Direct Access To Full String Representation Of Object
Jan 23, 2012
I am trying to log the contents of an object to a text file. If I do a debug.print of the object itself in the immediate window, it prints all of the values of the object's properties:
However, I can't seem to access this as a string in code due to a type mismatch. I assumed I could get this information using the .ToString method, but all that returns is the object description with none of the properties or values:
I want to make a hashtable of object references and I want a different object's reference to be the key. How can I do this in vb.net? In java (assuming I am using the default toString method and that add() takes a string as a key and an object ref as the value) this would be something like: hashtable.add(obj1.toString(), obj2)
I do not want to use a vb.net gethashcode() function because I want deep clones of objects to have different identifiers. A related question is what is the default toString in vb.net? How can I get a string that represents an object reference in vb.net?
I want to retrieve an object by using a string representation of the objects name. For example lets say i want to change the font of 3 labels on a form programatically. Instead of changing the font property for each individual label like so:
I'm looking for a way to convert a 5 character time representation to a date object. ie. "0937a" should be "6/16/2010 9:37 AM" or "1215p" should be "6/16/2010 12:15 PM".
I am trying to convert a string to a single. Ive tried csng() directcast() and single.parse. The first two methods crash. Single.parse says input string was in incorrect format. The number is 777.7932 so should convert fine. Ive tried it this way:
how can i convert a string representation of a single data type that is read from a text file into its single data type. I checked control panel and globalization settings are set to english.
<edit> Now showing the difference as a DECIMAL. Result looks like zero every time. </edit>Disclaimer: This code is provided "as-is" and should be treated as Freeware.( However any donations would be welcome as I have a "so-so" part-time job ).Please note all real numbers to be used should be in this format "0.000000000000"Do not use numbers in string format in scientific notation like "1.2345E -06"I was feeling bored and decided to add to the code from JohnWein in this thread where I have used a routine that will multiply the contents of two long strings together.>>[url]I have now added a bit of code so you can multiply two really long numbers with or without a decimal point as a full-stop ( period or dot, call it what you like ).
I have this problem, I can create a setup for my app/database but everyone can open the backend file which is an MS Access database. I want it so we can only access the database using the frontend app.
So I'm building an application that is going to do a ton of code generation with both C# and VB output (depending on project settings). I've got a CodeTemplateEngine, with two derived classes VBTemplateEngine and CSharpTemplateEngine. This question regards creating the property signatures based on columns in a database table. Using the IDataReader's GetSchemaTable method I gather the CLR type of the column, such as "System.Int32", and whether it IsNullable. However, I'd like to keep the code simple, and instead of having a property that looks like:
I have a ASP.NET page called admin.aspx that needs to be protected from direct access. I want it to be accessed only when the user enter his name & password in another page called login.aspx I'm working in ASP.NET with Visual Basic .NET 2008, and I have no idea how to do it.
I'm making a VB.NET application with an SQL Server 2005 in the background. Naturally the user can not edit the database directly but will use a number of UI features to be able to add and modify the data.However, there are a few tables that should be easily accessible from the admin interface such as specific information about a vendor. What's the easiest way to let the user edit this data freely? One way would be to use a DataGridView but this could appear complicated to the user, plus I'm not sure exactly when to save the edited data back to the database.
The best way that I can think of is to create custom dialog boxes for adding, deleting and changing the information, but this seems like too much work for such a small feature.
I want to know if I can directly read or write values in the current process in a Visual Basic 2005 Windows application. Like *(DWORD*)(0x123456) = 1; in C++ will write the value 1 at the address 0x123456. So anyway to do the same in VB using only built in functions and not using ReadProcessMemory and WriteProcessMemory?
I don't know if I explained this in my title, this is what i want to do. (In VB on a active server page) I have 5 buttons called but1.....but2. Right now I have the following code to make them invisible
In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.
I have inherited a database from somebody who has passed away & I have been asked to look after it.The data is in an mde file which i can use vb to display records i need to report on.In the database is a field for dob which is date/time structureThe date in the database is 23/jan/1874If I display Rs("BirthDate").value i get 23/01/74If I say Dim Bdate as date="#" & Rs("BirthDate"),value & "#" & display Bdate, I get the same
Using vb.net 2003 asp.net 1.1. I have this C# function that I converted and I gettinga squiggley saying full and partial not part of string, this is converted from a .cs file.
Here is the function, maybe I'm not seeing something: Code: Public Function RefundTransactionCode(ByVal refundType As String, ByVal transactionId As String, ByVal amount As String, ByVal note As String) As String Dim caller As CallerServices = New CallerServices [Code] .....
