VB SQL Database INSERT Not Being Saved
May 5, 2012
so i added a service based database in my visual basic project. At this time the project only exists of logging in or registering, after which you'll log in.now all my SQL seems to be correct and working, the code is good, but when i register new user, it doesn't get stored in the database. but it does get stored...
i know sounds weird right, well what i mean is that apparently the data is getting stored somewhere because i check whether or not the username exists already. if it does i get a message box. Now the weird thing is that between builds and runs it remembers all the users i registered, but when i close the program and later re-open it, all the data is gone...
i used parameters to insert the date, everything from code below:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
[Code]...
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Dec 16, 2010
Is it possible to take a saved .tif image and insert it into a pdf template to imagefields?
I have this code already wrote which works great at inserting text into text fields on templates.
Dim reader As PdfReader = New PdfReader(formfile)
Dim outStamper As PdfStamper = New PdfStamper(reader, New FileStream(newfile, FileMode.Create))
[Code].....
When i try to use that same code only with an image file location going to the field It runs through and just turns up a black pdf file.
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May 10, 2011
I'm trying to create an invoice program in VS2005. I can make the database and insert and save all data regardingthe customer and the vehicle,but cant figure out how to create an input control where random items"car parts" could be inserted and saved. It would
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Mar 6, 2010
I'm trying to make a form that will read my wordlist. txt (one word or phrase per line) then using a timer, insert one word randomly selected from the list, and display it in textbox1 where it will remain until another timer changes the word. The word in the textbox will display for a random time 1min to 7 min, then the textbox displays another word randomly selected from the word list.
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Jul 10, 2010
I have been searching the Forums for a solution to my problem, but I can't find anything that relates to my specific situation. All of the postings regarding not being able to save changes to a database have had to do with a datagridview. On forms that I do have a datagridview, my changes are saved.But I have a form with textboxes, comboboxes, and pictureboxes bound to a bindingsource,
Private Sub Back_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Back_Button.Click
Try
[code].....
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Sep 19, 2010
I have a very large Access database and the code which try to edit a record is below
[Code]....
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Dec 22, 2009
Using VB 2008 Express, I've constructed a simple database type app for saving contacts. The table data I save at design time is always saved correctly but data entered at run time seems to get saved even after closing the app and VB. However, after restarting the computer, the newly entered data is usually gone. Why would this be? I've seen a few video tutorials on creating simple database apps and did everything they did and am getting the same problem. I thought it was a configuration problem so I actually re-installed Windows and VB 2008 Express (as well as 2010 Beta 2). I have noticed that in the database explorer, the .mdf file has a red x to the bottom right of the yellow database icon and when I click the + it seems to turn into a black plug. Is this normal?
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Dec 22, 2009
I am using ASP.NET 2.0 with SQL Server 2005.
My page have a text box where TextMode="MultiLine"......see below
Now when I save this text in my database of course it does not save it with any HTML tags, and thus when i read that value from the database it comes back as 1 line such as....
But I want it to be dispayed just like the user typed it. Is there no out of box control that will do this for me rather than me using Ajax or jQuery?
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Mar 5, 2011
I'm saving sometimes 1 entry into the database and sometimes 10 or more. I want to remove the rows from the DGV as their added to the database. There's no reason to keep them there. [code]...
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Feb 2, 2009
I have this 4 tables. My problem is I have to save the treeNodes in the 4 tables. How can I determine that a specific treenode will be save in one specific table?
[Code]...
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Jan 17, 2011
I have datagridview in which 2 & 3 rd columns are Combo Box. I have saved the data to the database from datagridview. But while retrive if i assign datatgridview.datasource= mydatatable.It addes new coulm show the values. for my combobox columns it shows the value member values. If change the datagridview.autogeneratecolumns =false
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Apr 30, 2012
am currently having a problem saving any changes i make in my form here is my codes for each button: -Private Sub btnUpdateExistingRecord_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdateExistingRecord.Click 'This code makes sure that all fields in the members table are updated when the button is pressed. This is needed so 'the changes in the Members table are saved currectly in the database.
Dim CommandBuilder As New OleDb.OleDbCommandBuilder(DataAdapte
DataSet.Tables("Members").Rows(Include).Item(0) = txtMemberID.Text
DataSet.Tables("Members").Rows(Include).Item(1) = txtFirstName.Text[code]......
