I have been on this for a week, with no luck, I keep getting the same error at the same place. IBasically, I join 3 tables together for reporting, I update one of the tables while reading thru, after I want the updates to stay.The error is something like "Update requires valid update command on Datarow".[code]
View 10 RepliesPrivate Sub Save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Save.Click
conn.Open()
Dim cmd As New OleDbCommand("Update (SELECT Employee.empno, Employee.emplname, Employee.empfname, Employee.empmidname, Employee.contactno, Admin.description FROM Admin INNER JOIN Employee ON Admin.adminNo = Employee.adminNo) Set emplname=?, empfname=?, empmidname=?,
[code]....
database: MySQL i use connector
i have two tables with the following contents:
tbl_user_infouser_id(Primary Key) fname lname tbl_accountaccount_id(Primary Key) user_id(Foreign Key) username password NOW, i want this two tables to be displayed in the datagridview
so i used this codes:
[Code]...
have a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
[code].....
I have had some reall problems with this. I have a form with a datagridview, now I can add new records and the dataset will update fine, but it wont update when I want to delete a record.[code]...
View 1 RepliesIm using a dataset to add records into an xml file.what i want to know is... can you use a dataset to update a existing record in the xml file?if so can i get the dataset/row to reference the specific "record id" i am wanting to amend?
View 1 RepliesTell me what happen when i do following code?
SqlCommandBuilder1 = New SqlCommandBuilder(SqlDataAdapter1) SqlCommand1.CommandText = "select * from phieumuonsach " SqlDataAdapter1.InsertCommand = SqlCommandBuilder1.GetInsertCommand SqlDataAdapter1.Update(DataSet1, "phieumuon")
Today i have been checking out the concept of datasets and i like the way they work except for a minor issue i have with it.The following code should get a databasetable and put it in a dataset and return that set to the user.[code]I submit the table name and it will select it, read it and fill the dataset with it, then return it. And it does exactly that once.If i try to re-read the same datatable it just returns the exact same dataset as the first time yet i am 100000% sure that i changed it .
View 1 RepliesSo I'm not familiar with much vb code but I was hoping someone my spell out something pretty generic as far as updating a database. I'm pretty sure I've successfully edited rows but when i'm using my database update i get an error, probably just incorrect syntax. This is what I have so far...
[Code]...
I use this code and update the database with changes in my DataSet but the changes are not showing up in the database.
' Update the connection object.
'------------------------------
myConnection.ConnectionString = FormMain.strDatabaseConnection
[code]....
this code that i use just update the datagridview not update at dataset..anyone can tell me what wrong with my code.
Dim mResult
Dim ObjConnection As New SqlConnection()
mResult = MsgBox("Are sure want Update this record?", _
[Code].....
I Need to Edit Invoice After Load this .I have Two Table : Invoice_Summary And Invoice_Details
After I Load Saved Invoice I want to edit but i have no Idea how can i do
I have been answering question about updating Table or DataBase Using DGV. Most the people still having problem about it. Being honest with all of you, I don't know why?
View 10 RepliesI have been stuck on this for the last 30 min, can't find out where I am going wrong. Its fully functional scrolling through records but I get an error when I try to update a record. The error is "Update requires a valid UpdateCommand when passed DataRow collection with modified rows." I include a pic of the code and error.
View 2 RepliesI need to get information from two tables onto my form. I'm using a DataGrid called SQLGrid which I'm populating in code with the information I need to get out of both tables.
Private connstr As String = "Data Source=MAUDOT3;" & _
"Initial Catalog=ExxColl;" & _
"Integrated Security=True;"
[code].....
I need my application to be able to update the DataGrid, and commit those updates to the database. My problem is that all the research I've done so far has led me to believe that there's no way I can do this because the SqlDataAdapter.Update() method only updates 1 single table.I just had an idea to make my event handler execute a stored procedure that creates a view on the database, populates it with data from my dataset, and then distributes the information between the two tables where needed.I guess another solution would be to use 2 DataGrids and then tie each of them into a seperate DataAdapter/DataSet, and then update each when the Event is called. The problem here would be that it's more work for the end user to make changes, so I'd really prefer to do it another way.
I have a form in vb8 that is set up as follows:
I have a table in my Access database calledUsers that has a name and a password (encrypted).
Using the toolbar I created aBindingSource with a name of UsersBindingSource and a dataSource ofUsers
Using the toolbar I created aDataset called with a Name and a DatasetName called Users_Dataset
Using the toolbar I created atableAdapter called UsersTableAdapter
I added two textboxes on the form and changed theirDatabindings...Text property to the corresponding field in the Database.
