Storing In A Single Variable In Linq?
Jan 24, 2011how to store multiple variables in a single one to be stored in string?I have some 5 linq variables which am trying to store in a single string...Can you tell me how should i do so?
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Storing Multiple Words As One Variable To Use Instr() To See If Any Of It's Variable Words Are In The Text?
Jan 26, 2012other than GML (Yoyogames.com Game Maker Language), I am new to the coding world. The only "major" project I have completed using VB is a computer calculator that exactly mimics the capabilities of Windows 7's calculator. Yesterday, I began a Chatbot program for my girlfriend. Lol. I have used the instr() function to answer most of the questions or answers which are typed into the textbox1. I find this extremely troublesome because when using the instr() function you cannot say instr(textbox1.
Public Class Form1
Dim fos As String = "Foster: "
Dim ash As String = "Ashley: "
[code].....
Reading XML And Storing In Variable?
May 18, 2011I am trying to retrieve a 'tag'(Is it called that?) from an XML webpage. Once I make a post request from my vb.net app it sends a command to my online webserver and redirects me to a page that has entries that change each time. The page that im redirected to that changes each time looks something like this:
<mainpage> <id>hello</id> <random>176</random> </mainpage>
What vb.net code would I use to retrieve the id (In this case 'hello') and store it in a variable.
Assigning A Variable To A Class Then Storing?
Sep 30, 2009i'm working on a code that i want to start creating new classes with but i want to know if there's a more direct way to send the variables used in the form to a new class for storage.
for example i've got this on a form...
Dim ClassID As String
Dim ClassName As String
Dim Grade As String
[Code]....
you know? so what would be my most direct route to get this? how should i start?
Error In Storing An Image Into Variable In .net
Mar 10, 2011i need to retrieve an image from accessdb and store it in a variable m getting an error in the following code
'this is to retrive an image from database Dim User_Pic As Byte() = DirectCast(dtUserLogin.Rows(0).Item(11), Byte())this is to store image into a variable userpicture = User_Pic userpicture is a bitmap as shown Public userpicture As bitmap
Storing A String Variable Value In Windows Registry
Apr 21, 2011I want to store a string variable value in the windows registry If the below is a correct statement. My.Computer. Registry. SetValue ("HKEY_ LOCAL_ MACHINESYSTEMMyKey", "Start", "ABC")i will declare a string variable Dim strvalue as String strval = InputBox("Enter a string")and now i want to insert the User given value in the Registry Key as above in place of "ABC".
View 2 RepliesStoring A Text Box Date Entry As A Variable?
Mar 11, 2010I have the following code for part of an application I'm building and I need some instruction on how to store this value and carry it to the next part of the program. Private Sub dateEntryTextbox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dateEntryTextbox.TextChanged
[Code]...
VS 2008 Storing Ftp Password Into Application Variable?
May 16, 2011I have an application that is updating from my ftp server.Inside app I have 2 variables like this:
myFtpUser="ftpuser@mydomain.com"
myFtpUserPassw="myftppassword"
I obfuscate exe using Eazfuscator.For two times someone deleted all files from ftp account,I suppose he got the ftp password,is it possible to got it from my app exe ?Is it enough protected ?
VS 2010 - Storing Data In Some Type Of Variable
Jan 19, 2012I have data that I want to store in some type of variable where I can easily access when needed. For example I have:
google.com -> This is a cool website.
yahoo.com -> News website
gmail.com -> Mail website
I want to be able to store those in some type of group so if I go like:
get data of google.com without going through a loop.
Storing Data From A Database Into A Variable To Perform Calulations?
Aug 23, 2011i am trying to write a program which reads a data from the database and perform some calculations. what i am intending to do is when a user selects an item from a listbox and clicks the submit button the program, calls a function to calculate using the value stored in the database and display the result in a textbox.the problem is i cant store the data retrieved from the database into a variable so that the calculations can be done. i am using vb and microsoft sql server.can anyone tell me how do i store the data retrieved by the query into a variable.
View 12 RepliesVS 2008 - Storing Selected Item In ComboBox To Variable On Button Click
May 10, 2010I have 13 variables, all called Items1, Items2, Items3 and so on. I have a combo box with items in, each time I click a button I want it so whatever is selected is stored in a variable and if the button is selected again then it stores whatever is selected in the next variable. I know all the code for selecting items in a combo box and transferring it to a variable but the problem I cannot do is the part where each time a button is clicked it stores whatever is selected in the combo box to the next variable.
View 9 RepliesSelect A Single Object Using Linq In Program?
