I am trying to use LINQTOSQL and I am new using it so could you please let me know how to take data once you write a query into an object.I got my query here which runs with no error and the count shows correctly being one when I login
Dim Data As New Data
Dim DIMLOGIN = From a In Data.Members Where a.EMAIL = LOGINEMAIL.Text AndAlso a.PASSWORD = LOGINPASSWORD.Password Select a.ID
how to access the 'ID' selected by this query?
i am having a query in access 07 which uses 2 functions (PUBLIC function)how can i run it from the front end (vb.net)
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MsgBox(cmd) End If End While '***** END ***** reader.Close() con.Close() MsgBox("The Connection to the Database is now Closed") End Sub End Class
with vb.net 2008 express + access 2003;how can i query Msysobject table because presently i am getting error message as " no read permission on system objects"/i want to query it because just to ensure that whether a table by name "tableX:" exists or not
View 2 Repliesi have to update the values in my database some of them are integer, some string and some date (as you can infer from the formatting)
i am using the following query:
UPDATE PatientProfile SET HospitalRegNo=" + hregno + ", PatientName='" + pname + "', PatientAge=" + page + ", PatientSex='" + psex + "', Address='" + add + "', ContactNo='" + cno + "', AdmitDate=#" + adat + "#, OperDate=#" + odat + "#, DischargeDate=#" + ddat + "# WHERE PatientNo=" + pno + ""
but its not working... i think there's a problem in formatting the date type variables
I am trying to call a SELECT query (with parameters) in Access from VB.Net 2008. I am able to call queries without parameters using the code below. The problems are (1) how to apply the parameters to procName and (2) how to get a dataset returned. I have looked around the net for hours and have found some examples. However, they are all for ms access action (update, delete, etc) queries using ExecuteNonQuery which does not return a dataset.
[Code]...
i am relatively new to VB and i am working on a Visual Basic Program to build a Student Record Book where all the information is stored to an Access 2007 database. If the user is an administrator they will be able to add a new student, update delete etc. I managed to implement INSERT/DELETE/UPDATE functions and also a search button and they all appear to be working fine.
View 4 RepliesIn Access, when you build a new query, you can add tables to the view, which is then represented by individual windows that are somehow embedded/constrained to the upper portion of the query designer. I know then typically, windows are free floating anywhere on the screen, but somehow they manage to keep it confined to a certain container area. It also appears that the windows never get a real "focus" as the title bar is always a faded shade of blue, yet, you can still click on them and move them around.
View 3 RepliesI am connecting to an Access database and using a parameter query with the LIKE operator to return all rows that match query. The string to search for is taken from a Textbox
sql =
"Select * FROM Allview WHERE Info Like" &
"*" &
CStr(TextBox1.Text) &
"*"
The query does not return any data in vb, but when run from access with same string, there is data returned.The connection to the database is done correctly, as I am able to return data with various other queries.
Partial code :
Dim
con As
New OleDb.OleDbConnection[code]....
I am trying to run a query an Access db from VB. The general query which I want to run is
SELECT * FROM Patient WHERE Patient.PatientID = ?
or SELECT * FROM Patient WHERE Patient.PatientLname = ?
I tried using an input box which captured the user input and pass that variable to the query, but that failed. Then I read about writing a function and using that, however, I keep getting an error which says Function not defined, but when stepping through the code, it seems to work. Here is my function: [Code]
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)
[code]....
I have a DropDownList that pulls values from a table in sql server. I want the dropdownlist to populate the list of values based on a selection by the user but also display the contents of the rest of my table in case they need to change something. For ex:
ddl1 has values of: 1, 2, 3, 4, 5 user selects 5, so the value displayed in ddl2 is five, but if you exand the ddl2 you will also see the values of one, two, three, four...
This is the code in my load event...
If Not IsPostBack Then
result = dal.dbConnect(DAL.dbType.SqlServer, ConfigurationManager.AppSetting("SQLServerConnection"))
[Code]....
I am having trouble using the values that were selected from the dropdown list. How would you reccommend passing the selected values from the view?Ideally, we want to use the selected dropdown values to determine a query.
View 1 RepliesCould not find this through Google or in SO questions.I have a checkbox listbox on my form. I want to filter my List by the list of selected Ids from that listbox that are checked, in SQL I would have done this like "Where TypeId In (1, 4, 5, 7)"... how do I do that in LINQ?
I feel like I am missing a really obvious answer, but cannot get it.
