Sql Insert Double To Database
Oct 15, 2009In my vb.net code, I had the following code:
[Code]....
In my vb.net code, I had the following code:
[Code]....
I'm somehow getting a double insert; every time I submit the form, it sends two records to the database. I can't figure out what's going on. This is a general idea of what my code looks like:Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
'Data collection'
'Define Connection'
Dim myConn As New OleDbConnection
[code].....
In my vb.net code, I had the following code:
[Code]...
could someone tell me what i am doing wrong in this codeProtected Sub insert_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Insert.Click
[Code]...
Visual Studio 2008VB.NETFramework 3.5Windows Application
I have a SQL database names TestSQLVB
In it a table called tblTest2, with a three fieldstest2id , int, pk, increment by 1field1, varchar(50)field2, varchar(50)
I have a dataset named Dataset2.xsd
A tableadapter named tblTest2TableAdapter
A insert query names InsertTest2 with fields @f1, @f2 and ExecuteMode = Scalar
When I run the following code per MSDN [URL] the database does not get updated.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim testds As New DataSet2TableAdapters.tbltest2TableAdaptertestds.InsertTest2("One", "Dog")
End Sub
im in the middle of doing sql queries i can search my data base usingGetDateFrom (Select, from, where) Me.nameTableAdapter.FillBy(namenDataSet.descip, Me.box1TextBox.Text,Me.box1TextBox.Text, Me.box2TextBox.Text, Me.box2TextBox.Text)i have this working fine im struggling with inderting data to my databse i have made the query ..
INSERT INTO `details` (`Forename`, `Surname`, `Username`, `Password`)
VALUES (''& ForenameTextBox.Text &'', ''& SunameTextBox.Text &'', ''& UsernameTextBox &'', ''& PasswordTextBox &'')
[code]....
why my insert doesn't insert into mysql database
[Code]...
here is my code so far:
Public Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Dim i As Integer
[Code].....
when i click the button, i get a error message saying "Syntax error in INSERT INTO statement". as far as i can tell, i have everything i need to insert a new row into the database, and i dont see why this problem is occuring.
item(0) is an autonumber key field, so that should make a new record by itself, and i have declared the input textboxes as the data() array
1st i get this error
query error and Conversion from string "Insert into Table1 (cust_id," to type 'Double' is not valid.
when inserting data to database 2nd error is
when use employee name to get employee id i got result always 0 here is the code
" select id from customers where name2='" & ComboBox1.Text & "'"
With VB.net, I'm coding a simple application to get more used to the new .Net format.
I'd like to save all the information to a 'new' database file. how to create a database on the fly, once that is done i'll be able to connect to it no problem, but actually creating the file is proving difficult to work/find out.
Also, with vb.net and the newly created custom file, how can it be made to automatically open that information with the program?
Is there a method in installation to associate the file type with the new program? How can i check when the program loads if a database file has been 'double-clicked' (rather than just running from the .exe of the program) and proceed to load the data?
EDIT1 - Extra InfoThe windows application has many different fields and content etc, then i need to save that to a file that could later be loaded by 'double clicking'. I assumed the easiest way would be to create a mini-database for each unique file
I have a form where when the user clicks the button the values of the form are stored in SQL database. I want to write code in order to check if a specific textbox-value already exist in the database table (in the field "Name"). I 've tried writing something but it doesn't work properly.
View 2 RepliesI created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
[Code]...
I'm using a OleDB connection to a access database. I'm entering a row into the database to set some user preferences. What i need to get is get back the row ID of the row I just entered. I'm more familiar with PHP and with PHP I use use this entry
[Code]...
I have a situation where I am handling both single & double mouse click events on a form. In both cases something has to be loaded, however when a double click occurs, I do not wish to execute the code attached to the single click event.Is there a way to intercept the mouse click's and check if double or single and then execute the right event appropriately?
View 2 RepliesWhen I insert a new record into my DB the same information gets two records not one. I am using A datatable and sqlcommand and sqlconnection and sqldataadapter and I'm using me.bindingcontext(datatable).position to move between records.
View 2 Repliesim having a problem on double execution, this is a part of audit trail on my system, the DELETE FUNCTION is working, but it aint updating, im getting an error - it says that "Syntax Error on update statement" on i tried to manually query it on my access and it is working, i bold the statements that affectes the UPDATE function
Dim burahin As String
burahin = MsgBox("Are you sure you want to delete a customer from the database", vbOKCancel + vbQuestion, "Administrator")
If burahin = vbOK Then
[code]....