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Apr 1, 2009
I'm trying to access a database which is presently saved in .cds format (which I believe is a TClientDataSet) from within my programme written in VB.Net. The reason being, is that the programme I am writing uses the same database as another programme. Both programmes will never being running at the same time, and it is a read-only operation so I could potentially duplicate the database and convert the database to an SQL-compatible format, but obviously this isn't a tidy solution.Is there anyway that I can directly read data from the .cds file with VB.Net? It seems like this would be something that is not too complex and wouldn't be too different from just reading a .csv file.
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Mar 24, 2009
StudentId Marks obtain class
1001 76 NINE
1002 75 NINE
1003 55 NINE
1004 62 NINE
1005 38 EIGHT
1006 56 EIGHT
1007 31 EIGHT
1008 57 NINE
1009 48 EIGHT
1010 55 NINE
1011 49 NINE
1012 49 EIGHT
1013 27 NINE
1014 31 NINE
1015 48 NINE
1016 58 NINE
1017 31 NINE
1018 36 NINE
This is my database now I want to calculate rank from above this. I call this through procedure. If I select id 1001 then it will display the rank from the above data base. If I select 1007 then it must display rank to class eight.
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May 12, 2009
I have tried to test out the add delete and save function on a datagridview but the data that I added during testing would disappear after I made some changes to the code.
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Dec 25, 2009
I have a datagridview with contacts on a form with clients. The underlying table for contacts has a field for Contactnumber. This is a identity column so its new number is generated by SQL Server.
I add a row and when I move to the next record on the form, the form �nd the information in the datagrid is saved to the database. So far, so good. The problem is: when I move back and try to delete that newly made row I get an error about concurrency.
It's logical actually, the record is saved, but the dataset of the datagrid doesn't yet know what the new contactnumber is. Apparently it's not information that it gets back automatically from SQL Server.
How can I make the dataset know the new identity of the row that is saved to the database? I use a simple da.Update(dsVerwijderingen, Tabelnaam) to save the changes to the database.
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Jun 8, 2011
I have form with combobox I have database contained 2 filed "ItemID" and "ItemName" The combobox fill her data from the database from field "ItemName" I do when I choose in the combobox any item and save, the data saved in database "ItemId" Not "ItemName" by define string put on it "itemId" when the user choose any item in combobox I need when I get the data that saved in database the combobox value="ItemName"
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Feb 6, 2009
My problem is probably ignorance as to how the DGV works, anyway, the problem.I have a bound datagridview which is used to collect user input. Data for 3 of the 7 fields is entered by looping through the rows and progmatically entering common data anfter a 'Save' Button is pressed:
For I = 0 To DG1.RowCount - 2
DG1.Rows(I).Cells(4).Value = TextBox1.Text 'Operator
DG1.Rows(I).Cells(5).Value = TextBox2.Text 'Date
DG1.Rows(I).Cells(6).Value = TextBox3.Text 'Time[code]....
At this point the DGV looks the way it should...All fields completed correctly and no un used ro except for the new row.After saving :
Me.ItemTableTableAdapter.Update(Me.StockMoveDataSet.ItemTable)
The 'Operator', 'Date', and 'Time' are not saved to the database for the first row only
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Jul 27, 2010
I'm using this code to update my access database.
[Code]...
If i run the program in debugmode and then do a update it will be saved to the database.(must stop and run again to see the update. How to se the update directly?)
My main problem is that if a build the program and run it outside VS then update never being saved. How can i solve this. I tried using "commit"(maybe totaly wrong) but that didnt work.
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Dec 12, 2009
I am using ASP.NET 2.0 and SQL Server 2005. I am saving a value/string in the database <P>Test 1</P><P>Test2</P>
Now i want to decode/remove the html tags and display it properly to the user such as...
[Code]...
I am setting the value to a Text box where the TEXTMODE property of the text box is set to MULITILINE for scroll. Setting it to a normal Label work but not for my text box.......
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Jan 26, 2012
Program works but data is not saved in database and so it executes "Not According to Specification
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May 1, 2012
If you have a saved string or value in your database. How can you open this that it is selected in a treeview? i mean when you click for example a commandbutton (Open my data)
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Apr 13, 2009
I am creating a simple button based rpg and was wondering if someone could help me with 3 things how to hold information within the game until the player save's the game, Saving the game, and Loading the game.I want the saved games to be saved onto a encryted file like .db or .dat file..
