DGV Update - Allow Users To Edit Existing Records?
Aug 17, 2009
I have a DataGridView bound to a non-SQL Server database. I need to allow users to edit existing records but under certain circumstances I need to intercept the edit and instead of committing and updating the dataset I need to delete the edited record and re-add it as a new record. I have tried using every event I can think of to do this but haven't managed to get it right.
The closest I have got is with this:
Dim theRow As DataGridViewRow
Private loading As Boolean = True
Private rowLeft As Boolean = False
Private WithEvents cm As CurrencyManager
Dim copiedRow0 As String
[Code] .....
This almost works but sometimes completely messes up and re-adds rows twice and all kinds of other bad side effects. It seems a really simple thing to want to do but I just can't get it working.
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Aug 17, 2009
I have a DataGridView bound to a non-SQL Server database.I need to allow users to edit existing records but under certain circumstances I need to intercept the edit and instead of committing and updating the dataset I need to delete the edited record and re-add it as a new record.I have tried using every event I can think of to do this but haven't managed to get it right. [code] This almost works but sometimes completely messes up and re-adds rows twice and all kinds of other bad side effects.
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Sep 28, 2009
how to update records on an existing access database using vb.net with just a textbox and a command button and how a specific record of a field can show up in a label or a textbox
i connected vb.net to my access database by just clicking on "add new data source">>"new connection">>"microsoft access database file" and just continue..tested connection and done.
you can see in the screenshot of my form, by default the left side textboxes are disabled but they're enabled if the user checks the checkboxes and disabled again if unchecked.
assuming that the textbox is already enabled and i want to enter a value in the Brewed Coffee area of the form...for example 5. when i click on my Submit button the value of that particular record in the database will be updated, so in my table the value of the quantity field in Brewed Coffee will be 5.
another thing is that how can i see a particular value on a label or textbox from my database like on the Prices area. in my database if a product's price is 80 then it should show a 80 in the label. the values of the prices from the screesnshot of the form are not the ones on the database xD i just typed them in.
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Dec 29, 2011
I Fill a DataTable using a SQLDataAdapter then use a BindingSource as my DataGridViews DataSource. My DataGridView contains a ComboBoxColumn named "Status". There are two ways to update the Status column. One, the user can change the value by clicking a cell in the column then the combobox appears and they make their selection. Second, the user can click a button on the form and the Status for all the visible rows are changed to "Exported". I use a stored procedure as my adapters Update command.
[Code]...
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Jan 1, 2011
What I am trying to do is update existing records in a dataset with an unbound datagridview. It updates just fine but I have added a simple backcolor change for errors. What I don't understand is it will update fine but throw the backcolor = red at the same time. Am I overlooking something here?
vb.net
For Each dr As DataRow In Form1.DbDataSet.Tables("tblInventory").Select() For Each row As DataGridViewRow In DataGridView1.Rows If row.Cells("colInventoryID").Value = vbEmpty Then 'Do Nothing Else If dr.Item("Inventory ID").ToString() = row.Cells("colInventoryID").Value.ToString() And
[code]....
I'm trying to get this working in a test application before adding it to my main project, so that's why the names of controls are the way they are.The errors I'm trying to show are if "Inventory ID", "Cart" and "Shelf" do not match. When they don't match it doesn't update, which is what it is supposed to do. However, if they do match they update just fine but also show the Inventory ID error. If I comment out that ElseIf for the Inventory, it throws the Cart error. It's like the ElseIf blocks get called even if the If statement is true...
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Oct 14, 2009
I'm using visual basic 2008 express edition by linq to sql for my database operation such as edit records. I did not use any sql server but I'm just using the built-in sql server within the visual basic 2008 express. I tried to revised the codes, no error in syntax but there's an error at runtime and it pops-up a window message saying its error message. What I want is to edit the records which were retrieved from the database into the text-boxes and when you click the button5 whatever the new value on the text-boxes should replace the previous one.The Account field is the field in my Table1 in memrec.dbml which I set up for primary key is true and the rest of the fields are false in its primary key.[code]...
