I have this records in the table:
username, password, rights, allowance
admin, asdf, admin, 20
john, qwer, user, 10
peter, zxcv, user, 10
I want to select one record at a time
I used:
for i as integer = 1 to sqliteDataReader.FieldCount
dim ss as string = "select * from xtable where recno()=" & Ctr(i)
...
Next
But it doesn't get 1 record at a time.
I am trying to retrieve a password from an SQLite database. The id of the row the password is in is 1. I want to assignt his password to a variable called actualpass.[code]
View 1 RepliesI have a sqlite table with following fields:
Langauge level hours
German 2 50
French 3 40
English 1 60
[code]....
I want to loop through the records based on language and other conditions and then pass the current selected record to a different function.So I have the following mixture of actual code and psudo code. I need help with converting the psudo code to actual code, please. I am finding it difficult to do so.
Here is what I have:
Private sub mainp()
Dim oslcConnection As New SQLite.SQLiteConnection
Dim oslcCommand As SQLite.SQLiteCommand
Dim langs() As String = {"German", "French", "English"}
[code]....
I have a form which has controls binded to the dataset. When i load the form the first record from db gets populated. How do i select a particular record?[code]For example i want to select the record where slno=34. How do i do this?LuxCoder
View 3 RepliesMy code is: But I want to use like operator.
Sub Find2
Dim foundpos = bs.Find("myid", txtSearch.Text)
If foundpos > -1 Then'if record is found
bs.Position = foundpos ' setting grid current itemElse
MsgBox("not found")
[Code] .....
I have a table and I need to select the record based on an Id. I only want to return the record that has the Max(Date) on a date field. How do I do that?
In SQL Server I use this
SELECT * FROM dch
WHERE EffectiveDate = (SELECT MAX(EffectiveDate) FROM dch
WHERE ID = 99) AND ID = 99
How can I do this in Linq. Unfortunately this app is coded in VB.NET as we inherited it that way.
I was trying these
Dim qry = (From dch In db.dch _
Where dch.Dealer.Equals(Dealer) _
Select dch.EffectiveDate).Max()
[Code].....
I wana know how can i use a value from a sql table that i added from another form?It basically supposed to validate that whatever was the last recorded added in the other form(eg formA) , i must then use those same values from the sql , into another form(eg formB).If i type a value in the textbox( in formB), it basically must validate that, the value i typed in, is not the record that was enterd in the other form(formA) (the last record added in that form)
Here is my coding that i did:
Dim conmid As New SqlClient.SqlConnection("Data Source=CHETS-TOSHIBASQLEXPRESS;Initial Catalog=PlanetDiscLibrary;Integrated Security=True")
[code].....
As in today i click on the button it will display the item when i hit again the button it will still display the same item and last for the whole. On the second day, i hit the button again it will display other items and last for thewhole day again.
[Code]...
I have a BindingSource1 and a DataGridView1.
[Code]...
I would like to select a record from my table based on a GUID using the following approach:
dim rows() as MyDataSet.MyTableRow = dataset.MyTable.Select("id = " & Guid.NewGuid.ToString)
but I get the following exception:
System.Data.EvaluateException was unhandled
Message="Cannot perform '=' operation on System.Guid and System.Int32.
What is the best way to select a record based on a GUID using vbasic.net from MS Sql Server?
I have a dataset, which have a column create_date which have value(5/12/2011 12.54.00) , but i want to select the value from dataset with date only not by time (i.e. 5/12/2011),[code]
View 3 RepliesI'm modifying a windows application , and I would like to programmatically select a row inside of a DataGrid. It seems like it should be pretty easy to do, but I'm have a hard time with this.
View 3 RepliesSelect a date and display record in datagrid?[code]...
View 20 RepliesI want to select a random record from a data source (based on an MS Access file), and place the record cell contents into certain textboxes. After the record is chosen, it cannot be selected again.
View 1 RepliesContact Title has a default value which is Sales Person. Anyhow, when a user click Edit on the chosen ListView record, i need Contact Title to have the right value that corresponds to the chosen record. For example, if user clicks edit, the fields on the left side will be filled with values. In this case, i want Contact Title to view the right value.
View 1 RepliesHow do i find the record pointer AFTER the select statement was executed. I am excuting the following code, but i need to move my pointer to the found record
adp3 = New OleDbDataAdapter("SELECT * FROM Recipe1 where RecipeName = '" & RecipeName & "' ", con)
adp3.Fill(dt2)
ListBox1.Items.Add("RECIPE NAME : " & (CStr(dt2.Rows(0)(UCase("RecipeName")))))
I would like to select a record displayed in a DataGrid and list it in a ListBox.
