Built In Base Number Conversion Functions In .Net Specifically Decimal To Hex?
Mar 20, 2012Are there any built in base number conversion functions in .Net specifically decimal to hex?
View 7 RepliesAre there any built in base number conversion functions in .Net specifically decimal to hex?
View 7 RepliesI have been using this code for a long time now and it has always been accurate. I recently tried to convert a large string from one base to another and some weird stuff happens.
When I convert from base 36 to base 10, the result is accurate. When I convert the result back to base 36, it becomes inaccurate.
[Code]...
I'm looking for a decimal to alphanumeric number base converter library in Visual Basic that does not use recursion. [url]...
which includes a demo app but discovered that it uses recursion. The problem with it using recursion became apparent when I attempted to integrate the library into my own Visual Studio Express 2010 Visual Basic project: I got a stack overflow exception.
Now I could consider increasing the size memory allocated for the stack but it might be hard to determine what this would be, given that the recursion depth might vary depending on the value to be converted.
What is the cleanest, most readable way to String.Format a decimal with the following criteria
start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s
format number to hower many number on left of decimal and 1 decimal without rounding
View 2 Repliesi have an application that's in development, but some modules of the application are already built, so the application it's installed in several computers. In my code, i call an external class that i built with several functions that i use in multiple applications, in this class i have a small piece of code that checks in the network (internal), if a new version of the application (Msi File), of the current application it's available, and if it's available, it runs the Msi file.
msiexec /package MSIPackage.msi That worked fine in windows XP, but now some machines have been upgraded to windows 7, and the user need other credentials to run the package. (Elevate Privileges). Other problem it's that in my application i create several folders in the installation and the user doesn't get any permissions to write in the folders.For example i have one Log folder, and i can't write any logs to it.
My question is: how to delete a specifically cell in sql datarow from a specifically datatble to insert i have the folowing
Dim AgendaData As New AgendaData AgendaData.TijdDagWeekJaar = TijdDagWeekJaar.Text AgendaData.WeekJaar = WeekJaar.Text AgendaData.JaarMaand = JaarMaand.Text AgendaData.Jaar = Jaar.Text AgendaData.textbox2 = onderwerp1.Text AgendaData.textbox3 = Onderwerp2.Text AgendaData.textbox4 = Onderwerp3.Text AgendaData.textbox5 = Onderwerp4.Text AgendaData.textbox6 = Onderwerp5.Text
[Code]...
So I wanted to check when last a table was changed, and I basically came up with this query:
SELECT DB_name(database_id) as [Database],OBJECT_NAME(object_id ,database_id) AS DatabaseName, last_user_update
FROM sys.dm_db_index_usage_stats
where DB_name(database_id) = 'Database Name'
Now what I want to do is put this in my code using LINQ. I have added the view to my datacontext and all that good stuff, but I don't really know how to do the SQL built in functions DB_Name and OBJECT_Name. I realise that I could do some sort of join to get the values for the id's instead, but I don't know which views I can find the database name and object name in.
Is there a linq equivalent to these functions? Alternatively, what are the system tables/views I need to look at to convert these ID's into their respective names?
I've got a BaseDataClass with shared fields and functions
CODE:
I have several classes that derive from this base class. The derived classes have all Shared functions that can be called directly from the BLL with no instantiation. The functions in these derived classes call the base Init(), call their specific stored procs, call the base CleanAll() and then return the results.
So if I have 5 derived classes with 10 functions each, totaling 50 possible function calls, since they are all Shared, the CLR only calls one at a time, right? All calls are queued to wait until each Shared function completes.
Is there a better design with having Shared functions in your DAL and still have base class functions? Or since I have a base class, is it better to move towards instance methods within the DAL?
I've got a custom NumericEditor control that has a nullable Decimal property called Value. When I bind a data field to Value, I'd like to retrieve the underlying Type of the data that's bound, so that I can restrict the use of decimal places if the source field is an integral data type.I figure I'd have to do this in the BindingContextChanged event, but how do I get the Type of the data field from the binding itself? My Google-Fu is failing me at the moment.
In short, I'm looking for something like the GetValueType method mentioned in the following question: Simple databinding - How to handle bound field/property change. Winforms, .Net I imagine this method would also be handy if the Value property was an Object.
i have 2 textbox's 1 button and im trying to convert the text in one textbox(decimal) to show a hex value in the other textbox via the button click event
View 3 RepliesI want to convert numbers from 0 to 15 like that
[Code]...
Problem is that when we convert 2 to binary number it gives only 10 in binary, but i want to convert 2 to 4 bit binary number 0010.
I am calling the function below from an Excel spreadsheet and the conversion from hex to decimal using the VAL function in the "manufacturer" variable below is coming back with a negative value. The VBA edition is 6.5.
Public Function decMEID(ByVal sKey As String) As String
Dim manufacturer As String
Dim serial As String
[code].....