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Dec 18, 2010
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]...
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Mar 3, 2009
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
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Jun 22, 2010
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]....
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Jan 31, 2012
I'm having a problem that I've spent all day researching to try and figure out. It seems that the 'Attachment' type in an Access 2007 DB file is stored as three seperate pieces of data in the one field. If you open up the Relationships view, you can see it in the table itself.
I'm trying to do a simple DVD movie database to keep track of everything I have, and who I've loaned things out to. I'm doing this in part to further my education in VB.NET and to figure out some of the things involved with interacting with databases. I haven't actually written any code yet, read on and you'll understand what's going on.
I've got an Attachment field setup in the database to hold a picture of the movie poster or DVD cover art or something like that to help identify the film, and I named it 'Art' of type 'Attachment' since that will hold an image. Looking at the table in Access I see that 'Art' is broken down into three entries: Art.FileData, Art.FileName, Art.FileType. I'd like to be able to pull the filename and file type and display those on the form, but we'll get to that later.
When I use a drag-n-drop gridview of the database into my blank VB form, the Art field just shows the filename, in my case it's 'screenshot.png' since I just dumped a screen shot in as a test. So, the gridview on the form will see the field and display the filename, which is fine. If I do another Windows form and drag-n-drop a Details View (instead of the grid view), and have the Art field in the table set to a PictureBox (in the Data Sources view, you can highlight a field and then designate it as text or picture
or date or whatever), I end up with a blank box instead of my image.
I haven't typed any code into any of the forms at this point. I'm still in the Designer trying to get the layout and stuff the way I want it, afterwhich I'll start adding buttons and methods and such to search for things, print out a nice list of the films in the database (with and without pictures) and be able to sort out a list of who I've loaned things to (like an overdue book list). But so far, by just dragging and dropping from the Data Sources into the form, Studio automatically creates the dataset and bindings and such to read from the database file, and I can see all of my test data *except* for the image in the PictureBox (it's just blank/empty).
So, if you want to see what's happening and sort this out, then you need to do the following:
1. Create an access database with a table, that table having at least one field of type 'Attachment'
2. put a picture/image into that field as a first entry
3. in Studio (or in my case Express), create a new project, which'll have a blank form in it by default
4. create your database connection by using the 'Add new data source...' wizard for your Access DB file
5. from the Data Sources, expand the table views and change the attachemnt field from the default of TextBox to a PictureBox (you may have to Customize the types to get PictureBox to show up)
6. drag and drop that whole table onto your form, which will automatically create form elements to display the data and stuff
7. Run it, you'll see the problem.
I have no idea what I need to look at or edit or change to get this PictureBox to display the image from the database. Like I said before, if I leave the type set to the default of TextBox in the Data Sources view, then the field will display the filename of the file stored in that field of the database. Having not typed any code yet, I have nothing that I've done that I can edit other than the automatically created stuff that Studio did when I dragged the table into the form.
Being completely unfamiliar with how VB.NET wants to talk to a database (SQL server, Access or otherwise) I decided to create this little program to learn how to do it. But I ran into this problem and need a little help. What I'm looking for is what I need to change in the bindingSource or TableAdapter or TableAdapterManager or BindingsNavigator or whatever resource is binding the fields on the form to the entries in the database so that the PictureBox will get the part of my 'Art' field that actually
holds the image, not the filename or the type. I don't know how to do that, and that's what I'm trying to learn. What I would like to know is how to both get the image to display in the PicutreBox and pull the filename for that image as well to display beneath it or something in the form.
And before someone starts complaining about writing the whole program for me, I must say this is one element of a large personal project and if you read my entire post here you'll see that there are many other elements that will eventually go with it. I just need some help getting this one thing to work. Multiple web searches and such point to a variety of different approaches, many of
which I've tried to implement but nothing has worked. I'd like to do this entirely in .NET with no other dependencies if at all possible, but some of what I've seen so far today suggests using Interop and other things to make this work, but those haven't panned out for me either as of yet. My ultimate goal with this whole program is to have one (albeit probably large) executable file that will encompass the entire program, and to have it all work. After that, then I'll look into things like creating my own modules
and DLL's and such to thin it out, but I'm not even close to that point yet.
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Oct 15, 2011
why my insert doesn't insert into mysql database
[Code]...
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Feb 20, 2011
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
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Jun 6, 2010
I 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]...
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