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 RepliesThe 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 writing sample code for Date conversion using VB.net.Problem i am facing that it is prefixing and suffixing with hash(#) symbol.ex : #2010-12-12#.How to remove # symbol so that i can only date.
View 2 RepliesI have a textbox called txtfullfee, which is populated from a table in sql server. The value is 50.00, what I want to show on the text box is 50.00 instead.From the properties menu can I set somewhere to have the sign infront of the value.
View 3 RepliesHow to store currency symbol(like Rs) in a textbox in vb2005.I have to do currency math and store it in database
View 8 RepliesHow to show currency symbol(like Rs) in a textbox in VB2005.I have to do currency math and store it in database.
View 2 Repliesi had to get the reference of an object/Control(for e.x a textbox) which is open in another .net application. I was able to retrieve the handle of that .net applcation form. but i was not able to obtain the reference of that form. I tried to using control.FromHandle(handle) function. but it returns a null for the handle i passed since the handle is not associated to the application I am running.I also tried to add the handle to my application with the following code.
Dim nw As New NativeWindow nw.AssignHandle(&H100300A) '&H100300A is a valid windows handle for an application which is open Dim c As Control = Control.FromHandle(nw.Handle)but c returned nothing.Is there any way using which i can get the reference of an object in another .net appliction from my application.
I have a SelectedIndexChanged function, as shown below;
Code:
Private Sub CmbPayMethod_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CmbPayMethod.SelectedIndexChanged
Call Oracleview()[code].....
What I want to do is that, if the text in textbox TxtOracleNo is the same after IndexChange, i.e., a user changes from BACS to Cheque and vice versa and the Text in TxtOracleNo has not changed meaning it doesn't exit, then a message box is prompted as
Code:
MsgBox ("Enter new Oracle number")
Also, it will be nice if TxtOracleNo textbox will be empty if oracle_no is not present in TblOracleNos. Presently, if it is not available it retains the previous value.
I have menu item, in which I have specified ShortCutKeys as "Del". On click of menu item I have called specific method. I have one form on which one textbox is placed. When I hit the "Del" key the same method which gets called on menu item click is fired. I want the default behaviour to be followed by the textbox. how to suppress the event to be fired and to achive the default behaviour of the textbox or other controls present on the form.
View 2 RepliesI want to make a password cache, and i want it to make sure it contains both Alphbetical and Numerical characters
I also want it to be atleast 6 characters long
How would I go about checking if a control (in this case a textbox) is selected? I have searched Google as well as gone through all of the possible functions and still found nothing. I know it's relatively easy as I've seen it done before but I can't remember how.
View 3 RepliesI have a search textbox.I need the code-behind to check the value of the textbox and act upon it accordingly. I need to differentiate between the different search criteria.[code]I have the number searches working properly (street number, parcel number and routing number). If I search for a street address, it sees the whole string as a string instead or it containing a number as well.I need it to differentiate it between a street address and the owner last name/street name.[code]
View 2 RepliesI have a test Listview with four rows. In the code below when I start at the top and check each row the textbox is populated with the selected value. When I randomly check a row the correct value (checked row) does not consistently populate.
Private Sub lvwInjuredWorker_ItemCheck(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles lvwInjuredWorker.ItemCheck
If lvwInjuredWorker.Items.Count > 0 Then
For Each lvitem As ListViewItem In Me.lvwInjuredWorker.Items
[Code] .....
I have three text boxes in a winform (.net 1.1).
I am expecting the user to type in a positive number or just to leave it as zero (default).
Is there a way that I can check that the user has typed in a number rathet than letters.
As I am coding it in VB.NET, I would prefer it if any answers where in VB style rather than C# or C++.
I'm using a Rich Textbox in my vb.net application on update form to take address value. My update query is generated at run time looping through the textboxes on the form and checking which fields have got some value and the corresponding fields are updated in the database. For Each x As Control In Me.Controls
[Code]...
best way to check if a textbox has only 4 numbers and isNumeric, for example i need to enter postcodes.I currently have:
If CDbl(txtPostcode.Text) <> 4 Or Not IsNumeric(txtPostcode) Then
MessageBox.Show("Postcode must be 4 Digits", "Error")
But the message box comes up regardless of whether there is 4 numbers, letters, or anything in the textbox. Its also used in the leave function of the textbox.
How I can check when someone uses the standard paste function via rightmouseclick? I want to check something before the text can be pasted.
