I have ALWAYS used the SQLDataSource to update my records in my SQL Server 2005 database, so i am not really sure how this would be done in normal code. I am using VB.NET but if you are a C# developer and want to show me some code that is more than welcome as well.
I am using ASP.NET 3.5.My user will see a page with 5 Text boxes with their contact details in. Those details I will get from a SQL Server DB and when they go and change the text in the text box and click submit, it must then save the changes.
This is very easy with the SQLDataSource but how can i code this myself?
I can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on [code] I get this error when I change the Last Name (Row 0, Column 1). [code]
I have a web portal designed in ASP.NET in which we ask customers to enter the data. On the click of submit button all i have done is, just read the data and called a stored procedure which inserts that into a table. There seems to be a problem in SQL Server 2005 while inserting the data from multiple computers at the same time. We have tested in our lab with three computers, result is that we get the data inserted successfully in only one machine and on the other two machines we get error on page. I have used transactions in the stored procedure and also tried setting the isolation levels to READ_UNCOMMITTED, SERIALIZABLE and SNAPSHOT. Nothing seems to work properly.
As part of the application I'm writing in Visual Basic, I have written code to display records in text boxes and cycle through each of them one record at a time. I'm having trouble getting the code I've written to update records to work however. I am new to this however, so I'm sure I've made an obviously glaring error that you more experienced people can point out for me:
Public Class frmRecords ' VARIABLES TO AID NAVIGATION THROUGH RECORDS Dim moverow As Integer
Erm I am still a freshman who still learning Visual Basic and I'm currently facing a problem regarding adding a new record and updating my database records in the form, or the whole project.
If MessageBox.Show("Do you want to save the data?", "", MessageBoxButtons.YesNo) = DialogResult.Yes Then Me.ArtistsBindingSource.AddNew()
I am trying to update a link table with values from multiple datagrids, the field types in the link table are numbers and the value selected from the datagrids are also numbers.
I am getting the following error:
The OleDbParameterCollection only accepts non-null OleDbParameter type objects, not String objects.
In line : cmdCompany.Parameters.Add("@COMPANY_ID")
I am trying to update a databse using a grid control, I've enetered multiple rows in the row and tried to save the data, unfortunately I'm only saving the last row entered, is there a way to save all the rows entered using this approach?
Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|aop29.mdb" Dim objConnection As New OleDb.OleDbConnection(ConnectionString) Dim sql As String = "Select * from Customer" Dim daaop5 As New OleDb.OleDbDataAdapter(sql, objConnection) Dim ds As New DataSet() [Code] .....
I am trying to update a databse using a grid control, I've entered multiple rows in the row and tried to save the data, unfortunately I'm only saving the last row entered, is there a way to save all the rows entered using this approach?
Code: Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=/DataDirectory/aop29.mdb" Dim objConnection As New
i have made a database windows forms application, i can add records, when i add a record , fill out a few fields then save it saves OK but if i then change some fields data then try to re-save i get a error: object reference not set to an instance of an object.
the code that is highlighted is:
Private Function GetRowData(ByVal custRow As calllogDataSet.CALLLOGRow, ByVal RowVersion As Data.DataRowVersion) As String Dim rowData As String = ""
All i'm tring to do is connect to my MysQL database on my Local host and update a record in my "customers" Table. The Error i've been getting is under Public Sub DeactivateAccount,the MyCommand.ExecuteNonQuery() line of the code. The error is saying there is "no database selected". Below is the code i have.
Imports MySql.Data.MySqlClient Public Class FinalFailedPinNumberAttempt Dim connectionstring As String = "Server=localhost;user id=root;Password=;
I want to use a progressbar to show that I'm retrieving the records from the database so that the user wont be confuse if the program is still running or not. Here's my code.
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load cs = "Initial Catalog = KRADB; Data Source = .; User id = lab; Password = 'clrscr2010'" sqlcon = New SqlConnection(cs) sqlcon.Open()
in my windows application i am retrieving the recently modified data from warehouse database server using static ip suppose two columns empno,designation from emp table in this i am retrieving the recently designation modified employees and in my local server database also i have emp table with all employee details which are in warehouse database now i have the designation modified emp details using this i want to update that designation details in the local emp table to that related employees only not all employees designation actually the records may be more than lakhs records some times i have to update 100 record some times thousands records if i am using loop it takes more time?
I know that when I add a record to a table through a binding source using a binding navigator - it completely handles the IDENTITY PK (it's bound to a textbox and you can see it immediately).
Now I'm trying to do this differently in another part of the program - here I only have a BINDING SOURCE - that's bound to a DATAGRIDVIEW.