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Oct 14, 2009
I'm using visual basic 2008 express edition by linq to sql for my database operation such as edit records. I did not use any sql server but I'm just using the built-in sql server within the visual basic 2008 express. I tried to revised the codes, no error in syntax but there's an error at runtime and it pops-up a window message saying its error message. What I want is to edit the records which were retrieved from the database into the text-boxes and when you click the button5 whatever the new value on the text-boxes should replace the previous one.The Account field is the field in my Table1 in memrec.dbml which I set up for primary key is true and the rest of the fields are false in its primary key.The code below still found an error when you run the program and it pops-up a window which says:
NotSupportedException was unhandled - Sql server does not handle comparison of NText, Text, Xml, or Image data types.It highlights a yellow background on the line:
db.SubmitChanges()
These are what I see on each field's property on Table1 in memrec.dbml property window:
Access - Public
Type - String(System.String)
Server Data Type - Text[code]........
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Oct 26, 2009
When i tried with the code discussed in this forum i am able to add records but not modify any particular existing record.
[Code].....
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Sep 26, 2009
This is the hardest part of LinqtoSql database handling operations in visual basic 2008 I ever encountered,w/c is the update operation cause Ive been posting this thread several times from the other forum site but noone yet was able to answer my question,examples were given but its not efficient cause it won't specify based on the codes i gave and i know its not easy but im still hoping that one of the answerers of this forum will be able to resolve this particular linqtosql operation codes. I used textboxes in manipulating all data into the database such as displaying records, adding records, & updating records, basically I used with textboxes in doing those database operations. I will give you 3 block of codes w/c corresponds those database operations I used and differentiate from each other inorder for us to determine why one of them has no progress or won't do its operation w/c is the update operation...
*************Block of Codes#1(Adding Records)*************
Private Sub Button1_Click(------------------) Handles Button1.Click
Dim db As New memrecDataContext()
[code]....
I would like you to identify,differentiate, or troubleshoot the block of codes#3, or anyhow, why it has no progress at all or it won't edit and change the records but it runs and no error in regards with its code, and the other 2 blocks of codes were able to successfully do its operations.I was just wandering why only the block of codes#3 is not doing its operation successfully when you change the record being displayed in the textbox.Is there a possible way to edit records in the textboxes?If there is.... Is it possible to debug the block of codes#3 to successsfully do its operation? If you could possibly give an example,can you based it on the block of codes#3?
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Apr 28, 2010
I have a form that adds new contacts. New contacts are added by pressing an appropriate button and they appear as an entry in the list on the form. I try now to add an edit button that will edit existing entries.User will select a given entry on the list and press edit button and will be presented with an appropriate form (AddContFrm).Right now it simply adds another entry with the same title. Logic is handled in a class called Contact.vb Here is my code.
Public Class Contact
Public Contact As String
Public Title As String[code]....
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Oct 27, 2009
how to get records into oracle database delete from db & update the records i have successfully connected my vb 2008 win form with oracle 10g.
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Dec 29, 2011
How do I update records in a dataset with records in a transaction file?
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Jan 30, 2009
All I need to do is only allow the users to add new records, I am not using a datagrid rather a details form (i.e. individual text boxes etc...).
I do not want the users to be able to view current records or edit them. If I just used plain text boxes then that obviously would be simple but I've already designed my rather detailed forms using the data objects (so taking the fields straight from the Data Sources mainly because it saves me writing the connection strings and stuff.
Hope this is possible without going back to using normal text boxes and writing the connection string out my self, only because that's a long way back to go right now.
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Feb 14, 2010
I have a Visual Basic .Net form (launches after the splash screen tests database connectivity) and it is not focusing above other existing windows on launch. How do I get it to focus above all existing windows and Windows Explorer windows?
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Mar 31, 2012
i'm just new to Visual Basic.. i'm using 2008 version by the way and here are the codes that i made
[Code]...
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Jan 3, 2012
I have written a program and everything works fine, but I want to make sure that only the administrator can add or edit users to the system. As I see it, I need to add an argument (if statement) to my login button code to disable the add / edit users button on the main form if the user is not Administrator. [Code] I have tried putting my If statement in but it doesn't happen the button is still active even when I login as admin.
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Mar 12, 2009
having trouble adding records to an existing dataset, I tried the following code but it made a new connection which I don't want:
Dim inc As Integer
Dim con As New OleDb.OleDbConnection
Dim da As OleDb.OleDbDataAdapter
Dim sql As String
[code].....
