I have 2 public variables that I declared in form1 of an application. I am trying to call that variable in form2 and then pass that variable in a sql query.
If I declare
Public Class Form1
Public payPeriodStartDate, payPeriodEndDate As Date
[code].....
I have a public variable that I declared in form1 of an application. I am trying to call that variable in form2 and then pass that variable in a sql query. If I declare:
Public Class Form1
Public payPeriodStartDate, payPeriodEndDate As Date
How then to I declare that variable in form2 and how to I pass it to my sql query.
Here is the code I have for form1: [Code]
and when I debug this form, no data will appear. I'm sure that it's something wrong with how I'm either calling the variable in form2 or in the query. Can anyone offer any assistance on this?
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 have 2 public variables that I declared in form1 of an application. I am trying to call that variable in form2 and then pass that variable in a sql query. [code]...
View 14 RepliesI have two forms and I'm trying to pass a declared variable from form1 to form2 and then pass that variable in a sql query that I have in a dataset that is bound to my form. I know that my query works but it's not producing any data. I have debugged my form and can see the data being passed in the variables elsewhere on the page but I'm not sure of the syntax within the query.
[Code]...
I create a hyperlink that when clicks generates a url like so:
[URL]
And I read it into a text box like so:
Me.txtTags.Text = CType(Request.QueryString("Tag"), String)
But the result of this is that the textbox txtTags will only contain C and doesnt have the ++. I tried [URL]and the # is missing as well. But if I look at the address bar these values are there....
I have a Form1 with a query, and I want to display the results in a DataGridView in Form2, like this:
Form1:
VB
Dim Db As New DataClasses1DataContext
Dim Qry = From country In Db.Countries
Select country
[Code]....
I'm trying to write my very first "serious" program using a mysql database. I use the mysql connecter dll to connect with my database. I have a subject and a visit table. I can select a subject and I can get all the visits for all subjects in a list box with:
[Code]...
I have a LINQ query:
VB
Dim Db = New MyDataContext
Dim Qry = From cust in Db.Customers
Select cust.ID, cust.Name
And I want to pass it to a function to filter it, like this:
VB
FilterAnyQuery(Qry, cust.ID) ' WHERE "cust.ID" CAN BE ANY FIELD
The Sub should be of this kind:
VB
Sub FilterAnyQuery(ByVal AnyQry As iQueryable, AnyField as ???)
AnyQry = AnyQry.Where(AnyField = "somevalue")
End Sub
How can I pass "AnyField" to the Sub and make the LINQ "Where" clause work?
Public Shared Function getrealrequests(ByVal itemname1 As String) As ArrayList
Dim sqlStr As String = "data source=localhost;initial catalog=Customers;integrated security = true"
Dim dbRecords As ArrayList = New ArrayList
Dim dbConn As SqlConnection = New SqlConnection(sqlStr)
[Code] .....
I'm trying to pass the value of 'itemname1' to the select query. What's the correct syntax to get it to work?
I am using following code to connect to my database.
Dim conStr As String = "Data Source=.SQLEXPRESS; ![enter image description here][1]
AttachDbFilename=|DataDirectory|dbTest.mdf;
Integrated Security=True;
User Instance=True"
Dim sqlQry As String = "SELECT * FROM [tblTest] WHERE ([Name] = @Name)"
Dim dAdt As New SqlDataAdapter(sqlQry, conStr)
Dim dSet As New DataSet()
Then filling adapter with
dAdt.Fill(dSet, "tblTest")
And then I can use the data the way I want.
My question is: How to pass the value of parameter that user will give through a text box on my webform.
Dim sqlQry As String = "SELECT * FROM [tblTest] <b>WHERE ([Name] = @Name)
I mean how to pass the parameter value to my query?
Do you just need to format the date? Such as msgbox(New Date(2010, 1, 1).ToString("yyyy-MM"))
Or do you need a hashtable:
[Code]...
I want to pass a date as parameter in vb to query the data from the table.If I hardcore the value in the query it works fine for me, but if I pass it as parameter to query, like I am getting the data from edit text and trying to send that as a parameter, this does not work.
SELECT *
FROM VehicleAnalogParamDownload2
WHERE Vapd2_Date between 'From_date.Text' And 'To_Date.Text'
I am using following code and trying to get data by given parameters. I donot know how to pass the parameter value to my query.
[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:
Module Module1
Public Function LookUpNow(ByVal userInput As String) As String
LookUpNow = userInput
Return userInput
[code]....
I want to pass a comma delemited list of values as a parameter to a query I'm building using the designer in Visual Studio 2008 based on some strongly typed DAL tutorials I was going through. The query is going against a DB2 database. Here's what I want to do:
select * from prices where customer in(?)
It works fine win I pass in 123456 as ?But fails when I pass in '123456' (it is a char field so I don't know why this doesn't work; it must be adding these behind the scenes) or 123456, 123457 or '123456', '123457' I'm adding this page to a portal where all the data access is being done based on the DAL designer model with a BLL that calls it so I wanted to do it this way for consistency.
In one function I have the variable: dim StrProjectNumber = UCase("23-EXP-16284")
However in another form I want to use that same variable in a SQL query, and when I try it says the variable is not declared. Do I have to make a global variable or is there a way around it? If so, how would I go about declaring a global variable?
The following is a screenshot of the problem: What can I do?
View 3 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
[code].....
