Enum Or Array - Store The Values
Jul 5, 2009I have the following code which obtains the compass direction from a degree value. I'm new to VB.Net and was wondering what is the best way to store the values, in an Enum or an Array?
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Cast Integer Values To An Array Of Enum Values?
Jan 2, 2009cast integer values to an array of enum values?
View 2 RepliesENum Names And Values Don't Match For Same ENum
Jan 2, 2012RE - FilesystemRights Enum
This Code:
Dim FSRS As Type = GetType(FileSystemRights)
For Each fsr As String In [Enum].GetNames(FSRS)
TextBox1.AppendText(fsr.ToString & vbCrLf)
Next
Store Values To Array?
Mar 25, 2010I am trying to create a "Generate Number" application. It needs to generate numbers ( 1 - 100 ) and add them to the array. I have the numbers generated already and outputed into a list box. but I am not sure on how to add them to the array.
I have generated the numbers using for...next and do while loops. But I haven't been able to get the right syntax to be able to add the numbers into the array. [code]/...
How To Store Values In Byte Array
Mar 29, 2009I'm trying to convert old code to VB in VS2005. The code I'm working on is used to store values in a string, which will then be handed to a proprietary scramble function. This function is a given in this case. I've already switched from a string to an array of bytes in my .NET code.
The old code (VBA) was using a string value to store the data, example function for Double value:
Private Function DoubleToStr(ByVal value As Double) As String
Dim Bytes(7) As Byte ' 0-7 Double is 8 bytes
Dim n As Long
CopyMemory(Bytes(0), value, 8)
DoubleToStr = ""
For n = 0 To UBound(Bytes)
DoubleToStr = DoubleToStr & Chr(Bytes(n))
Next n
End Function
The code basically copies the memory contents (using API call CopyMemory) of the memory (held by the double variable) to the memory held by a byte array. It then reads the byte array and converts it into a string. Workarounds could be to convert a bool or long to a string, though that would be expensive in terms of memory/storage eg. 1234564787 would be 10 bytes in a string where as a long is only 4 bytes (factor 2.5 increase).
How to retain the original precision? Converting it to a string would result in endless numbers. Another problem (at least I think it could be) is that in VBA the variables are rather simple, but in .NET they are all objects, so how to retrieve the actual memory location of the value? let alone garbage collection moving stuff around. How to get those variables stored in my byte array?
Store Calculated Values Into An Array?
Mar 8, 2011I am attempting to teach myself visual basic and I cannot figure out how to send a calculated value (on a button click) into a one-dimension array and then recall the last five values in a message box when the user exits.
Here's what I have:
Public Class frmInvoiceTotal
Dim totals(4) As Decimal
Private Sub btnCalculate_Click(ByVal sender As System.Object,
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Store Database Values In Array?
Apr 4, 2009I have a code which retrieves values from database
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i want to store all the values in a array for further processing.
Using An Array To Store The Inputted Values?
Sep 13, 2010I am a beginner at VB.net programming. this score calculator. The application is suppose to total up a sum of numbers added, show the count, and an average of the numbers inputted. I try using an array to store the inputted values. Now I'm have issues with my loop keeping track of the total. Also, how do I clear out the array to start over?
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Cannot Store Retrieved Values From Database To Array
Mar 21, 2011is that instead of receiving data from one row and assigning it to the same array Im receiving data from multiple rows, but the information is the same because its from the same one column from the database. The error I keep getting is 'index out of bounds of array'
here is the code
What it does is it loops through once and retrieves the first value from the db then it throw the exception when it goes to retrieve the second value.
Dim qBkNum As String = "SELECT BookingNum FROM Bookings WHERE BookingID = '1'"
Dim bkNum(5) As String
Try
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Using The Button Store (btnStore) The Values Are Perfectly Assigned To The Array?
Jul 24, 2009In my example, i use a class array to which I assign values looping through textboxes in my form. Using the button Store (btnStore) the values are perfectly assigned to the array (i use an msgbox to check).The problem is that when i created another button (btnTest) to test if these values can be read outside the btnstore code, I get an error (NullReferenceException unhandled) which informs me to use the new keyword (cannot be used with arrays).I suppose the same applies when trying to access the array from another form. The question is how can i assign the values to the array "forever" and be accessed from "everywhere" in my program ?(tried public, friend, redim preserve the array with no luck).