View 3 RepliesI have a process that is a detail/Master issue. I read (into a dataset) my detail record based on several keys. Then I have to read each master record..check some fields/update some fields and then update that master. Detail is not changed. First.. How do I not lock the detail table during my select?
[Code]...
I have a gridview displaying all employees. Upon selecting an employee, I'd like to open a new page or window that would display all of the information for that employee with the option to edit/delete/update. Once this transaction is complete, return to previous page with gridview of all employees. ((language I'm usings is VB))
[code]...
I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function
public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice
[code]...
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
I'm using something call ultragrid in my program.The program works as a mini-record keeping area (Like any datagrid, really). Well, I am adding a history to it and it allows the user to see the last 50 records searched. They get a grid showing the records. This, thus far, works perfectly What I want to do is this: I want to select a record (A cell) in the column 'Dog and have the text of that cell appear in a textbox. This is what I've tried with no success.
HTML
Private Sub HistoryTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles HistoryTextBox.TextChanged
If ugHistoryButton.ActiveRow.Cells("Dog").Selected = True Then
[code]....
It just doesn't seem to want to transfer over when I select the cell in the 'Dog' column.
I have a SQLite database and I am tyring to query the max value in the RecordID field. This query works when I run it in SQLite but I can not get the VB to return the value, what have I done wrong?
Dim getMaxRecID As String = "SELECT MAX(RecordID) FROM String"
Using cmd1 As New SQLiteCommand(getMaxRecID, pConn)
cmd1.CommandType = CommandType.Text
Dim IDresults As Integer
[code]....
The connection is correctly opening the db, and shows it as open as well. No error, just IDresults returns 0 everytime.
Depending on what i know, SQLite is supported in WP7.1, but i cant even import System.Data.SQLite to the project should i download it as a dll specially for windows phone or am i missing something?!
View 1 RepliesI am writing an app that uses both an SQLite and MySql database. The reason for this before you ask is that it means I can store a local copy of the data onto my user' own machines when they are offline, and then update them to a central server when they are next online.
The problem I have is that when using datasets (on tables created in identical fashion) the itemarray of the mysql database has 9 extra totally blank fields...where as the SQLite itemarray has only the values for the items.
here is a snippet of the code:
CODE:
ultimately I am getting an index size mismatch error but with both tables having the same number of fields this is confusing.
I'm trying to Collect Bids and Distribute the average from a Column I'm getting an InvalidCast Exception: Specified cast is not valid. on the TotalSum +=
Dim sql As String = "SELECT " & Column & " FROM " & Table & " ;"
Dim dt As DataTable = SQLiteDatabase.GetDataTable(sql)
Column = Column.Replace("[", "")
Column = Column.Replace("]", "")
For Each row As DataRow In dt.Rows
[Code]...
I'm using VB.NET and MSSQL 2005 to create an application. I was told I should rather use SQLite as I want my application to be a standalone one with embedded database. Can someone please provide me with a step to step tutorial on how to create a standalone application with an embedded database?
View 2 Repliesi am deleting from an sqlite database using the ids of the records like this the dirID is an array of the IDs Dim i As Integer = 0
[Code]...
the problem is that it dosen't alwasy delete from the database, and its not throwing any errors. Could there be a better way of deleting
I have records from server that I want to copy, so I used datareader to select all, during selection the insert also process. [Code] What is the exact sql statement to insert only if record doesn't exist in my current table? I used some of this code, but a filter was defined: like x. What if I just want to insert records that doesn't exist in the table I want. [Code]
View 1 RepliesI have an StackOverflowException in one of my DB functions that I don't know how to deal with. I have a SQLite database with one table "tblEmployees" that holds records for each employees (several thousand posts) and usually this function runs without any problem.
But sometimes after the the function is called a thousand times it breaks with an StackOverflowException at the line "ReturnTable.Load(reader)" with the message: An unhandled exception of type 'System.StackOverflowException' occurred in System.Data.SQLite.dll
If I restart the application it has no problem to continue with the exact same post it last crashed on. I can also make the exactly same DB-call from SQLite Admin at the crash time without no problems.
Here is the code:
[Code]...
When crashes, the reader has "Property evaluation failed." in all values.I assume there is some problem with allocated memory that isn't released correctly, but can't figure out what object it's all about. The DB-connection opens when the DB-class object is created and closes on main form Dispose.
Should I maybe dispose the mycommand object every time in a finally block? But wouldn't that result in a closed DB-connection?