I have a basic calendar schedule i want to loop through and then do some checks. My first data reader works fine. But as soon as i put in the second data reader it does not finish.Here is my code
Dim mycommand As New MySqlCommand
Dim mycommand2 As New MySqlCommand
Dim myData As New DataTable[code].....
Basically the above code looks up distinct calendar entries in the database.i then loop through the entries and put the items in a list view.The code above will list about 1600 rows.in the above code if i uncomment the 2 lines the system will break It will on display one line of code. What im trying to do in the second query is to see if there are double bookings in the database.
I am currently writing a VB .NET application where I am trying to open 1 database, create a select statement and then post the results into another database file using Microsoft Access database 2003.
The code seems to stop executing at the statement cmdJetDB.ExecuteNonQuery()
I am using the following code:
Dim conn1 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:Sample.mdb")
Dim conn2 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:db2.mdb")
conn1.Open()
conn2.Open()
[Code]...
Question: What is it that I am not doing. I opened both connections, stated my two SQL statements, yet it is still not working. I really need to get this application working. Please Help.........
I have a htpc project that I am working on. The main program loads dll plugins which are basically other win forms. On each of these forms, including the main program, I use a picturebox (a double buffered picturebox) for the background image and then draw everything on it by hand. Whenever I load the form from the dll and show it, I get a weird flicker. It looks like it is the previously used double buffer. Is there any way to clear the background double buffer before the flicker? Or am I going in the wrong direction?
Here's a couple of videos of the problem:
[url]
[url]
Notice the black screen with the white lines on it or the flash of the desktop after I click "Movies." How do I get rid of that?
For greater accuracy I should use a Decimal instead of a Double ( so I've been told ). Why then have Microsoft chosen to use DOUBLE for most of the functions that return a floating point value in the Math Class?
[Code]....
In vb.net, im using objWriter.Write("playerA= "x"")as you can see im using double quotes inside double quotes, how do i skip it so the error doesnt show up?in php you make an "" to skip the string like ("playerA = "x" ")
View 6 RepliesI have 2 Database in my VB.net application. I am using 1st database for daily operations. I would like to send one of the table records to online database. How Can I do that? First database is MSSQL Online database is MYSQL. I have created connections already using MYSQL .net connector.
View 2 RepliesWhen i use VB6 i get the following outputs
961.605 * 100 = 96161
936.495 * 100 = 93650
929.295 * 100 = 92929
NOW..... When i do the above in vb.net 2005 i get the following
961.605 * 100 = 96160
936.495 * 100 = 93650
929.295 * 100 = 92930
How can i get the same output as the VB results. And i have tired it ! Type conversions, math functions, everything i can think of to get the same VB6 output !
I got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
What I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
[Code]...
I am trying to connect my code to a database and insert a value using ID as a way to access but when compiling, the catch part always shows up, If any body can give me a hint for that, here is the code,
Private Sub btnSumit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSumit.Click
Dim intId As Integer
Dim strAnswer As String = comboCountry.Text
If strAnswer = strCountry Then
[Code]...
I am trying to add a new record to a table, well first it checks if there is already a duplicate record in the table, and if not it makes one. If there is a duplicate, it tells the user.[code]
View 2 RepliesThis my code in VB.NET. My try catch says there is a syntax error in the instruction INSERT INTO. I don't know what happened to my INSERT. I searched for the error for over an hour... I'm not an expert in VB.NET, I'm better in C#, but I need to do this anyway in VB..
[Code]...
I have the following code, which its aim is only to insert a row formed by 4 fields (textBox) in the DB. The database is created by Access.
Private Sub Insert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Insert.Click
Dim connectionString As String
connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and Settings
obertoMis documentosVisual Studio 2008ProjectsDiccionarioDiccionarioDiccionario.mdb"
Dim dicDataSet As New DictionaryDataSet1()
[Code] .....
But unfortunately it doesn't run, when I debug, the code passed through all the lines without problem, but it doesn't insert the row in the DataTable. One curious thing is that when I run the application the database which remained connected It disconnects automatically, and I don't know why.
[Code]....
Thought I should probably say im using Windows 7 and the 2010 beta Visual studio