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Multi-Dimensional Arrays - Code To Set Array Values And Store Them In A Variable
Aug 7, 2010I have this code to set array values and store them in a variable,
Dim productName As String()
Dim productPrice As String()
Dim productCategory As String()
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How do you get the variable values to output like this?
<input type="text" value="Chang Beverages $19.00" id="Chang" /><br />
<input type="text" value="Ipoh Coffee Beverages $46.00" id="Ipoh Coffee" /><br />
<input type="text" value="Gula Malacca Condiments $19.45" id="Gula Malacca" /><br />
Create A Enum Or Enum Type Functionality Witch Return String (enum Returns Int) In .net
Dec 30, 2009I have a URL lets say . some time i need to send HTTP and some time i need to send it to HTTPS for that i created a enum:
Private _protocol As Protocol
Enum Protocol
HTTP
HTTPS
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Now when i get value back from protocoltype it returns me integer value as enum do so tell me how to get string from enum or other substitute.
Dim targetUri As String = setting.protocolType & "://www.mysite.com"
Any Advantage To Prefixing Enum Values?
Mar 24, 2011In this post Jon Skeet pointed out that the following code should be changed to conform with the .NET naming conventions. Doing that would also decrease the amount of noise in the code.
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I must admit, I was pretty much like a sheep and was following what others have done before me. I thought the prefix did not look right and then to have it twice did not make sense either. After looking at a couple of .NET Framework examples, it looks like this would be closer to the standard.
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C# - Get Values From An Enum Into A Generic List?
Nov 21, 2011I don't know how to convert the following line from VB to C#:
Dim values As New List(Of T)(System.Enum.GetValues(GetType(T)))
My version doesn't work:
List<T> values = new List<T>(System.Enum.GetValues(typeof(T)));
The best overloaded method match for 'System.Collections.Generic.List.List(System.Collections.Generic.IEnumerable)'
has some invalid arguments
The constructor-parameter doesn't take it that way - what cast (or else) am I missing?
For clarification: It is wrapped up within the following generic method
public static void BindToEnum<T>()
{
List<T> values = new List<T>(System.Enum.GetValues(typeof(T)));
//...
}
How To Get Enum Values To AutoComplete Without Typing
Sep 19, 2010In VS2008, you could write, for instance,
dim enumValue as MyEnum
enumValue =
And then as soon as you typed the =, you'd get a list of possible values of MyEnum. With VS2010, you have to type
dim enumValue as MyEnum
enumValue = MyEnum.
Before getting the list on typing the final. This makes for a lot more typing and seems to be a retrograde step ... is there an option I'm missing? (I have 'Auto List members checked in the Text Editor options under 'Basic').
Load Enum Values To A Combo Box?
Jul 20, 2009I have a enum,
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I need put the "text" value of all the above Enum values in to a combo box, how do i do it?
Neat Way Of Running Across All Values Of Enum
Jan 4, 2010Neat way of running across all the values of Enum?
i was looking for a way without have to use methods residing in [Enum]
Seaching An Array - Store In A 1d Array A Set Of 5 Place Names And In 2d Array The Distances Between Places
Jul 28, 2010I am trying to create the following program Store in a 1d array a set of 5 place names and in a 2d array the distances between the places. Ensure that the order of the places is the same in both arrays. When the names are places are input the distance between them is displayed. If they are not both in the table a suitable message is displayed
Dim town(1 To 5) As String
Dim Dist(1 To 5, 1 To 5) As Integer
Dim First As Integer
[CODE]......................
I think the best way forward is pass a parameter to the function findnumber.