How to now update the database when I click Update. What the program needs to do first is encrypt the Password before saving it. I wrote the code in the TextBox2.Lostfocus event to encrypt the data a place it back into the TestBox2 field. The only samples I find on the net refer to DataGridView controls (which work) but I don't want to use them. How can I get the database to accept these changes as well as changes to radio buttons or comboboxes?
new to vs2010 express trying to accomplish a simple task read records from a sql server DB table and add them to a table (different format eventually) in an access DB Sample code below seems to work ok up to the point of the data actually showing up in the access table.
[code]...
On a form i have several text boxes binded to a bindingsource and including a datagridviewI have populated the textboxes with database fields successfully and the datagridview displays the correct information.I have the following code to save the information to the database but i cannot get it to work. [code] I have tried many code examples here in order to save the data, none of which has worked.Can anyone please help me with this?
View 1 RepliesI have a datagridview that was bound using the wizard and all the column created that way. So I haven't done any code to bind the datagridview. It will pull the data from the database and dataset just fine. My problem is when I create a new row it won't update the dataset or database. I have tried different ways that I thought it would work in the code and still haven't found a usable way to do it yet. Or if I need to do all my binding and columns through code give me an idea where to start if I have to go that route. This is my first experiences with Datagridview. I normally use comboboxes and textboxes to write to a dataset and database which all work very well.
View 8 RepliesI have a vb.net form with a dataGridView
The dataGridView data source is the dgvTableAdapter with this sql statement
SELECT membres.ID, membres.refere_par, bands.titre,
membres_1.prenom & ' ' & membres_1.nom AS reference_nom
FROM ((bands INNER JOIN membres ON bands.ID = membres.[band])
INNER JOIN membres membres_1 ON membres.refere_par = membres_1.ID)
[Code]....
I know the delete statement works because I saw the changes in the database. If I close the form and reopen it, the dataGridView is up to date.
The membres table is an access table
I'm running the app in visual 2010 debug mode.
i'm using vb 2008 express editor, and 3.5 compact sql, through my program, i make changes, like altering rows, deleting or adding new rows, to a dataset. i want, that when button 1 is pressed, all changes made to that dataset, are updated to my database. what is the line of code that does this? [Code]
View 1 RepliesI am having the same problem <as this >> when i update my record in Access Database. It is successfully updated the record in the database. but the dataset in my project is still not updated. I am using vb 2005 to develop the application.
View 2 Repliesi going to add, update and delete records on xsd file (i got this xsd file through Data Sources Tab, i add new data source my VG.mdb)
View 7 RepliesHow to update combobox values coming from a dataset if I change the connection string. The connection string takes effect but doesn't update the dataset tied to the combobox.
View 3 RepliesI have a filled dataset from a query.
I must modify 2 columns in this dataset, based on a custom function value (a normal vb function), which parameter is an another column from the dataset.[code]...
I am developing an application which uses a database that holds the information about a company and it's personnel. but when I try to edit already existing data in the dataset it just won't update it. I've tried all the method the MS sites provided me, but it just won't. the code looks like this: (notice this code wasn't complete)
[Code]...
AddNodesTableRows As SampleDatabaseDataSet.NodesRow
Dim i As Integer
For i = 0 To 10
AddNodesTableRows = SampleDatabaseDataSet.Nodes.NewNodesRow()
[code]....
End Try I've get no errors or exceptions from this code but it will not put the data into the database file. It always run through the "update successfull" yet nothing is ever written out to the file.
I have a VS2010 VB application using a SQL Server 2008 R2 database. I display a record in a form and allow the user to update the record and save the changes. However, the changes don't make it to the table. Here's the sample code for the Save button click[code]...
View 5 RepliesI have a table in my database that the fields of it are not fixed in number and name. in fact this table is the statistical report of other sections of my database.I want show this table in a data Grid View after finish calculation. I created a dataset and connected it to my Data Grid but the number of columns and names of them are not flexible and don't change according new statistical reports that would be available in my table.Is there any way to update my dataset and recreate it according to my new information in my table and show it correctly with Data Grid?
View 1 RepliesI have a connection string for my SQL database connection called my.settings.GCRConnectionString which was created when I created my dataset for the application. I want to change the value of the connection string but it give me an error saying it is ready only. Is there a way to update my connection string during the run-time?
View 4 Replies