I put a new record into the DGV like this
Private Sub vendorfilesDGV_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles vendorfilesDGV.DragDrop If e.Data.GetDataPresent(DataFormats.FileDrop) Then
I am new to VB.net and want to know how I can execute SQL queries from within VB.net code. Example: I want to update some records in a table using SQL query on the Form Load event.
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.
I'm writing a time entry program to record when an employee checks in and when they check out.I'm struggling on the part where I need to calculate a time span (time out / time in). I am selecting the In Time, Out Time, and Total columns.I want it to take the Out Time subtract it from the In Time and place that value in the Total column.I have so far and have tried several variations of different updates but have had no luck.[code]I keep getting a syntax error in the UPDATE statment.I'm not very fluent with OleDB yet and I'm not sure if I'm doing the update correctly.I have no problem with OleDB and single UPDATES or single field updates but when I am updating multiple rows with different values.
May I ask a question to you all.I have vb.net project that generate sales report from SQL Server Database.I changed SQL Server 2005 Express to SQL Server 2005 Standard Edition.
After that my program can't run properly and every time I got Time Out Expire message.
That program work properly with SQL Server 2005 Express.May I request suggestion how to fix this.
I am updating some apps because the server will be replaced very shortly.The apps were created in VS 2005 and upgraded to vs2008.For some reason. my update command does not seem to work when I changed over to the new server.All settings that I have are pointing to the new server. The table Adapter has been updated to reflect the change too.I'm able to add a record to the table - I'm using this in my code:
nd got stuck with slight problem. i just wonder how can i update a certain column in the sql server database when application forms gets started.This code below updates all the records when forms loads but i need to make it specific one. in this case, i would like to have update button to update/modify the existing one.
vb.net Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
I believe my problem is fairly simple, and not uncommon among programmers switching from VBA (Access) to the big leagues (SQL Server / VB.NET). I'm using a 30-day trial version of Visual Studio 2008 and SQL Server 2005.
Now, I've created a form with a datagridview control that pulls information from my database on the SQL Server, and I use this code to put the changes back to the database. This code works perfectly:
Private Sub frmTrendsPlanningList_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing Dim command_builder As New SqlCommandBuilder command_builder = New SqlCommandBuilder(daTrends)
theyI had a asp.net (vb) web application to store work overtime (OT) records. In SQL server, the OT table likes this, e.g.:
[Code]...
As user will input previous date OT records, so the records in db will not be in sequence. the date of records#14 is before records#13. if user want to know which OT records cover the last 2 hours, the system should retrieve record #15 (90mins) & #13 (30mins) because they covers the final 2 hours. How to write the SQL statement to retrieve the records?
Here is what I'm working with: Dim connstr = "data source=mydatasource;initial catalog=gcs_dw;persist security info=True;user id=myuser;password=mypassword;Asynchronous Processing=True" Dim sqlquery = "SELECT * FROM Customer WHERE CITY = 'Anytown'" Dim connection As SqlConnection = New SqlConnection(connstr) connection.Open() [Code] ..... As you can see, I'm attempting to display the results of the query to the commandline and currently all it is displaying is "System.Data.SqlClient.SqlDataReader". Where are the results of my sql query going and why can't I retrieve them?
the total number of records for the previous day where the feed is, 1, 3 and 5 i.e.the feeds I need to retrieve totals for will just be selected based on what I need for instance it could be box4 and box 5...not specifically odd and even...I hope this makes it more clearer..what I have for all records:
select sum(count) as [total] from PostTable where Cast(dateinserted as DATE) = CAST(getdate()-1 as DATE)
I am using Visual Studio 2008 for creating a Winforms app. I have connected a database to it called XStats. There is one table in it called XGames and in that table 2 fields, XIndex (the primary key field) and GameNumber. Using the following code I can add records to the database, the data is taken from a text box, but once added I cannot view them unless I shut down the app and restart it.
con.ConnectionString = connectionString con.Open() Dim cmd As New SqlCommand
[Code]....
The existing records in the database are displayed on the form in detailed view via a binding navigator. How can I make it so that I can view all the records in the database, even those that are added during the current session. As will be obvious, this is my first attempt at creating and using a database with a win forms app,
want to create pie chart which show me number of records(in %) in databse of perticular item i don't know how many distinct records and their name.I just wants to fire a query which scan database for distinct record name & how many time that record is in database.First time it find A,B,C,D are distinct record then it count how many time A,B,C,D record are found in database according those number it will able to create pie chart which will shows the number occerances of pericular item in
