VS 2005 - Select Count Always Evaluate To False
May 25, 2011
My tables sectionName column has an existing value. I want to update its Adviser column but my select count always evaluate to false. I want to check if my table's SectionName column record matches the selected value of my CboSectionName. if there is a match then i'll check if such section has an adviser already. If there is an adviser already, then ask the user if he/she wants to change the adviser of that section. If he/she wants to change/update the adviser then update it else exit. however, if there is no adviser yet then assign an adviser to column adviser from cboAdviser. If no record yet in table's SectionName column then prompt the user that there is no section name yet, then exit. I have been debugging the code below for hours now but I can seem to locate why my sql count always resulted to false. [Code]
View 11 Replies
ADVERTISEMENT
Sep 8, 2011
I have this code and it evaluates to false instead of a string. All its doing is building a string.
[Code]...
View 1 Replies
Mar 29, 2010
I'm trying to use a select case statement to evaluate the value being passed from an array list...any suggegstions. I need to determine if the array is null or not, and setup my select case statement based on if the array is populated. See sample code below Code Sample selected As New ArrayList
Dim dvExisting as DataView
Dim grdExisting as DataGrid
For
i = 0 To dvExisting.Count - 1
If grdExisting.IsSelected(i) Then
[Code]...
View 3 Replies
Nov 3, 2009
Here is the code I am working with, everything works fine up until last line then i get evaluate exception unhandled "Cannot perform '=' operation on System.Int32 and System.String." My eyes are going blind trying to figure out whats wrong, if I understand correctly it cant count system string and REO is a string value.
The thing i have done this before ,count that is. I know you cant average strings and some other function but i have been able to count.
d Dim comm As New OleDb.OleDbCommand("Select * From " & Me.OpenFileDialog1.SafeFileName & " Where Status <> 'S'", con)
Dim dalist As New OleDbDataAdapter(comm)
Dim comm1 As New OleDbCommand("SELECT * FROM " & Me.OpenFileDialog1.SafeFileName & " Where Status
[CODE]...
View 14 Replies
Jun 14, 2010
Say if i have like this If a > -1 And MyArray(a)="hello" then End If If possible how can i change it so that iff a > -1 then check for second condition. Without using nested if's
View 2 Replies
Jul 16, 2010
I'm trying to get a simple count of rows meeting some criteria. The value returned does not coincide with the correct number of rows when running the same query in Management Studio (SQL 2005)
vb.net
Public Function RowsAffectedCount() As Integer
Dim result As Integer = 0
[code]....
'result' always returns 1, but I have 3 records meeting that criteria in the database. Been staring at the code for a couple hours now and can't figure it out... I just need to know if the Count of rows returned from a SELECT statement is greater than 1 (at least two records).
View 9 Replies
Aug 11, 2006
I have a VB 2005 WinForms Project which is giving what I think is a false error.On the Designer screen for the main form (which normally displays the form layout etc.) I get:One or more errors encountered while loading the designer. The errors are listed below. Some errors can be fixed by rebuilding your project, while others may require code changes.'. ctor' is not a valid identifier.
View 1 Replies
Mar 18, 2009
i have a checkbox bound to a column with datatype character to my database... the column uses values Y and N.also, just like to add that i have tried changing the column into character of 5 byte so that it can hold the values "True" and "False" when the property bound is the property Checked. this works okay but there are some columns that doesn't use True and False like in my statement above.is there a way that i can set my checkbox to checked when the column value it is bound to is Y and vice versa.. i noticed that in the checkbox inside a datagridview has the properties TrueValue and FalseValue but i dont see this anywhere in the checkbox not in the datagridview.
View 2 Replies
Apr 4, 2009
Is there any cause that this property's value isn't false by default?. When you work with threads, you always require to update user interface from the child thread, I think that may be false is not the default value because of its side effects, wich I don't know.
View 3 Replies
Jan 12, 2012
I want to do a SQL SELECT COUNT in VB .NET to an Access DB. I can get the code to work using a text fields and text criteria but if I use a date field and Date criteria it returns 0 when there are some 47 records that it should count.
Dim Results As String
Dim InvDT As String = Date.Today
InvDT = "#" & InvDT & "#"
Dim strCnn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=S:MainData.mdb" connection string to your DB'
[Code] .....
View 3 Replies
Feb 24, 2009
how do i add a count down (eg, 20secs) and unless the user clicks something, then "Yes" is automatically selected? [code]
View 3 Replies
Aug 21, 2010
I've tried to write a code which will count the orders for each person in my users table. This is what I have but it's not working. What is wrong?
vb.net
Dim command As New SqlClient.SqlCommand("SELECT *, COUNT(Orders.Username) FROM Users LEFT OUTER JOIN Orders ON Users.Username = Orders.IssuedBy ORDER BY Users.PersonName")
View 3 Replies
Apr 6, 2009
I am writing a program to analyze error logs from an existing application, and I want to consider only lines that have a Date/time stamp at the beginning of each line.( in the format "03/13/08 08:03:58") I am extracting this as a string and want to evaluate it to make sure it is a valid date so I am using "IsDate(Mid$(TextArray(i), 1, 18))". The problem is that IsDate evaluates False even when the string I am passing should be valid (eg. 03/13/08 08:36:59).