Mar 18, 2011I have done a lot of searching to what appears to be a simple LINQ problem but I can't figure out how to do grab an object out of a collection that has a specified minimum (or max value) without resorting to a sort like this[code]...
View 3 RepliesAsp.net - Single Quote In LINQ Results Causing Error
Jul 14, 2011I have the following LINQ query:
Dim find_id = From p In dbContext.Residents _
Where p.person_name = occupant _
Select p
I then pull the first returned ID like so:
Dim building_id As String = find_building_id.FirstOrDefault.id
This works fine, except with the person has a ' in their last name, like M'arta. In this case I get a NullReferenceException.
Okay, the problem appears to be that when I am capturing the name initially from a GridView it is inserting into the value a #39 instead of ' and then LINQ is keeping things correct, so I end up with a non-match since it is attempting to match:
M#38arta = M'arta
DB/Reporting :: Display Single Record From Linq Query?
Mar 24, 2011For a school programming project we are supposed to create a database with 2 tables country, and continent.then we populate country with every country name, population and continentID. For continent we populate with each continent name.
i have completed this step, and i am able to run a linq query to display all countries and corresponding continent into a datagridview. My problem arises because we are supposed to display each record one at a time, and be able to cycle through one at a time. I cannot for the life of me figure out how to do this.
for example if i made a query to select all countries in africa, i want to beable to display the name of the country, and population in textboxes. then have a next button that will go to the next record.
Linq - Select Single Item From Child Collection?
Jan 12, 2012I have a parent child collection objects and was wondering how to get a single item from the child collection using Linq
[Code]...
C - What Is The Value Of Second Byte Of A Single Variable
Nov 7, 2010I have a variable as a single. what is the value of second byte of my variable.or what is the value of third byte of my variable value in memory.?in c language we use at like this *(char(&x)+1)which method do the same thing in vb.net
View 1 Replies.net - Pass An Expression To Act On A Single Field In An Anonymous Type In LINQ?
Mar 27, 2012I have the following Data Transfer Objects defined:
Public Class MemberWithAddressesDTO
Public Property Member_PK As Integer
Public Property Firstname As String
Public Property DefaultAddress As AddressDTO
Public Property Addresses As IQueryable(Of AddressDTO)
End Class
[Code]...
LINQ Return Single Type Of Object Invalid Cast
Jun 29, 2010Ok, just needing a 2nd set of eyes looking at this to make sure the error isn't something else other than my LINQ code here. Here's the function class itself:
Public Function GetJacketByPolicyID(ByVal jacketID As Int32) As tblPolicy
Dim db As New DEVDataContext()
Dim j As tblPolicy = db.tblPolicies.Single(Function(p) p.policyNumber = jacketID)
Return j
End Function
and here is the code which calls this class function in the web control form itself:
Dim p As tblPolicy
Dim j As New Jackets()
p = j.GetJacketByPolicyID(3000050)
For some reason it's flagging the 2nd line in the GetJacketByPolicyID function saying the specified cast is not valid. So I'm guessing it's something I'm doing wrong. I'm sure the tblPolicy/tblPolicies class works right since I can create a new instance of a tblPolicy and set a few variables by hand and return it, so that's not it. I've also checked the datarow I'm fetching and there's no null values in the record, so that shouldn't be it either.
Linq To SQL - How To Return Values For A Single Date In Datetime Format
Nov 30, 2011I am trying the following to select a long date, but becase the value is stored in SQL database as DateTime I am unable to return any results unless minutes and seconds match perfectly...I then tried to use 2 calendars and have the same issue with the DateTime format..
CODE:
VS 2008 - LINQ Query - Groups And Counts On A Single Dgv Cell ?
Aug 11, 2010I have a LINQ query that groups and counts on a single dgv cell. What I want to do is group and count on 2 dgv cells. So I modified my existing query by adding a SELECT statement highlighted :
CODE:
But I am getting an error on the second select variable stating: Range variable 'Value' is already declared
What I have read shows that I can select more than one variable.
What I am trying to achieve is this:
Original
CODE:
Result:
CODE:
Directly Set The Bits Of A Single Variable?
Mar 27, 2010I'm a newbie in VB.NET, I am trying to directly set the bits of a single variable. For example - dim afloat as single afloat = &h0000000c afloat will then be set to to '12'. However, I wish to actually set the bits of afloat to &h0000000c, which will give a different value.
View 1 RepliesWay To Reveal The 4 Bytes Behind A Single Variable?