Enum Values - Cast A String To A Pictureboxsizemode
May 23, 2009I'm struggling with enums
Private Enum sizeMode
AutoSize = 2
CenterImage = 3
Normal = 0
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Here i'm trying to cast a string to a pictureboxsizemode: PictureBox1.SizeMode = DirectCast(DirectCast(fields(4), sizeMode), PictureBoxSizeMode)
Added An Attribute For A User Readable Display Name To Enum Values
Mar 10, 2011I've added an attribute for a user readable display name to my Enum values.However my code to convert from the user readable display name back to the Enum (function ToEnum) seems very convoluted.I am wondering if I am missing a better way of doing this (I am using Visual Studio 2010 with SP1.) [code]
View 10 RepliesGeneric Class Array - Reading In A Excel File And Extract Data To Store In A Array
Sep 9, 2010I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]
View 2 RepliesEnum Item - Protected Name - Statement Cannot Appear Within An Enum Body
Mar 25, 2011I'm trying to declare an enumeration and one of the names I'd like to use for an item is not usable apparently. Where I am declaring 'STEP = 3', I get this error message in visual studio: "Statement cannot appear within an Enum body. End of statement expected." Is it possible to use STEP as an item name somehow? [Code]
View 4 RepliesVS 2010 : Copy This Array To A Temp Array So That The Temp Array Has All The Same Values As The Original Custom Array?
Jun 19, 2011I have an array of people stored in a custom structure array... how can i copy this array to a temp array so that the temp array has all the same values as the original custom array?
View 4 RepliesNullable Enum Verse Enum.None?
May 26, 2010Which is better, using a nullable enum or adding the value None=0 to your enum list?Using nullables requires more code, but I kind of like it since it forces me to think about the possibility. Otherwise I'm liable to forget about the None enum and fail to account for it being a special case.
View 11 RepliesSearch An Enum Value Inside Of An Enum?
Aug 23, 2011I've tried the code below but it always returns nothing, It should enter
Protected Function GetTotalDebitAmount(ByRef roEntryDetailRecordBaseList As List(Of PPDEntryDetailRecord)) As String
Dim iTotal As Integer = 0
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I need some one who evaluate the part below:
If CBool(Array.IndexOf([Enum].GetValues(GetType(TransactionCodes.Debits)), CInt(oEntryDetailRecord.TransactionCode)) > 0) Then
Store 5 Values And An Associated Unique Key?
Jan 9, 2012I am trying to store 5 values and an associated unique key. I need to search for this key and update the 5 associated values. I'm guessing I would use an object as the value but how do I get the values out from the object?
View 19 RepliesExport Values From Array Into Excel And Import Scatterplot Of Values?
Mar 28, 2011I am creating a maths programs that draws graphs for the user. so far i have placed 22 values into an array and now i need to import them to excel, draw the graph and import the graph back into the program to display them.[code]...
View 4 RepliesHow To Find Repeated Values In One Dimensional Array And Change The Values
Jul 14, 2009I am using Visual Basic express edition 2008.I am trying to know if a value in a single dimensional array is repeated in the array. If yes, then multiply one of them by 100. For example:
MyArray (14) = 12, 15, 18, 15, 18, 11, 15, 18, 16, 14, 18, 8, 12, 17, 10
In the above example:
MyArray (1) = MyArray (3) = MyArray (6) = 15
MyArray (2) = MyArray (4) = MyArray (7) = MyArray (10) = 18
MyArray (0) = MyArray (12) = 12
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Access - Store Different Data Values?
Apr 22, 2010I don't know if I can have several same forms to do the manager jobs, ACTUALLY THE STORE VALUES ARE DIFFERENT(those forms can have the independant data values to store into the forms), like if I can have the datagridviews to store the different values? SO,MY QUESTION IS if I can have several same forms(FROM ONE SAME FORM), and can store different data values into the forms with vb.net & access, OR I HAVE TO CREATE SEVERAL SAME FORMS.
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Select Statement To Store Values?
Jul 19, 2011Here is my select stament to store values when username and password and check boxes are check
com =
New OleDbCommand("INSERT
INTO Users (UserName,Password,IsAdmin,Read,Write,Change,REMOVE,User_st) VALUES ('" & txtusername.Text &
"','" & txtpassword.Text &
"'," &
CInt(chkIsadmin.Checked) &
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My problem is this wehen i add new record to my db it saves values like this the value of read column is as follows read = 1 when check box is checked and read = 0 when check box is checked but i want to save true or false instead 1 and 0 how to achieve this using vb.net and my db is Oracle.