[Code]...
View 17 Replies
May 8, 2012
I need to work on my listview. Do you know how I can convert the strings of checked from true to enabled and from false to disabled?
[Code]...
View 2 Replies
Apr 21, 2009
I'm trying to access the Count Property on the array of rows returned by the datatables select method, this is after converting the Web Project to 3.5
View 2 Replies
Oct 19, 2011
i got a problem with coding in sql. The probleam is the sql coding which use i use cannot count total row in the table staff.Please correct my coding if i have mistake .Here is my coding... and also i got the answer is Total Register staff is: 1
public class employee
dim ra as integer
Private Sub btnupdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnupdate.Click
[Code]...
View 2 Replies
May 5, 2010
i have used this code, but i always get msgbox as 0.
vb
SqlStr = "SELECT Count(memberid) FROM members WHERE membername Like '*" & Me.TxtFind.Text & "*'"
Using Conn As New OleDb.OleDbConnection(My.Settings.DMSConnectionString)
[Code].....
View 9 Replies
Apr 15, 2009
i have a table name employee_log...and one of the column name is enroll_no...i just want to count the number of rows of that table ....and display that result ie integer value in textbox..... i used count function but i dun the syntax...
View 2 Replies
Mar 20, 2012
[code] In above code, the value of dgvColor.Rows.Count is zero. Not sure what i am missing
View 9 Replies
May 4, 2012
I am working on my listview as I want to count how many checkboxes that I have ticked and unticked on my listview. Please can you tell me how I could do this?
If you do know how I could do this in simple way, I would be very grateful if you could tell me how I could do this.
View 17 Replies
Jun 8, 2009
I know the datediff function can give the count of the number of days between two different dates, but how can I get the count of the number of business days - i.e. Monday - Friday - between two dates?
View 2 Replies
Jun 10, 2010
I currently have the below code to list all tables in a MS Access Database, what I would like to do is alos COUNT the TOTAL records within each table and display that info in a listview control.
how to get that info.
This is the code I am currently using to get the list of tables from the database:
Dim userTables As DataTable = Nothing
Dim i As Integer
Dim restrictions() As String = New String(3) {}
[Code]....
View 5 Replies
Feb 11, 2011
developing a small program that will count frequency of each Arabic letter that appears in the string
View 5 Replies
Jul 28, 2009
Dim myDate1 As DateTime = datetimepicker1.value
Dim myDate2 As DateTime = datetimepicker2.value
Dim myDateToCheck As DateTime = datetimepicker3.value
[Code]....
this is for a single date..but i have list of date ....and i want to check how many days fall from march 20 to apr 10 between jan 4 to apr5..
View 3 Replies
May 17, 2012
How can I count Total of column from datagridview and show results in textbox Using VB 2005!
View 1 Replies
Jul 19, 2010
I have a database with 1,000,000 records and a query like this:
select count(code) from table1
It works well on the local system but becomes very slow on the network. Other queries like select * from table execute quickly, but select count(code) from table1 is very slow. I can't change the database's structure. My database is Foxpro and I use VB.NET.
Edit: Should I write code like this?
dim ds as new dataset
dim da as new datadapter("select count(*) from table ", connection)
da.fill(ds,"tbl1")
Then how can I get select count(code) from table1 from the dataset? Or do I have to use LINQ?
Edit 2: I mean the comparison between select count(*) and select count(code).
View 2 Replies
Dec 7, 2011
I have Tried to convert "1" to integer using Tryparse it showed true but when I used it on "1.00" it is showing it as false, why?
View 1 Replies
Nov 2, 2010
I have added a column to a Datatable called CallsPerDay which is there to tell me how many telephone calls have been made on a particular day or days.Is there a datacolumn.expression which will allow me to Filter on the day, count the rows and then populate this added column with the result.
View 1 Replies
Jul 16, 2010
I have some reports that I use with the MS ReportViewer and I need to get a count of the physical pages (as opposed to logical page count) to use with a print dialog. I've implemented a workaround so the ReportViewer control displays the correct number of physical pages, but is there a way to get that value from the ReportViewer control? The only publicly accessible property gives the logical page count.
[Code]...
View 1 Replies
Sep 15, 2010
I have a datagridview control on a form that I'm trying to select programmatically. My problem is, it's selecting the row in the grid when I use
Datagridview1.rows(Index).selected = True
However there is a margin on the left side of the datagrid that only get's the focus (or the little triangle identifier) when I click the row with my mouse. How I can have this row fully selected using code. When I try to run another function of my form it's crashing because the datagridview is not fully selected.
View 10 Replies
