I have a problem with unicode character, as i create a database in SQL Server 2005. I want to query from a table that criteria fields are contain unicode character i.e NVARCHAR.
e.g: SELECT * FROM tblMyTable WHERE MyField='ភាសាខ្មែរ'. But when i did like this all rows that contain Unicode Character always display. it doesn't fit to my criteria
I have two textboxes (InputTextBox, OutputTextbox).In the InputTextBox, if I type "a" I need to display tamil letter "அ" in OutputTextBox.For the above requirements, I tried like below,
View 4 RepliesI am working on a sub that essentially needs to open a text file, and replace all instances of a certain character with a unicode character. I'm trying to do this by reading the original text file byte by byte, converting it to a character, and then either adding that character to a memory stream or writing the unicode character to the memory stream. Then I'm saving the memory stream to the original file.
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In my VB.NET application I compare words that are recorded using IPA, many of which have many diacritic marks. In one of the comparisons, I compare the words character by character. But when I iterate over the characters, the diacritic marks come out as separate characters (as I would expect since this is unicode)However, a u character is different than a u plus an accent for the purposes of this program and needs to be distinguished.
View 1 RepliesI'm trying to query old Access database tables and compare them with SQL Server tables.They often don't have primary keys, or they have extra fields that had some purpose in the nineties, etc., or the new tables have new fields, etc.I need to find records - based on a set of fields specified at runtime - that are in one table but not another.So, I do this kind of query all the time in SQL, when I'm comparing data in different tables:
dim fields_i_care_about as string = "field1, field2, field3"
'This kind of thing gets set by a caller, can be any number of fields, depends on the
'table
dim s as string= ""
[code]....
It tells me it can't convert a Boolean - Is there any way to do this without Linq expressions? They seem far more complex than what I'm trying to do here, and they take a lot of code, and also I can't seem to find examples of Expressions where we're comparing two fields in a subquery.Is there a simpler way? I know I could do the usual EXISTS query using JOIN or IN - in this case I don't need the query to be super fast or anything. And I don't need to use a DataTable or DataSet - I can put the data in some other kind of object.
how to execute this SQL Statement
Scenario:
Given Tables T_Data, T_AllDesc, T_System1, T_System2
Given Fields:
T_Data= f_id, f_Desc, f_CreationDate, f_CreationTime, f_System1, f_System2
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What exactly is Unicode character in simple to understand, no-technicalities languange? Can you give me examples? What is the opposite of unicode character(s) and example(s).
View 8 RepliesI want to insert a special character into a RichTextBox. The character is in a Medieval Latin font (Andron) which is installed on my machine.
When I open MS Word and select Andron as the font, then go to Insert Symbol, then scroll down till I find the symbol I want, I see that its Unicode value is A752, selecting it inserts it into Word OK.
Now, back to my VB2005 project: I have a RichTextBox on my form, and the Font is set to Andron. I have two buttons on the form. Behind the first button I have this simple
RichTextBox1.Text = RichTextBox1.Text.Insert(RichTextBox1.SelectionSta rt, "a")
Clicking this button simply inserts the letter 'a' at the insertion point, fine.
Behind the second button I have this
RichTextBox1.Text = RichTextBox1.Text.Insert(RichTextBox1.SelectionSta rt, ChrW(&HA752))
However, on clicking this button I get the ubiquitous square symbol, as if it cannot find that character, which is odd (to me) as the correct font is selected for the RTB, and that code is the correct code for the symbol I want.
Edit to add: I can now see that all characters up to Ascii (Decimal) 255 (which equates to Unicode 00FF) all display OK, but any value over that does not.
AM doing a letter frequency analyzer program just like this website[URL]... but i don't know the right algorithm. Of course simple looping should work if it where just english letters, but the trick is it should work with unicode letters like arabic ,chinese etc.
how do i do this? if i can get sample code in vb.net or php, or an algol,
I used the unicode character manipultation features in my code under VB.NET 2003. Will the code still work on Unicode characters that have been added to the Unicode standard since 2003? I am aware that there have been some characters added to the Unicode standard for Persian text since 2004.
View 9 RepliesHow to encode string and save using vb.net code? sound don't understand, right? let's say i want to save my string(contain unicode) to file like in NOTEPAD when you write unicode and save, you have to choose encoding = Unicode in order to see the same character when you open it later. I want to do this can any one tell me(i need code to encrypt string)?
View 1 RepliesI would need to update a record using inline SQL string, when I use the first SQL string I get the error "data type mismatch in criteria expresion" but when I remove the time fields and run the SQL string the code works
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Can I compare a char array with unicode Font file?I want to display in the richtextbox what are the characters are exits & not exists in that font file?
View 2 RepliesI have a TrueType font in my PC. And there are some unicode characters in it which I want to insert it into my RichtTextBox. The CharMap in WindowsXP shows the unicode character as U+00CC and to the right, it also displays the KeyStroke as Alt+0204So, how do I insert this unicode character in RichTextBox ? Also, if I'm going to distribute this small program along with this particular font, will this end system can easily display the unicode characters ? Or do I have to set any regional settings in that PC to
View 2 RepliesI need to create a function named isValid to validate some criteria, text length character content. have validated length but i need to validate at least one Uppercase letter and one number is used(minimum) i was thinking of using a loop to check each character individually. thats probablly where i go wrong i, i often convolute the simple and keep heading of track.
View 3 Repliesset the selection criteria using combobox, but there is a possibility to select "All Items" option. There are more than 2 combobox selection.
Code:
strSQL = "SELECT nama from GridView"
Dim da As New SqlDataAdapter(strSQL, oconnection)
Dim ds As New DataSet
[code].....