View 3 RepliesI have been trying to check if a user has input a specific time format into a textbox.For example
1- User enters time in hhmm format
2- Checks the input
3- If wrong, MessageBox.Show("Need hh:mm time format")
I have only used IF statement with IsNumeric to check for number input but was unsuccessful with various attempts I can think of for checking a time format as I need Option Strict On and have the following error: Option Strict On disallows implicit conversions from 'String' to 'Date'.Is there a way to like check if the hh:mm has the ":" separator too?
I have below code in vb.net.
[Code]...
I want to check at client end whether the entered date in text box is future date. I mean this textbox should allow future date only. code the above problem using jquery or vb.net
Is there any better performance by checking for a true value like this:
[CODE]..............
Than like this:
[CODE]..............
I'm fairly new to ASP.NET & VB.I've been asked to take an existing textbox that is automatically filled with the current date and allow the user to either add a "+" or "-" and a number or a spcific number and convert that into a date.I underdstand the basic concept on how to do this, but I'm running into some problems using the proper commands in order for this to work.The Textbox is called txtDate.What I've tried to do is this:
If txtDate = '+' Or '-' Then
DateAdd("d", txtDate, today)
End If
Here is what the whole thing looks like:
Protected
Sub
DateEnter_Click(ByVal
sender As[code].....
Example i have string =D:aaabddddd.jpg
string =D:aaabdddddfsdfsdfdd.jpg
i want to flexible sub string from right to ""
so answer=ddddd.jpg and dddddfsdfsdfdd.jpg
We work with multi currency accounts and in my program i want the correct Currency Symbol to show against prices etcAs i am in the UK the default symbol is �. But what i would like to do is at the start of the program check what currency the account is and then from then on FormatCurrency will use the correct Symbol.
View 3 RepliesI am trying to pass an FTP file address with % symbols [URL] If I directly input the address: Req = CType(WebRequest.Create("ftp://.../EcoHydrology/Sample_Outputs/AA/A%23%23_AAA_AA_AA%23%23%23a_A%23%23_AAACC07.txt"), FtpWebRequest)
View 2 RepliesHow do I fix this error? I'm using asp.net Compilation Error.Description: Error compiling a resource required to service this request. Review your source file and modify it to fix this error.
Compiler Error Message: CS1519: Unexpected symbol `Dim' in class, struct, or interface member declaration
Source code:<%@ Import Namespace="System.Data.OleDb" %>
<script runat="server">
sub Page_Load
Dim dbconn As OleDbConnection
dbconn=New OleDbConnection("Provider=SQLOLEDB;
Data source='http://localhost';
[Code]...
I have a method that searches a database using the contents of a textbox. I don't want people to be able to type "%" and retrieve all of the info.
View 1 RepliesUsing .net To add a $ symbol for numbers I did Texbox1.Text.Format = "C"
How to add % symbol at the end of each integer to represent a string in textbox.
I'm trying to ensure that all characters which are not numeric, or alphabetic are converted to HTML code when submitted to my database.
[Code]...
This successfully converts anything to HTML, but now I need to put some condition in there so it only does it where I need it to. ie; on any character which will either screw up my database entry, or screw up formatting when returned back to the screen as HTML (this database content is for product data for a website).
So for simplicity, I guess I want to convert only charcters which are not A-Z alphabetic or 1-0 numeric.
I could use isNumeric, but not sure how to detect alphabetic characters.
I've been Googling and found something which looked like it would work, but the logic/filtering was wrong.
So I figured I'd ask here :D
Whats the best way to include the Currency Symbol, without affecting arithmetic operations for example. Lets say I have a Listview which has one column named "Cost" where ill be a Currency Value which needs to carry the symbol for example "BsF. 22,34" or "$. 22,34". Lets say I need to apply aritmetics with those values after whats the best way to store em or at least ignore the symbol when using arithmetic on them?
View 3 RepliesMy chemistry calculations program, written in Visual Studio 2008, VB.Net (Win XP), gives completely wrong results when a Comma is used as Decimal Symbol.The calculations are only correct with a Dot (.) as Decimal Symbol.How can I make the calculation results independent of the Decimal Symbol? (Dot or Comma)?(For example Excel calculates correctly with a Dot or Comma as Decimal Symbol)I have found an old thread adressing the same problem, but no simple and easy solution was given.
View 3 Replies