could someone help me with some simple coding methodology for doing database searches within the ExecuteReader function that will return results regardless of case?For example, if the variable to search for within the database is John Smith,I would want the search to be successful if john smith is the user-provided variable.
View 8 RepliesHow to write Case Sensitive Function In SQL Query?
View 3 RepliesPrivate Sub ok_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ok.Click
Dim con As New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=C:\Documents and Settings\Saurabh\My Documents\Versa Server 2008.mdb")
Dim cmd As OleDbCommand = New OleDbCommand("SELECT * FROM Login WHERE UserName = '" & UsernameTextbox.Text & "' AND PassWord = '" &
[code].....
' If the record can be queried, Pass verification and open another form.
If (sdr.Read() = True) Then
MessageBox.Show("The user is valid!")
Dim mainForm As New Form
[code].....
visual basic.net is case insensitive so it allows the coder to write without caring or remembering the casing of variables. it also relieves from the 'undeclared variable' errors if you use the variable in another case than the one used in declaration. The fact that its line termination is a line feed makes it even more readable unlike C# or c++ that need good care in the casing and contineous war with following up with the {}, matching them and figuring out which is for which.
my question is what are the advantages of c# over vb knowing that both get compiled to MSIL so there is almost no performance difference between the two languages?
I was wondering if there was a way to create a parameter for a method in VB.NET 2005, to select which case(upper, lower) to test for.For Example
Function Afunction1 (ByVal aString As String, ByVal case As ......) As Boolean
End Function
Where case is the paramter for the user to set as upper or lower.
I was debugging one of the applications I work on and came across an interesting issue. For those unfamiliar with VB.NET, variable names are case insensitive. Therefore,
Dim foo As Integer
FOO = 5
System.Console.WriteLine(foO)
[Code]....
Variable names in VB.NET are typically case insensitive. The GetProperty method on Type seems to be case sensitive when it comes to the property name. Is there a way to call this method "VB.NET style" and ignore case? Or am I SOL here and need to apply a C# mentality and worry about casing?
I'm trying to check a string, but it turns out to be case sensitive, how do i make a string not case sensitive??
This is what I got:
str001 = My.Computer.Registry.GetValue _
("HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services" & "\" & str2, "ImagePath", Nothing)
[Code]......
I have a project to read xml files. It comes from a web service. But it can come sometimes with different attributes.
The standart xml file is like this:
<xml ....>
<car carname="Opel">Opel
[code].....
My problem is that the username and password is NOT case sensitive. How do I do that?[code]
View 3 RepliesMay i know how to implement the case sensitive detection in VB for the login part, so if a user registers in "key" for his password and keys in "KEY" for his login, the system will actually kick him out.[code]...
View 5 RepliesI have the following code that verifies user id and password, which are retrieved from SQL Server, but I want the verification of the password to be case sensitive.
[Code]...
I just came across an interesting scenario. I have a class in C#:
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As C# is case sensitive, this will treat the two variables A and a as distinct. I want to inherit the above class in my VB code, which is not case sensitive. How will the VB code access the two distinct variables A and a?
i have to find a string in an array. i am using array.indexof method to get the index of matched item. now problem is that indexof method comparison is case sensitive and i cannot restrict user to provide case sensitive string.[code]
View 3 RepliesI've been using text.indexof() to see if a string is located inside another string, however is it it possible to do a case sensitive/insensitive search option? I've been looking around Google and not having much luck with it.
A huge bonus would be if it could count the number of occurrences inside the string!
I am working on a VB.Net application that needs to access a web service that I am nearly certain has a C# backend. At bare minimum, the backend is providing classes to me that are differentiated only by case, and within a number of those classes, there are properties and methods that are only differentiated by case.
VB.Net is case insensitive, and it sees a number of these items as being ambiguous.I've thought of a few ways of dealing with this, but I would like suggestions before I go down a road that is likely difficult.
Here are some ways I have considered going about it.Modifying the generated code for the wsdl. This has presented problems in responding as the xml output would no longer conform to the webservice requirements.I think there might be some attributes I could use to override this, but I'm not sure what they are yet. Even so, this web service gets frequent updates and I would hate to have to keep refixing the service every time I refreshed it.Creating a csharp wrapper project where I expose the underlying classes with different names. Primarily through inheritance. Although the big problem here has been the issue with properties and methods that are only differentiated by case as well.
I'm sure at some point I could get one or the other of these solutions working, but if anyone has any better suggestions that I'm not thinking of,
I've hit a small issue on a project of mine. I have a comboboxcolumn on a datagridview and the items list has the items ("enabled" "disabled") as the values (stored at design time). When my sql table gets the value "Enabled" or "ENABLED" stored somehow as it's value then I throw a dataerror.