My project consists of a user interface designed in Visual Studio 2010 Express. I have it linked to an Access database. At this time, I have two text boxes that the user will enter a number. I want to be able to write a query that will take the first and second number and pull the information from the database that is equal to or greater than the user entered number
View 6 RepliesUpon entry into my database, frmLot opens. The form opens in datasheet view. It displays several fields to include one named WorkOrder. The user clicks in the cell named WorkOrder. In the On Click property, I store that variable and name it stWorkOrder. What I need to happen then is to pass this variable to the criteria field of a query named qryWorkOrder and have it run and display results.
View 1 RepliesI'm working on a project using SQL Server Express 2008 R2 and Visual Basic 2008.My table has 8 text fields, each using the data type VarChar(num) with the number(num) ranging from 5 to 50. There are also number fields and a boolean field in the table.When I try to insert or update the table in Visual Basic the program runs through to completion, but the VarChar fields only contain the first character. The other fields come out fine. If I create the record in SSMS the fields are not truncated.
View 13 RepliesI am making an OleDb.OleDbDataAdaptor object to fill a DataTable object. In the construction of OleDbDataAdaptor, I initialize it like this:
Dim adapter As New OleDb.OleDbDataAdapter(sql, myConnection)
where sql is the my query string like this:
Dim sql = "SELECT * FROM DBTable TC WHERE TC.Text=N'Criteria'"
I am using the preceding capital N because the field "Text" in table "DBTable" is supposed to be in unicode. And myConnection represents a connection to one of my mdb files, where the DBTable is defined.However, when I execute the adaptor.Fill(myDataTable), it fails and throws an exception: Syntax error (missing operator) in query expression 'TC.Text=N'Criteria''. Does anyone know what happened here? I learned that in order to proceed the unicode text, the N is necessary. Another question is, how can I make sure that the field in mdb file is indeed in unicode? Because I can only see that the field Data Type is "Text" and I am using Access 2003, so I can only assume that it is in unicode. In fact I am enabling the unicode compression for the field, and as you can see in the text "Criteria" where is no special characters anyway.
I have database with table called "Konzultacije" with field "Vrijeme" (Date/Time). I have datagridview (DGKonzultacije) with columns. Column (1) data format is set to date/time. I want to delete record from "Konzultacije" table depending on selected cell in datagridview but only I can get is error.
This is my code:
Dim iSql As String = "DELETE FROM Konzultacije WHERE Vrijeme = " & DGKonzultacije.CurrentRow.Cells(1).Value
conn.Open()
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If i add apostrophe like this:
Dim iSql As String = "DELETE FROM Konzultacije WHERE Vrijeme = '" & DGKonzultacije.CurrentRow.Cells(1).Value & "'"
error is raised: Data type mismatch in criteria expression.
I want to retrieve query from MS.Access database criteria is between some date range,but I get the following error when execute my reader:Syntax error in date in query expression 'D_ate BETWEEN # @DateFrom # AND # @DateTo #'.
Dim StrSQL As String
StrSQL = "Select * from Pla_Comp Where D_ate BETWEEN # @DateFrom # AND # @DateTo #"
myCommand = New OleDbCommand(strSQL, conn)
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I am trying to find a way to use a month calendar control as an object data source, such that when end user selects a given date, or a date range (1 week max), it will supply the date range criteria for an access query, and the results will wind up displaying in a data grid view below the month calendar. I am having a really hard time..
how to write the date criteria into the access query for something like this
I'm realy new to this VB & Db programming#..I have two tables, one has the Vendor details, the other has all past and current PO details for each Vendor.[code]This needs to be done befere the 'For Each objDataRow In objDataTable.Rows. As the Dataset values will also populate another check Boxlist for 3rd Party.[code]
View 7 Repliesi have a table named item_details.i have some field named item_id,item_name,quantity,supplier_name etc.i want to see all details as per the item_id given in a textbox.i also want to see details as per the item_name is given.i can use 2 forms to view this type of query..one for item_id..and other to view from item_name.but..i want to use tabcontrol..in 1 tab i want go give the item_name...and want to get the details.and other tab i want to give the item_id...and want to get the details....and whenever i gave wrong information.an error message will be shown.
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I am writing a little program that does the following:Allows the user to enter a id number.Then when the find button is clicked, we connect to the database and run a select statement for the id.I am trying to figure out how to get the first name, last name and birthdate into textboxes on my form.
I would like to have a way to display a messagebox if the resultset = 0 so as to tell the user no records found.Then if the information is correct I am going to have a button to update the information which is going to call a stored procedure I have in place to update the record.how to make the connection which I think I have working and then loading the individual fields into the appropriate textboxes.
This LINQ to SQL query From g In Db.Context.Current.Groups Select g.GroupID
generates this SQL:
SELECT [t0].[GroupID] FROM [dbo].[Groups] AS [t0]But this query From g In Db.Context.Current.Groups
Select g.GroupID, g.MemberCount
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I very much want to select only the fields I need. How can I persuade LINQ to SQL not to select all columns?
I would like to pass a whitespace character by using the System.Text.Encoding.ASCII.GetBytes(" "), and System.Text.Encoding.Unicode.GetBytes(" ") , where " " is the whitespace Character required. What do I need to type (" ") to get a whitespace character passed.?
View 6 RepliesI am trying to pass query string from one page to popup window as follow:
Dim popupScript As String = "window.open('cFinder.aspx?cName=" & c_TextBox.Text & "','', 'width=420,height=200,menubar=no,scrollbars=yes');"
If (Not Page.ClientScript.IsStartupScriptRegistered("popup")) Then
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I m trying to filter a sql db with many filter criteria which inert the user in textboxes .. i ve tryed this query
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