If I have a small double in vb.net like this: dim x as double = 0.00000003 A conversion to a string would produce a E-presentation (3E-7). in debugging the value it will be shown as full number (0.00000003). How can I get the full number in a string?
I am trying to write a really simple piece of code that basically recognises if the string contains a full stop. The full stop can be anywhere within the string just a simple If String contains (".") Then
I have a method that takes 2 string arguments. One that contains a normal string and one that contains a string with one or more wildcard characters. I've tried the following code:
Private Function DoesMatchWildcardString(ByVal fullString As String, ByVal wildcardString As String) As Boolean Dim stringParts() As String Dim matches As Boolean = True
[code]....
The I realized that it won't work properly. If I have ABCD as a normal and A*CD as my wildcard string the match will work even if my normal string was CDAB, which is not what I want.
In my project I need to use a 190 very long strings with different number of characters (4-60).I want to mark them in a short form with the numbers 001, 002, 003 ... 190. Is there an easy way to display the full name of the string when I choose a short name ? Of course, I do not want to write 190 times "if - end if" and also I would like to avoid a complicated database. Onenew Visual Studio 2010
I have a project which has a table with a list of stores. Originally the store code was a string of 3 and was padded so 1 would be 001 etc. I have had to increase this column to 8. The problem is when I read in data from a XML file the store code is padded so it looks like this '500 ' rather than '500'. This is now causing a major problem when I do a comparison.Is there a way to it does not auto pad to the full string length?
I have made quite a nice and tidy little game. Its based around space invaders and works quite well. however because i have finished my college project almost 2 weeks ahead of the assignments release date, my tutor has asked me to tweak my project and make it better.So far i have added a full main menu to the game and a full splash screen. I would like to add in a section for recorded high scores but have no idea how to attempt this at all.
I thought I was done with the tree view control until i realised that my tree view control was behaving differently when it came to sub nodes . I have attached my treeview pic and also a sample tree view.
(-)D: |_config.msi |_netfile.sys
[Code]....
Since I clicked on subfolder1 i was expecting the msgbox to display D:Folder1Subfolder1 but unfortunately the msg box doesnto even have the name of the node i clicked on but when i use selectednode.text I get the correct node text. Anyways why isnt my full path working. I then tried manually designing the entire scenario using tree node editor and the code which i mentioned above works. But whenever i populate the trr programatically the above problem starts.
Occasionally I encountered this exception message while trying to download file from a server using System.Net.FtpWebRequest and System.Net.FtpWebResponse Object.
Download a file.ftpRequest_DL.Method = WebRequestMethods.Ftp.DownloadFile get the response object Dim ftpResponse_DL As FtpWebResponse = CType(ftpRequest_DL.GetResponse, FtpWebResponse)
I was create Access database with Access 2003. I create VB project with Visual Studio 2005 Standard With connection wizzard I create coonect with this Access database, select all tablesI see this database inside Data sources and inside Server explorer Test connection is OK When I drag and drop table from Data sources, Wizzard don't create DataGridView, DataSourceBinding etc .. and I see popup window with mesage: Object reference not set to an instance of an object and then "game over"
I have a solution with several Projects in it. There is a Windows App project (called ImportClient), and a Class Library (Import.Library). The Import.Library has functions to perform data imports (I have other applications in the solution that also need to call it). But the interactive application, I want to be able to pass in some form controls, and have it update the GUI. No problem. But, I also want to execute a DoEvents() so that the loop execution doesn't hang other interaction to the app.
So, ImportClient has a reference to Import.Library. But I can't add a reference to ImportClient to the Import.Library, because the compiler complains about circular reference, etc. I don't know how else to define the My.Application object of ImportClient as a parameter to the data function in ImportLibrary.
(I realize this is a dumb question - problem is, for this project I have a tight timeline, and haven't learned how to do the BackgroundWorker process. If you think I could pick it up quickly, I'm open to some hints about how to update the progress bar on the GUI, and how to pause / cancel the background task.)
how to use VB to access our SQL server - we've got an app that was coded in Access 2000, using DAO, which in Access 2010 (if I understand right)is DOA, and we should use ADO. So I worked up MSDN's example (http:[url].. In Visual Studio 2008, Visual Basic. I have added in a Reference for MS ADO 2.8 Library to my project. I can see in the Object Browser the ADODB Namespace, and I can look in there to see the ObjectStateEnum, and there is the adStateOpen enumeration. Wonderful. But in my code, I must put it this way:
I must be missing some glaringly obvious thing, but none of the items that are declared as Public Constants in the object library are "visible" to my program. Why?
