Select Statement That Uses Variable Result To Textbox
Jul 31, 2010
I'm relatively new to VB. I want to perform a SELECT statement that uses a variable to return a value, example;
mysql> SELECT room_description FROM room_descriptions WHERE current_room = 'someVariable';
And display the result in a TextBox i.e. TextBox.text = someVariable.
So how do I perform a query from VB that passes a variable? How do I assign the result to a variable?
View 3 Replies
ADVERTISEMENT
Nov 25, 2009
In my .NET application I have to get results from a MS Access database. I would like to add error checking to make sure a row was returned from my SELECT statement.
View 1 Replies
Apr 8, 2012
I have a table which contains a list of products for a company. They input data about how much stock they have and also the level at which they want to be reminded that they need to order new stock.
[Code]...
I want to list all the true results in a form which the user is then able to navigate through. What would be the best way to go about doing this?
View 2 Replies
Aug 16, 2011
I have a simple vb script which extracts some data from our accounting software to a text file. It works fine when I do not use a variable in my select statment as follows:
xselect = "SELECT SourceJournal,JournalRegisterNo, PostingDate, PostingComment,UserCreatedKey
FROM GL_DetailPosting
[Code].....
View 4 Replies
Mar 30, 2009
How do I fill the variable in my SELECT statement?
Private Sub TabPage2_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles TabPage2.Enter
strTenantPin = tbxTenInfo_Pin.Text
[Code].....
View 4 Replies
Aug 23, 2011
i got a probleam with my selection in list box. If i to select item in the list box then the result will display in textbox. I got an error England is not member list of ListBoxGreeting Here is my code and picture on my application. I am using visual studio 2005
Public Class Form1
Private Sub ListBoxGreeting_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBoxGreeting.SelectedIndexChanged
[Code]....
View 3 Replies
Jun 20, 2011
I am using OleDb, trying to do this:
Dim d as Date = DateSerial(Year(rptDate), Month(rptDate), 1 - 1)
Dim conn as OleDbConnection = new OleDbConnection(connStr)
Dim cm as OleDbCommand = new OleDbCommand()
[code]....
I know that d is the same date as the one in SQL server, specifically 3/31/2011 12:00:00 AM.
View 4 Replies
Nov 21, 2011
How do I populate a VB.NET textbox using an SQL SELECT statement?
View 1 Replies
Nov 14, 2011
I have a textbox and a datagrid. I am trying to enter a last name into the textbox and have that return the entire record from that last name into the datagrid from an oracle database. The code below currently returns all records in the table and is not searching by the last name. Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myString As String
[code].....
View 2 Replies
Sep 3, 2010
I am trying to retrieve information from one row that has four columns(name,company,address,phone) so that once it is displayed in 4 different textboxes, I can transfer to a word document.
View 2 Replies
Jun 24, 2011
I have the following SQL:
[Code]...
I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
View 1 Replies
Jun 23, 2010
A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
View 7 Replies
Jan 10, 2011
Say that i have the following code that parse about 20k records from the DB.
Code #1
vb.net While reader.Read()
list.Add(If(Integer.TryParse(reader(0).ToString, 0), Integer.Parse(reader(0).ToString), 0))
End While
And then another code which does the very same thing but it seems to be a little cleaner.
Code #2
vb.net While reader.Read()
Dim storeowner As Integer = 0
Integer.TryParse(reader(0).ToString, storeowner)
list.Add(storeowner)
End While
This is what i am confused about; does the compiler creates a new variable automatically when i use the if statement without strictly declared variable? What approach is better in sense of performance?
View 2 Replies
Nov 30, 2011
I am doing a sql statement to get all the data that starts with "A" in the database.
[Code]...
View 1 Replies
Jun 16, 2011
I have something that I want to do and what looks very simple, but I cannot get it to work. I want to build a function that gets as input a xdocument and some other strings. It should have a return that contains a filtered part of the xdocument in a way that I can use it as input for a new Linq function. This is what I mean:
Private Function fncGetFilteredDecendantsOfNode(ByVal xdocDoc As XDocument, _
[Code]...
View 2 Replies
Aug 16, 2010
I want to execute an SQL statement and put the result in to a data table.
Sub getvehicletypes()
Dim dt As New DataTable
Dim intLine As Integer = 0
[Code].....
Once Ive got it in a dataset I need to work out how to search the dataset for a code and return the corresponding description and vice versa
View 10 Replies
Mar 23, 2009
I have a requirement where I have to add items into a List(Of T) (let's call it Target) from an IEnumerable(Of T) (let's call it Source) using Target.AddRange() in VB.NET.