Feb 18, 2010Since I like to use the ReadAllBytes and WriteAllBytes methods to save my variables to disk, I have had no troubles thus far with Integers.It has been easy to convert a short integer into a string of two bytes to save them using WriteAllBytes as following example:-
ReDimxji(0 To 601)
For I% = 0 To 300
J% = hbs(I%)
[code].....
But now I want to store some Single variables using WriteAllBytes, so I need to convert my single variables to a string of four bytes for each.
.net - Working With The ObjectQuery Single Enumeration Challenge In Linq-To-Entities Entity SQL?
Dec 30, 2011I'm working on modifying this example:
Using advWorksContext As New AdventureWorksEntities
' Call the constructor that takes a command string and ObjectContext.
Dim productQuery1 As New ObjectQuery(Of Product)("Product", advWorksContext)
[code]....
An ObjectQuery can be enumberated only once. (Subsequent attempts at enumeration throw an exception.) The enumberation takes place in the for each statement. The problem is that if the query is empty attempting a For Each will throw an exception. But if I check for a count:If productQuery1.Count > 0 Then . . .
That eats up my one chance at enumeration. I could nest the For Each in a try/catch block and throw away the empty query exceptions, but that's ugly.
Assign A Number To A Single Variable It Does Not Equal The Same Value?
Nov 2, 2010I have been searching the internet trying to understand in its simplist form why this behavior happens.
Dim mysingle As Single = 456.11 Dim mybool As Boolean = mysingle = 456.11
In the lines above mybool becomes false. I found this behavior when putting the single into a double I found extra digits showing. The .net documentations states a single is an approimate value I gatehr a single is a 32bit floating point number? But why are extra digits appearing when I have explicitly said what the number is.. surely the memory should store that numbers either side of my number are 0 to fill up the memory location?
Access Single Bytes That Form A Double Variable?
Sep 20, 2009How can I get access in a fast way to the single bytes that form a double variable?
In pseudo-code I want to do something like this:
Dim myDouble as Double
Dim myArray(7) as Byte
myArray = myDouble
'continue doing things with the single bytes
The code is meant for use in a I/O-handler. The double-variables have to be sent / received via TCP. For this purpose they shall be put into / assembled from I/O-buffers.
Change The Variable StrLettersGuessed Into A Single-element Array?
Jul 12, 2009How do I Change the variable strLettersGuessed into a single-element array
View 4 RepliesObject / Array Reading (Row Or Column) Into Single Variable?
Apr 9, 2009I have a variable defined as Object(,) that was read in from excel. Without getting into a for/next, is there a simple way to read the c-th column or r-th rown from that array into a single variable?
View 2 RepliesRepresent More Than One Value In Either A Variable Or Single Index Position Of An Array?
May 13, 2010I have a very large number of tables with data in the following format:
A X Y Z
1 0-2 0-13 0-1
2 3-5 14 2-4
3 6-9 15-16 5-10
In other words, there is a variable (call it A) with a single value that corresponds to a range of values in the other variables (call them X, Y, and Z).My program needs to accept user text input of values of X, Y, Z, etc. and then match each to the corresponding value of A.Example: User enters 4 in the X text box; program determines that if X=4, A=2.Again, we're talking about tables and tables of data in this format. Unaware of a better method, I have been using arrays.
Example:
Dim a() as double = {1,1,1,2,2,2,3,3,3,3...}
Dim x() as double = {0,1,2,3,4,5,6,7,8,9,10...}
Note how I had to artificially deal with variable A so that the index of each score corresponds to the index of the matching X variable.It is this modification of the variables that is taking forever. There has to be a better way! Hypothetically, what I need is the ability to do something like this:
Dim a() as double = {1,2,3,4...}
dim x() as double = {0 to 2, 3 to 5, 6 to 9...}
Is there a way to represent a range of values at a single index of an array, such as my hypothetical example above? This would save me hours of re-shaping the data to make the arrays work.
Select Multiple Lines Then Push That Out To A Single Variable
Nov 20, 2011I have a listview box. I load the listview up from a text file and everything is divided into three groups. I need to be able to select multiple lines then push that out to a single variable, separated by commas. Two things are happening that are problematic:
1) If I just have it set to smallicons and no checkboxes, anything I select is highlighted right up until the control loses focus at which point everything un-selects.
2) If I turn on checkboxes, I can click boxes and they stay selected when I lose focus BUT the checkboxes are cut off on the left side of the control. (The checkbox appears to go off the edge of the control.) There's plenty of space in the control for the checkbox and the listed items.
Single Global Variable Which Can Be Manipulated By Multiple Forms
Jun 14, 2010can we have a single global variable which can be manipulated by multiple forms
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