I am trying to avoid this dataerror, I was told to modify the value during the cellformatting event however with my experience the dataerror fires before the formatting. What is the workaround to this behavior? As a textboxcell type the error is not present, it's all because of the case sensitivity of the "items" list on my comboboxcell
Is there anyway to use LIKE operator in VB.NET as case sensitive or insensitive during runtime? For example use a flag to do case sensitive or insensitive comparisons.Obviously this can be done by simple converting them into lower case and forcing application to Option Compare Binary but maybe there is a better way to do this?
View 1 RepliesI am creating a login form for an application, everything is ok but I have been asked to make the user name and password text boxes case sensitive, by which I mean if a user entered the following
User Name: vbwizzard
Password: youwish
a error message would be shown If the user entered
User Name: VbWizzard
Password: YouWish
The information would match what is in the database and the user would be granted access.I just need help with making the text boxes case sensitive, the rest I am ok with.
Possible Duplicate: Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive
I am using window xp and iis 5.1 to run the application.
error is occurred Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.
[Code]...
How do I create a Login Verification routine (Login Form) and make the password case sensitive?Please remember to mark the replies as answers if they help and unmark them if they provide no help.
View 3 Repliesvisual basic.net is case insensitive so it allows the coder to write without caring or remembering the casing of variables. it also relieves from the 'undeclared variable' errors if you use the variable in another case than the one used in declaration. The fact that its line termination is a line feed makes it even more readable unlike C# or c++ that need good care in the casing and contineous war with following up with the {}, matching them and figuring out which is for which.my question is what are the advantages of c# over vb knowing that both get compiled to MSIL so there is almost no performance difference between the two languages?
View 1 RepliesI am creating a search function which searches a database for keywords in a selected field in FilmTable (name of table to be searched)
This is the SQL I am using:
CODE:
It is saying there is an error in the FROM syntax
I'm building a listview search feature in my app. (See the code below). It works really well, except if you search "T" then the code removes all items, if you search "t" then it removes every item except for those starting with "t". Is there any way to make a 'like' statement, or use some kind of wildcard to make the statement not case sensitive?
For Each itm As ListViewItem In ListView2.Items
If itm.Text Like TextBox1.Text & "*" Or itm.SubItems.Item(1).Text Like TextBox1.Text & "*" Then
Else
[code].....
xplain to me or give me an example of using a select case in a shared function
View 2 RepliesWhat's the best way to handle this situation: I have this generic function
Function FieldValue(Of T)(row As DataRow,fieldName As String) As T
Return If(row.IsNull(fieldName),Nothing,CType(row(fieldName),T))
End Function
In the special case where the field value is null and T is String, I want to return String.Empty instead of Nothing.
I am having problums with Ignore Case in searching. I got a checked listview and a listbox, it searches and fines just the exact word.
For i As Integer = 0 To (Me.Special_Search_Histroy_CheckedListview.CheckedItems.Count - 1)
'Dim itemString As String = Me.Load_Search_name_Listbox.Items(item).ToString
Dim strr As String = (Me.Special_Search_TextBox.Text)
Dim path As String = (Me.Special_Search_Histroy_CheckedListview.CheckedItems.Item(i).SubItems(0).Text)
Dim readText() As String = File.ReadAllLines(path.ToString)
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If I use code such as NewName = StrConv(OrigName, vbProperCase) to convert names to proper case, i.e. with initial capitals, I get unwanted results with Irish names like the following:
O'neill instead of O'Neill
O'grady instead of O'Grady
[code].....
I wrote my own database handling code (actually, I write T4 text templating files that generate my database code for me) and part of it takes care of converting values from a database (as Objects) to the desired types.
I have been using this generic function successfully:
vb.net
Public Overridable Function ConvertType(Of T)(value As Object) As T
Try
Return If(value IsNot Nothing AndAlso value <> DBNull.Value, DirectCast(value, T), Nothing)
[Code]....
Simple enough, but it doesn't work... The return type of the function is (and must be) T, so I cannot return a Boolean because a Boolean cannot be converted to T!
Well... It can in this case, because I specifically check that T is Boolean, but the compiler doesn't know this so it doesn't allow me to return a Boolean. I cannot cast the boolean to T either.
I wrote my own database handling code (actually, I write T4 text templating files that generate my database code for me) and part of it takes care of converting values from a database (as Objects) to the desired types. I have been using this generic function successfully:
vb.net
Public Overridable Function ConvertType(Of T)(value As Object) As T
Try
[code].....
i have a program using a select case to convert letters to special charaters. My question is how can I get the code to read upper and lower case letters without having to put the upper case letters in my select case statement. Example: Part of my code is
[Code]...