Target.AddRange(Source.TakeWhie(Function(X, Index) ?))
The ? part is a tricky condition that is something like: As long as the as yet unenumerated count is not equal to what is needed to fill the list to the minimum required then randomly decide if the current item should be taken, otherwise take the item.Somethig like...
Source.Count() - Index = _minimum_required - _curr_count_of_items_taken _
OrElse GetRandomNumberBetween1And100() <= _probability_this_item_is_taken
' _minimum_required and _probability_this_item_is_taken are constants
The confounding part is that _curr_count_of_items_taken needs to be incremented each time the TakeWhile statement is satisfied. How would I go about doing that? I'm also open to a solution that uses any other LINQ methods (Aggregate, Where, etc.) instead of TakeWhile.If all else fails then I will go back to using a good old for-loop =)
View 2 Replies
Jul 10, 2011
The sql scripts below gives me the correct number of students queried but when I used it in VB I am getting less number of students.[code]...
View 17 Replies
Nov 9, 2009
[code] if some one let me know the way that I can display the select result
View 1 Replies
Mar 23, 2012
have a table with following fields
Emp_id varchar(50)
Emp_Name varchar(50)
Emp_surname varchar(50)
[code].....
View 1 Replies
Apr 2, 2009
I need to use a SELECT statement to select all data under a column name (like all employee names) and then to add the values to a listbox.
I usderstand that the select statement must be:
"SELECT * FROM EmployeeTable WHERE EmployeeNames LIKE *" (at least I think)
but then what? combobox1.fill ("EmployeesTable") ?
View 9 Replies
Jul 4, 2011
I used the following code to select unique values from the database [code]And it does not retrieve the unique values, it remains the same. But if I use only SELECT DISTINCT Author FROM tblBook it works fine.
View 3 Replies
May 8, 2011
trying to set the result of dropdownlist to a variable but having great troubles.
Sub OutageSource(ByVal sender As Object, ByVal e As EventArgs) Handles Year.SelectedIndexChanged
Dim year As Integer
[code].....
View 2 Replies
Apr 24, 2011
How do I assign the query result to a variable.I am using SQLlite. Below is the code for retrieving password from the User Table. I need to compare the given password and the given password.
Dim i As String
Dim p As String
i = txtUserID.Text
[code].....
View 1 Replies
May 21, 2010
I'm looking to store the result of SQL count function in a variable, i've tried numerous ways but haven't managed to get it to work?
View 3 Replies
Oct 11, 2011
Im trying to get the result of an SQL statement and store it in an integer variable "count" in vb so it can then be displayed on my website showing the user the total Open records:SELECT COUNT (recordID) FROM [tbl_Records] WHERE [Status] = 'Open'
View 2 Replies
May 17, 2012
I'm just wondering if it's possibe to get the results from a query and then assign the results to a variable. So I will run a query which will return the names of the tables stored in the database, then I want them to be stored in a variable. So it would be something along the lines of:
Dim strFrom AS String = "FROM "
strQuery = "SELECT * FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'Database1'"
con.Open()
[Code]....
View 7 Replies
Oct 6, 2011
I'm using VB.NET with the MySQLConnector, I have an ID column with differents values, i.e:
101
102
201
202
203
302
304
305
306
I want to select all the values that start with "3" and then, select the MAX of them, in this case, "306"
View 1 Replies
Apr 29, 2011
Private Sub cmdLogin_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles cmdLogin.Click
Dim conn As MySqlConnection
[Code]....
i supposed it can show the result of count(ID), in this instant it is the number of records count on the OUTBOX so the debug.writeline is RESULT, instead of now it is showing "SELECT COUNT(ID) FROM OUTBOX"
View 2 Replies
Nov 30, 2011
For example
month1 month2 month3 total
district1 5 2 9 16
district2 1 0 11 12
total 260 150 140 550
Here final total is not much important. But at least I need to show count per district per month.
SELECT Districts_mst.district_name,COUNT(Payments.PaymentId)users ,DATEPART(M,payments.saveon)Month
FROM Payments
JOIN Subsciber ON Payments.SubId =Subsciber.SubId
JOIN districts_mst ON districts_mst.district_id = Subsciber.District
where lang_id=1
group by district_name, DATEPART(M,payments.saveon)
Which give me list like.....
district_name users Month
dist0 1 1
dist1 1 11
dist2 3 11
dist3 1 11
dist4 3 11
dist5 1 12
dist6 1 12
View 1 Replies