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Dec 9, 2009
I have a datagridview that is bound to a dataset by dragging it onto a windows form. I want one of the columns on the datagridview to be read only for existing records (rows), but I don't want it read only when the add new icon is pressed on the navigator. How can I tell when a row is being edited as opposed to being added?
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Feb 6, 2012
I have a vb application sitting on sql 2005 database i want a scenario where the application can check the number of records inserted into a particular table(Users) , if the number of records inserted into that table after 1wk since the last insert is less than 100 records it should pop up a warning alert with the total number of records
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Aug 26, 2009
i have a sql table which has 2 fields number & name
1 abc
2 xyz
Situation is that the app finds out max of number and increments it by 1 to get new number.The problem is when two users enter some record sometimes two records get saved on same number.
[Code]...
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Jun 21, 2010
add edit and delete records in access using vb.net.i got textbox 1 to5 and three buttons which named addnew ,edit, delete.my database is in name records.mdb i want user to enter the information and click addnew button and the system save the records and so on with edit and delete.
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Sep 12, 2010
I have a form in which I am updating records to table Users in database China.accb. The btnClick sub successfully updates the Dataset. However, the actual table Users never gets the update. What am I doing wrong? The code is below.
[Code]...
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Jan 27, 2010
We know:"UPDATE tt SET Points=" & iPoints & " WHERE Ref='" & sRef & "'"Can we update several records using UPDATE command at one time?
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Jun 6, 2011
how to use datagridview and why and when we use adaptor and data reader
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Jul 18, 2011
with vb.net + access 2007 i am having a database with 2 tables & 4.85 lak records
the task:i want to Loop through all the records & compare the Current record with the previous record & edit the database with some changes as per logic i have written a procedure but the process is very slow approximately it is taking 1 to 1.5 second to check & edit a record
here is my code
vb.net
Private Function ISCasuaLty(ByVal CAStype As String) As Boolean 'this procedure checks whether the duty type is of Casualty'& returns true if the casualty is "Y" else "N" FALSE If CAStype = "" OrElse CAStype Is Nothing OrElse CAStype = " " Then Return True ' there
[code].....
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Jun 21, 2010
Dear Friends I have Developed a Successful Database Software, it include Datagrid, First, Last, Next, Previous, Add, Delete, Edit, Update, Search just Every Thing is Working Nice, But I need help from one of expert from you. my problem is that every time when i Start program its all functions are workin including edit and delete. (mean data (rows) Added at previous run is able to be Delted at current time) but when i add new record at current run time it adds succesfully, but while at same run time session (current) i tries to Delete or edit new added roecord it is not working, in simple words new added records are not able to delete and edit at same run session. i m including project's zip file and plz try to run it and add new record, after adding record at same time try to edit or Delete new added record.
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Mar 14, 2008
I'm using Visual Basic 2005 and I have created a program to display, edit, and create insurance records. Right now I am using an access database and it is hosted locally. What I want to be able to do is host it on our server here at our office and have the program installed on every computer on the network.
My connection string at the moment looks like this:
Code:
Public con As New OleDb.OleDbConnection
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = C:Insurance ProgramInsurances.mdb"
'Opens connection
con.Open()
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Oct 19, 2009
Is it possible to do a multiple records editing by linqtosql method in one click event? What I've been trying to do is to edit all the names in the table which are having the same account number. I was able to edit but only one name has been edited and the rest are not.
The codes I used.
Private Sub Button2_Click(------------) Handles Button2.Click
Dim accnt As String
accnt = Textbox1.Text
Dim db As New memrecDataContext()
Dim editrecord = From mem In db.Table1s
[Code] ......
Why is it these codes could only edit records in one datarow?
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Apr 6, 2008
I am looking for sample code that will allow me to read, write and edit records to a local MS Access DB using VB9.For my project, the datagrid and other controls are not an option.I have looked everywhere and cannot find any code examples.I assume it should be straight forward, but with all the changes in VB9 its tough.
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May 12, 2010
how can i access the sql server express database table in vb.net on forms to insert records,delete records,search records,edit records.I have made table by using visual studio.
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