For argument sake... here is the what I have for sample data:
In Colors (List<of currentColors>)
ID, Name, TypeId
1, Red, 1
2, Blue, 1
3, Green, 2
4, Pink, 3
Selected Types 2 and 3 in CheckboxList: filteredColors
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I have a combobox with whose contents get populated via code. Works ok. But When I select something in the list and hit 'OK' it always returns as: nothing, "", or -1 (tried with .selectedValue, .SelectedText, and .SelectedIndex respectively)
Question is, How do you access the text in a ComboBox's selected Value??
I have a range of serial numbers in groups like below
ID NAME START Range ENDRange
1 eric 12340 12349
2 carl 56780 56788
Can I get VB 2010 sql query for access database that when I enter say 12342 in the textbox , it should return below in my datagridview since it falls in that range
ID NAME STARTRange ENDRange
1 eric 12340 12349
I have a query like this which runs on access
SELECT UserName FROM details
GROUP BY UserName
HAVING (SUM(NumberOfPages) > 10)
is working fine but when i put "TotalPageCount = SUM(NumberOfPages) "
next to UserName like this
[Code]...
i have set selection mode to multiExtended in vb.netSo i am able to select multiple elements but how to access those selected values/indices using SelectedItems property?
View 2 Repliesis d query rite ?q = "update FIRSTBBA WHERE FBBANAME<>"" ORDER BY FBBANAME"Need to update a table in ascending order
View 2 Repliesi want to know that how to use sound like query in VB.net with access. [code]
View 1 RepliesI have an access database and have a simple query in which i have 1 parameter.I want to run this query in vb.net and display the results in a datagrid or anything but in vb.net. I'm able to run the query but wht should i do to display the results of the query.the code i m using now is:
[Code]...
s = "update Color set Color='" & ListView1.Items(y).SubItems(5).Text & "' where ID='" & CInt(ListView1.Items(y).SubItems(1).Text) & "' "
View 1 RepliesI'm connecting to a MS Access DB using ADO.NET.
edit: i'm using VS 2010 I want to perform an SQL query based on certain criteria using the following string:
SQL = "Select * from tblTransactions " & _
" WHERE holding_PM_code='" & cbPMCode.Text & "'" & _
" AND transaction_status='Active'" & _
[Code]...
Should I pass a parameter in the query or shouldn't this suffice? edit2: i've checked the SQL and it does show the correct date format to search for (ie, dd/MM/yyyy)... but when I hover the mouse cursor over over 'dtiAsAtDate.Value' it comes up as '#mm/dd/yyyy#'.
I'm trying to create a Pass-Through Query in an MS Access database using VB 2008.In VB the statement below creates an error that says the property is Ready Only.In MS Access the code works fine.(My complete MS Access VBA subroutine is below.)Is there any other way to create a Pass-Through Query in an MS Access database or am I just doing something wrong?[code]
View 5 Replieshow i can run a access query that uses columnhistory in the sql, from .net
i set up a oledb connection, and i can run other querys but not one with this function in it. says can find function.
i have a database in access 2003 and i submit a query to a specific table. The fields of this specific table (STOCK_PRICES1) :
DATE --> type date (d:M:yyyy)
CODE --> type text
OPEN --> type single
HIGH --> type single
LOW --> type single
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i receive an error. Why? Conflicts between access 2003 and vb.net 2010? SQL Server is better?And another question. My Regional settings regarding the date is d/M/yyyy but in my vb.net example, the @date1, @date2 parameters accept M/d/yyyy dates. Is there a way to define into the parameters the d/M/yyyy specification?
I'm attempting to query an Access database using a search button from a textbox and insert the results into a listbox. Here's the code I have so far:
[Code]...
The problem I'm having is it's returning the both InstName and the StuName multiple times in the listbox. I'm guessing it's because I'm doing the items.add twice? I was trying to use "[oledbcommand variable name].parameters.addwithvalue" but I couldn't figure out how to do it with a "like" function.
I have this app that suppose to read images from folders and display them. What I'm trying to do now is to use the file names and use them to query the database. [code]...
View 4 RepliesI am having a problem with the project I am working on. The project will have more than one query; however, I cannot get the simple one to work yet. I have a form with two text boxes and a button. I also have an Access database that I want to be able to connect and query to.
The database will have fields such as student name, address, test1 and test2. I want the form to allow a user to put in scores for test1 and test2 in TextBox1 and TextBox2, then query the database to say
[code]...
i need to write query into textbox but i get error message"Syntax error in DELETE statement."
'Define the connectors
Dim oConn As System.Data.OleDb.OleDbConnection
Dim oComm As OleDbCommand
[code].....