I need to run a query when I add/Change a value in my first column in a datagridview. When I add a value (a identifier from a table) in my first column, then I need the query to retrive the rest of the values in the table recordset. When I try to run a query, all i get is a query that updates my whole datagridview, and not only one row, with this code in the CellValueChanged module of the datagridview:
Is there anyone who knows what I have to do, so I can add several rows to my datagridview, and let a query retrive my recordset based on my value in the first datagridview column?
My application is in VS2008 coded in VB.Net I have a DatagridView.I have a Save Button on my Form.Now my requirement is i want to the Data that is populated in Datagridview when i click on Save button. I want to do it using Update Query.
below is my code.
CODE:
I want to update only the Fourth Column in Datagrid.
CODE:
Im getting an error in the Query as End Of Statement Expected.This is the first time transacting using DatagridView.
I have a datagridview and i want it to display the results from a query. How would i go about doing this. Here is my code so far:
Dim searchStr As String = S_date_menuItem.Text.Remove(0, S_date_menuItem.Text.IndexOf("'") + 1) searchStr = searchStr.TrimEnd("'") adapter = New OleDb.OleDbDataAdapter("select * from account where Date= @Date", acctconstr) adapter.SelectCommand.Parameters.AddWithValue("@Date", searchStr)
that is my query but i don't know how to get my datagrid to display the results.
I'm using the following update method.. I'd like to be able to update the value of a checkbox into the existing query if possible. how to do this the correct way?
Public Shared Function SaveMemo() As String Dim sConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and Settingsdiw07My DocumentsDaily Backupsphone memo backend.mdb"
I have been on a database project for a while now. I wanted to be able to make changes to my database using the update command of a Datagridview control.However, I have been faced with a series of unsuccessful outcomes.I want to do this how do I go about it?
Objective to clear the datagrid view after updating. This should happen when the user clicks the OK button when the update is confirmed. Below is what i have.I currently have
Private Sub SaveToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripMenuItem.Click 'This updates datsource Try
I wanted to update a column in my table, i have written the code it runs fine without any error also it displays the confirmation dialog box but the table is not updated whats wrong with the code.
Dim sqlConn As New SqlClient.SqlConnection sqlConn.ConnectionString = "Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|housingsociety.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True"
If using a datagridview to update a database and the datagridview is bound to a bindingsource which has its datasource as the table to be updated: where dshould you place the tableadapter.update(mydatarow)
I'm creating a form application using vb. I'm still new to this and I'm teaching myself via the internet so please don't be too mean. I wrote my code using queries that I created in visual studio. I don't quite remember how to create an update query and write the code to update different datagrids. I tried searching the forums, and I can't find anything that fits into the way I wrote my code. I have an update button that I want to use to save all the edited data in the form. Here's my code so far:
Public Class Form1 Private Sub Blsys_systemsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Me.Validate() Me.Blsys_systemsBindingSource.EndEdit()
I am having a bit of a problem with a query and I have google around and I still haven't find out a solution.I have an update query, but when it is executed I get a Syntax error in UPDATE statement.
i have a query that when i updating my database it doesnot take *,&,-,#,@ all these,but when add a new database its taking all above i have fields of roll#,Sname,Age and address?
I COMPLETELY understand how redundant this is but I NEED it.Upon users creating a User account which only contains the ID, Username, Password and CustomerID I must also have a record in Customers create itself but null everything and the User.User_Customer_ID must update to the newly created Customer.Customer_ID
I have everything working but this pesky update query. The ONLY thing it needs to do is change User.User_Customer_ID to Customer.Customer_ID I managed to story the User.User_ID in an integer called UserID and Customer.Customer_ID in an integer called CustomerID I have tried a million different ways with no success
On an SQL query I have. I have the select query working fine but according to the result I need to set the column of a table to 0. I have the following Select query:
CODE:
So where the CommissionCalculator SetUp > 0 I want it to Update the CommissionStructure SetUp column to 0. I was thinking I might need an IF statement but I dont know how to work with them in SQL.
I am not getting any errors. But the update query is not executed as it does not change the database.
Dim cmd3 As New SqlCommand cmd3.Connection = con cmd3.CommandType = CommandType.Text cmd3.CommandText = "SELECT * from table 1 join table 2 WHERE (EXP_RETURN_DATE < GETDATE())" cmd3.ExecuteNonQuery() [Code] .....