I write a program to convert Decimal numbers to Binary numbers. It is working well. But I want to control the bits. i.e - We can write 31 as a) 11111 or b) 011111. When I run my program it displays 11111. I want to take input bit from a text box and display it like 0011111 or 011111 or what ever bit I input. How can I do that ?
Private Sub DecToBin()
Dim i As Integer = txtDec.Text
Dim binary As String = Convert.ToString(i, 2)
txtBin.Text = binary
End Sub
I'm writing a small program that will convert a negative number (e.g. -200) to a hexadecimal number (e.g. FF38). And back to a decimal number. FF38 back to -200. (I can only use two bytes when converting back and forth.)
Question: is there a function in VB that will help?
Is there any alternative to VB's CBool keyword in C#?
What about all the other functions?
CBool will turn to a Boolean any valid boolean: 0, "False", null etc.
i have the decimal 0,22727272727272727272727272727273 and i like to convert it to hour, minute, second, the zero represent hour.
View 6 RepliesSo, yes, I've tried with these three formats, and the problem remains the same:I have a string, "s"For Each s As String In stringarray and this array is recieving data from a streamreader that is reading a csv file. The data I'm having dificulty reading are these very specific numbers(yes, only these numbers, because phone numbers get home safe and sound).The numbers I'm talking about are usually decimal.ValueList.Add(Convert.ToDecimal(s))
Now, when I convert them like that, they always bring a "D" alongside with them. I've personally checked the string multiple times, and it just has a "1", and somehow, my list recieves "1D" as a number, same thing happens with decimal numbers(0.29D for example). I've tried with Doubles and Integers, the result is the same.
I have this code for a decimal to binary conversion in a calculator. It is working, but when I entered numbers with decimal, the conversion didn't work.[code...]
View 3 RepliesI am writing a program that asks the user for their name and the number of pieces they completed. The employees are paid more depending on the amount of pieces they have completed(i.e. <200 = .50 per piece, 200 to 399 = .55 per piece, etc.). I have to display the amount earned when the user enters the info and hits the calculate button. I have to use Select Case.
I was thinking this would be an easy program but I keep getting an error for each Case saying "Option Strict On disallows implicit conversions from 'Double' to 'Decimal'. I don't understand why it thinks it is a double. It says I can correct this problem by adding "Cdec" before each equation(i.e.
[Code]...
in simple application, when i am trying to convert string "$2432.23" to decimal (i have taken reference from a book, that cDec can handle $ and , ), it gives error InvalidCastexception
Dim amt As Decimal = CDec(txtSubtotal.Text)
i entered "$2432.23"
VS 2008 Conversion from string to decimal problem on XP and 7
View 1 RepliesHow to use built-in classes in VB.net for sorting the following number in the desired order?
Number: 5,10,24,9
Desired order: 5, 9, 10, 24
I want to take more than one number separated by one space from txtDec textbox and display their binary form again separated by one space in txtBin textbox.
My code below ---
Private Sub DecToBin()
Dim i As Integer = txtDec.Text
Dim binary As String = Convert.ToString(i, 2).PadLeft(8, "0"c)
txtBin.Text = binary
End Sub
I have a problem converting decimal number from label's string to decimal... (for example Label1.Text = "0.5"). It works fine on Vista, where I made my application, but it doesn't work on XP and 7. It converts from 0.5 to 5
VB
Dim dec1 As Decimal
dec1 = CDec(word1) * CDec(u1.Text)
'word1' is an integer. For example, if word1 is 100, on XP I get result 500.
im having trouble understanding this question for a homework assignment. I need to write the PSEUDOCODE for the following scenario, but i got no idea about how to convert a hexadecimal number to a decimal number..You are required to input a two digit hexadecimal number eg. 3f (digits can be entered separately) and calculate the equivalent decimal number. (note the decimal number will be between 0 and 255) . output the decimal number
View 1 RepliesTo allow a textbox to contain "15" or 15.5" as numbers nothing else...I figured that ^\d+$ works for numbers but can't get decimals to work also?
View 1 RepliesPlease excuse the newbie question as I started learning VB last week . I wrote the following test code below to add two values entered in two textboxes and display it in another textbox. However I keep getting the exception. "Conversion from string "" to type 'Decimal' is not valid" with the code below and I cannot figure out why . I thought converting using 'CDec' resolves this issue ?
View 3 RepliesI have a xml node, which can be shown in immediate window as
?Me.SelectSingleNode("./FloatAmount").InnerText
"100.00"
?typename(Me.SelectSingleNode("./FloatAmount").InnerText)
"String"
However, I want to return a decimal value.
?cdec(Me.SelectSingleNode("./FloatAmount").InnerText)
Run-time exception thrown : System.InvalidCastException - Conversion from string "100.00" to type 'Decimal' is not valid.
Cannot implicitly convert type 'decimal' to 'int'. An explicit conversion exists
View 1 Replies