of an object.
at System.Timers.Timer.set_Enabled(Boolean value)
at System.Timers.Timer.Stop()
Here's the code:
Timer declared as private member variable.
Private _myTimer As System.Timers.Timer
Initialize timer method.
[code]....
The timer has to have a value or else the Timer.Stop() call would be throwing the exception. This is a sporadic error and I'm just trying to see if anyone has experienced this before or if anyone has any ideas of what could be causing it. It is occuring in a WinForms application in the event handler for the Elapsed event of the Timer, but it is only occuring sporadically on the users computer. I haven't been able to reproduce the error myself.
I wrote the code below which calculates the length of a line on the form and save record. An error occurs when the programme tries to save the record. It gives me "Cannot perform '=' operation on System.Int32 and System.String" error. I checked the data type of "ID"(int), "Microscope"(Varchar), "Magnification"(int) and "Calibration"(Decimal), and they are fine so far as I know.
Code:
Private Sub btnEnd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnd.Click
'Check if the length textbox is not empty
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get out from the below loop
Shared Function GetIPAddress() As String
Dim sam As System.Net.IPAddress
Dim sam1 As String
[code]....
I have a program that creates a Treeview from information procured through an ODBC query and dumped into a dataset. I have three such queries set up via radial buttons as well as a refresh button that triggers whatever radial button is active at the time it's clicked. The purpose of this program is to allow drag-and-drop of selected nodes, ending with a post to the database that officially makes that change of assignment to the new node.
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Private Sub wb_Scrape(ByVal sender As System.Object, ByVal e As
[Code]...