Here is the code:
Function getData(ByVal id As String)
Dim reader As SqlClient.SqlDataReader
Dim statement As String
[code].....
When Creating a query using the sear Criteria Builder . I keep getting the error : "The schema returned by the new query differs from the base query" what does that mean and how do i avoid this problem in future
View 2 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]....
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
i should say hi experts :D . Help me with this pretty code :)
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
I have to join two main tables, and I need to filter the results by elements in an ASP.NET web form. These filters are created on the fly so I have to use a lot of where extensions to filter the query. I want to execute the query with as optimized SQL as possible.
I am first doing a simple join between TW_Sites and TW_Investigators. Then there are two sub-tables that are involved. TW_InvestigatorToArea and TW_InvestigatorToDisease. While most of the where clauses are working fine, I have found a performance issue that won't be an issue right now, but will be an issue as the table gets bigger.
The arrays DiseaseCategories and DiseaseAreas would be the results of a CheckBoxList result.
Protected Sub LoadResults()
'Get Dictionary of Filters
Dim FilterDictionary As OrderedDictionary = Session.Item("InvestigatorFilterDictionary")
' Initialize LinqToSql
[code]....
I created a RDCL in the designer. I would like the User to Determine what is shown in the Report. How can I change the query at runtime? (ex. changing the customer Name)
This is the query that I have in the properties:
SELECT [Date], Address, Customer, Orders
FROM Report_qry
WHERE (Customer= 'JohnDoe')
how to take a query that returns a single row of data and load that data into textbox controls.I know about ExecuteScalar but it is only good for a single column of data from the query.
View 2 RepliesI've got confused at the moment.I've got one database to developed for MLM (Multi level marketing) company.so, there's one Members database.. each member have unique ID called membercode.. and all members can members under them.. can make 2 members down to 1 member.. all members are added in same table named "tbMembers" and for each member there's a "parentID" where I add member's membercode under whome that member is?.. right?
Now what's the matter is .. I want a SQL Query which can go under and under.. like 'John Doe' having two members under him named 'Suzan' and 'Ellie' and 'Suzan' is also having 2 members under her.. and same for Ellie. and for example.. 'John Doe' having about 300 members in his down line? All members are making transactions.. like they purchase product and Invoices are being generated (invoices tables have 'memberID'). Now the query is how to generate query which can calculate John Doe's Downline's TurnOver from invoices table's 'totalAmount' field's SUM?
I'm using Asp.net 2.0 (VB.net) and use SQL Server 2005 Express.
I have created a parameterized query in my tableadapter. Here is the SQL:
SELECT CalcinerID, Comments, CorrectiveActions, CrucibleOxideWt, CrucibleWeight, DCPressure, DCTemperature,
Date, DischargePressure, FeedPressure, FiredCrucibleOxideWt, GmSampleWt, LIMSNumber, LotNumber, MaterialType,
OperatorID, QualLabOperator, QualLabTimeStamp, RecordID, ToteBinNumber [code]....
When I use the Execute Query button in the Tableadapter Query Builder, the query works fine; I get all the rows I expect. However, when I run this in my code, the query behaves like an equality statement (i.e. Lotnumber = @Lotnumber) rather than a LIKE statement (Lotnumber LIKE '%' + @Lotnumber + '%').Here is the code that is not behaving correctly. Note that I have a textbox, LotSearchTextbox, where I enter the portion of the Lotnumber that I want to use as the filter. I also have a button, LotSearchButton:
Private Sub LotSearchButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LotSearchButton.Click
Try
Dim SomeNumber As Integer = Me.LotCalcinerO2TableAdapter.FillByLotNumber(Me.CalcinerDBDataSet.LotCalcinerO2,[code].....
why the query works in the Query Builder but not in the code?
I have a data table that looks like this:
USERNAME ICOUNT IAVERAGE DATE_LOGGED
LAGX01 1245 1245 05-07-2012
LAGX02 2211 1422 05-07-2012
LAGX03 1698 1112 05-07-2012
LAGX04 4598 1555 05-07-2012
LAGX05 2589 3245 05-07-2012
LAGX06 3321 1155 05-07-2012
LAGX07 3698 3458 05-07-2012
LAGX08 2589 4587 05-07-2012
LAGX09 1598 1142 05-07-2012
LAGX10 3156 1987 05-07-2012
LAGX11 5547 2011 05-07-2012
LAGX12 9456 3459 05-07-2012
Now, I want to execute a sql query that will display the top 5 based on average, so i did this:
SELECT DISTINCT USERNAME,IAVERAGE FROM myTable WHERE IAVERAGE > 0 AND DATE_LOGGED='05-07-2012' ORDER BY IAVERAGE LIMIT 0,5 and the result is:
USERNAME ICOUNT IAVERAGE DATE_LOGGED
LAGX03 1698 1112 05-07-2012
LAGX09 1598 1142 05-07-2012
LAGX06 3321 1155 05-07-2012
LAGX01 1245 1245 05-07-2012
LAGX02 2211 1422 05-07-2012
Now, I want to numberize my query result, so it will look like this:
RANK USERNAME ICOUNT IAVERAGE DATE_LOGGED
1 LAGX03 1698 1112 05-07-2012
2 LAGX09 1598 1142 05-07-2012
3 LAGX06 3321 1155 05-07-2012
4 LAGX01 1245 1245 05-07-2012
5 LAGX02 2211 1422 05-07-2012