The following line of code gives a warning with Resharper: 'Comparison of floating point numbers with equality operator. Possible loss of precision while rounding values.'
Dim samples() As Single
If samples(i) = Nothing Then
samples(i) = _mPreviousSamples(i)
End If
What is the best way of checking if a value is present?
i am trying to validate an email address by making sure that there is an @ symbol present in the text box. So far i have the following code.[code]I get a blue line under the "@". How do i get this to work? Or is there a better way to do this?
View 6 RepliesIs there any better performance by checking for a true value like this:
[CODE]..............
Than like this:
[CODE]..............
How can i find out whether a BOM is present in a file or not. Depending on the presence of BOM i need to parse a UTF-16,UTF-8 file else I have to display Incompatible format.Kindly tell me what is the procedure to find if BOM is present or not. I have tried using FF FE for UTF-16 and for UTF-8 Bom. but i need to find whether this BOM is present or not how can i do it in VB.Net
View 2 Repliesi am getting following error when i am running AJAX enabled ASP.Net application
The control with ID 'FilteredTextBoxExtender1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.
even though i have ScriptManager in my page
<form id="form1" runat="server">
<asp:scriptmanager id="ScriptManager1" runat="server" />
<div>
[Code].....
what i need is i what to get all information within the parenthesis of Sin().for example , i have created one one textbox in my user interface.i wanted users to enter some trigonometric expresiions like " sin(90+(25+25))"for that i what all the information present with in the parenthesis of sin()
view sourceprint?
01
Public Class Form1
02
[code]....
I have a web application with a number of pages, I would like to display the sitemaps for this application diagrammatically, is there a professional/recommended tool for doing this? I am using MS Word using flowcharts, but it doesnt look very professional.
View 1 Repliesthis is pradeep, i m vb.net learner,my English not good dont mind what i need is i what to get all information within the parenthesis of Sin().for example , i have created one one textbox in my user interface.i wanted users to enter some trigonometric expresiions like " sin(90+(25+25))"for that i what all the information present with in the parenthesis of sin()
View 5 RepliesI'm an avid programmer, and I'm trying to teach myself more professional practices, but Ilook over my code, and point out any mistakes, or bad practices I may have attached to this actually working bit of code. It consists of a procedure for retrieving, sending, and above all connecting to a server program. As for the various amounts of sloppy commented out code, after a long time clearing my head, I came to my senses so to speak.
Imports System.Net.Sockets
Imports System.Text
Imports System.Threading.Thread
I would like to know if it's possible run a form without present it in the screen...
View 14 RepliesI am in the process of creating a program that is linked to a database. I want to automatically generate a reference number that is not already present in this database, to do this i know i am going to need to search the database to check whether that number is already present or not. But I am unsure of the best way to go about this. I am using an access database and vb.net.
View 8 RepliesI've been getting the following error from time to time and have been unable to determine the cause of it:"The given key was not present in the dictionary."The line that this is occurring on is:If CType(ViewState("FieldType"), MYClass.FieldType) = MYClass.FieldType.ShowOnDirectory ThenI have no idea as to why it is throwing this exception on this line. I thought that perhaps an invalid value was being placed in the ViewState so I tried while debugging setting the value to Nothing and setting it to a value that wasn't in the enumeration and it still works. I was originally storing the enumeration in ViewState and then went to storing just the Integer equivalent in there
View 4 RepliesI'm working on a ASP.NET website project using VB.NET as backend code. I was looking for a way to show the header/footer of a gridview even if no data is present. I'd like to use this solution as it looks pretty clean (although it's written in C#): link I have converted the code using an online tool, resulting in: [URL] This however shows an error on line 77: "Events cannot be declared with a delegate type that has a return type"
View 1 RepliesI've started building a small game where you move around a PictureBox control with keystrokes using the arrow keys. Everything was working fine....until I added a button.
Now the button steals the focus so that every time I hit an arrow key hoping to move my image, it just selects the button.
Is there any way to make the button selectable only by mouse click?
I have an XML document that starts like this:
<GMRCTranDS xmlns="http://tempuri.org/GMRCTRAN.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<FILENAME>M05167P1000025T22330</FILENAME>
[Code]....
I use the media player tool in my program and just found out that some people get a serious exception on the loading of the program if they choose not to enable media player. How can I make it so that if they don't have media player enabled that the program won't crash?