I have an sqlserver 2000 database and i am able to add records and read from it but i cant modify existing records. My test table just hav user_id,Name, , Phone and State for columns.
I am beginning to work with .NET technology after several years of VB6 and C++ and I want to learn as fast as possible.
My problem is with a DGV. It shows the prices of several store items, and I intend to let the user modify those prices by entering a % in a textbox (radio button states if that % is positive or negative) or by editing cell by cell manually.
As editing prices is kind of sensitive, what I do is loop through the DGV, add or substract the % engtered in the corresponding column and ask for a confirmation after whole DGV loop is done. If user agrees, DB is updated with new values. No problem here.
If user denies (in case he/she made a mistake), I restore grid's DataSource to a copy I made before calculating new percentages and this automatically refreshes my grid to its original state.
The issue is that if a user denies the operation for a 2nd time, this 2nd execution of the code fails at showing the original values, disabling the pseudo-rollback function.
Here is the code: . . . If MessageBox.Show(mensaje, "Actualizo", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) = DialogResult.Yes Then
[Code]...
remember this works OK if user denis once. What am I missing regarding DataSources or its Tables? Is there anything like .Redraw?
Btw, I tried update, refresh and I also used a sleep function (this helped me a few times back in VB6...).
I've been using Classic ASP for years and just switching over to .net. So far, I'm not having much fun, but I'm trying and I'm not going to quit. One of the small pieces I am struggling with is running a query then, updating the record.
update table1 set rating=@rate where User1=@userid / user2=@userid
so i need to write a single query which satisfy the condition for both the users user1 and user2.if i pass the @userid ,if it matches the user's id it should update user1 record. if the id whcih i pass is user2's id then it should update the user2 rec.How to check for this condition in a single query...
I want to UPDATE query instead INSERT INTO using this code?
Dim cmd As New OleDbCommand("INSERT INTO tblPurchase_Order ([Order_Id],[Supplier_Id],[Address],[Project_Id],[dtpDate],[Material_Id],[Material_Name],[Unit],[Quantity],[Unit_Price],[Amount]) VALUES (@Order_Id,@Supplier_Id,@Address,@Project_Id,@dtpDate,@Material_Id,@Material_Name,@Unit,@Quantity,@Unit_Price,@Amount)", conn)
I have this query which I want to submit after the user click a button.
Update tbl_books Set Bk_Rent = Bk_Rent - 1 Bk_Avl = Bk_Avl + 1 Where Bk_Id = ( Select * from tbl_transactions where Trans_Id = @a )
The problem is as far as I know, Update and Select queries have different formats. Update statements will use the ExecuteNonQuery()while Select needs a dataset. My problem is how can I execute these two statements at the same time. I tried this code but it didn't work out.
Dim command4 As New OleDb.OleDbCommand Dim adapter4 As New OleDb.OleDbDataAdapter Dim dataset As New DataSet
For some reason every time I execute the code, it gives me the error "No value given for one or more required parameters" and it points to the ExecuteNonQuery. Below is the relevant code I have.
Public Function sqlUpdate(ByVal varBalance As Double, ByVal varWithdrawlAmount As Double) As Double Dim dbCon As New OleDb.OleDbConnection dbCon.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = dbATM.mdb" Dim query As String Dim cmdUpdate As New OleDb.OleDbCommand dbCon.Open() varBalance = varBalance -
As you may have seen in my other post, I have to switch over an all text SQL statement based database interaction program to using parameterized queries instead.I remember doing it this way in college but I don't seem to be able to recall one part of it. The program I wrote back then and some code samples here both point to doing the code as I did so far:
m_strSQL = "UPDATE [OWNER DATA] SET [FIRST NAME] = @strFName" m_strSQL &= ",[LAST NAME] = @strLName" Dim upCMD As New OleDb.OleDbCommand(m_strSQL, m_Connection) upCMD.Parameters.Add("@strFName", OleDb.OleDbType.Char, 30, "[First Name]")
[Code]...
it ran the SQL statement and that's that. Can I just do that with a parameterized query too without using the adapter.update()? And for bonus points, why the heck did I use that command in my old college program cuz I sure don't know?