I don't know where the designer puts the info to load certain controls, nor do I know how to make the program skip loading a control if it doesn't work.
I need to enable /disable Nic I have a system with two nic cards "Local Area Connection" and Local Area Connection 2" my code will enable and disable the second nic no problem but when I try to disable /Enable "Local Area Connection" it sees the nic but disables "Local Area Connection 2" code to the Enable NIC.[code]...
View 5 Repliesi am working on a small VB.net project and i was told to include a function where if the registered date of birth of a member equals todays date (Day and Month of course), an alert should be triggered , maybe an alarm or a Msg box poping up whenever the application is loaded saying that today is Member X birthday.
View 5 RepliesI have looked in the documentation for visual bsic 2010 a part visual studio 2010 and the obect broswer should be available from the VIEW menu in the designer view or in code view. The browser is not present and no botton on any tool bar.
View 1 RepliesI am using the following code to bring up the keyboard map in an application:
System.Diagnostics.Process.GetProcessesByName("Filename.exe")
System.Diagnostics.Process.Start("osk")
It works great, but I also have three radio buttons that change the language at the application level only, and when I click one, the language on the keyboard map should update, but does not. The only time it updates is when the mouse is over the keyboard map. Is there a way to detect if the keyboard map is shown, so I can make it update to the new language?
You cannot just make a variable like:keyboardMapPresent = True - because you have to also be able to detect when the keyboard map is closed!
I am looking to create a simple program which loads information from a txt file. Here is what I am trying to do: Form 1 will give option to choose the title. The txt file will be like the below (new line for each new subject):
[Code]...
I am not looking for someone to code this for me, just put me in the right direction I am looking to create a simple program which loads information from a txt file.Here is what I am trying to do: Form 1 will give option to choose the title. The txt file will be like the below (new line for each new subject):
[Code]...
I have the following method that creates a cookie in the page's response. Immediately after I create the cookie, I checked to see what the value was and it was blank. Is this normal behavior? How can I check the response for a cookie after it has been added?
When I monitor the HTTP response, the cookie is there. When I use the Firefox Web Developer Toolbar to view the cookie, it is there. However, it doesnt appear to be present in the Response.Cookies collection. How do I access it?
Dim c As New HttpCookie("prpg")
c.Expires = DateTime.Now.AddYears(10)
c.Value = value
[Code].....
How to print the contents present in the gridview using Vb.net
View 1 RepliesI would like to add a way to see if an entry is already in a connected database in the following code. If it is then don't add the entry and pop up a dialog saying something to the effect of "already been scanned" and if it is not, proceed as usual.[code]
View 2 RepliesIs there a simple method to tell whether a certain word is present in the webbrowser (not the source, but the visual stuff).
I can't use the source because it takes too much time to load when it's a rather large site page. And I believe I can't use instr on webbrowser1.HtmlDocument.
Who can point me in the right direction, I didn't find any solution myself with google. I only need to know if for example the word 'New' is present on this page, so a True or False must be returned
Is it possible to set IF case using the images present in the datagridviewimagecolumn?
Example:
If current row image = "Red.png"... show error msg
If current row image = "Green.png"... Insert to database
I am making a booking system application for a sports club....In my sqlserver database I have two tables one is named as Memberships and the other is named as Bookings...Now what i want is to allow a new booking for only those customers who have a membership...In database i have joined both tables by cust_id attribute where Memberships table is parent and Bookings table is child....I want that when a new booking is tried then it should first check if the customer id is present in database or not..If it is present then the booking should be allow otherwise not...but my code either shows error first and then allows the booking Here is my code for this:
Dim i As Integer
Dim str2 As String ' defines string variable for taking select query
str2 = "select Memberships.cust_id, booking_date, booking_time, booking_duration, game, poolno, courtno, tableno from Bookings, Memberships where Memberships.cust_id = Bookings.cust_id"
[code]....
I have been unable to have the Parent Form present itself when I run the program. I believe that I have all of the properties set correctly for the various forms (2 Child Forms have been added to the Parent Form).
Here is the code I am working with:
Public Class frmFinancialCalculationsMDI
Inherits System.Windows.Forms.Form
'frmFinancialCalculationsMDI'
[Code].....
just created a classlibrary project named CreatingDll and i did this
Public Class Class1
Public Function getComboTable() As DataTable
Dim dt As New DataTable
[code]....