i have a datagridview with (a lot of) rows. With a click of a button I add them into a table. Everything works fine. I want to create a log of the records that have been added into the table.
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Create a class to deal with records from the Classes table, much like the Student class we created in Lecture #17 handles Students records. The name of the class should be Ualb_Class (note we cannot use Class, as it is a reserved word in VBA). All of the fields should have corresponding properties. There are few considerations:
The class (course) code, department code, and course number are set at Initialize, so there is only a Get property method for those
The property for Meeting Day only accepts one of the values defined in the table. You can decide whether to accept an integer value or a string value of the days represented.
You are also to code the Initialize method, much like we coded the Initialize method for the Student class in Lecture #17. In the Initialize method, you will use the InputBox function to obtain the department code and course number. use a different InputBox for each value, so you don't have to mess with separating the single text value returned from that function. The Course Code will be obtained by using a function that has already been created, called GetNewCourseID. It has no parameters.
TABLE: Classes
Field Name
Data type
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I am woking on an application in which records of a table are stored in another table. In case of duplicate records they will not wriiten to the table and they should be written in a log file.
View 1 RepliesI have a database with 3 tables: Student, Unavailability and Duty.The fields for Student are entered in a form I have. One of the fields in Unavailability is filled by a form, the other fields are an autonumber and a foreign key to the Student table.ow I want records in the Duty table to be created and automatically filled in depending on what the values of the fields are in the Student table.For example, If the Boarder field in the Student table is 'yes' then I want the Duty Number field in the Duty table to be '1', '3' and '4'. If it is 'no' then I want the value to be '2' and '5'. I recognize it will have to create several different records to incorporate the different duty numbers for each StudentID. Obviously this will require an if statement, however this is my first time implementing a database with my limited experience with programming and Visual Basic, so I don't know how to refer to the specific fields in a table and set the value of other fields depending on the data in other fields.
View 6 RepliesI added a table to my Access database. I added that table to my dataset. Using Database Designer VB Studio, my table and tableadapter show up in the design view. The class definition is in the datasetdesigner.vb, and it shows in the object browser. But, I can't reference it in code. I am a newby and obviously missing somethning.
View 1 RepliesI have this piece of code wich works perfectly when inserting records into one table using records from another table. My question is that now i need to create another table by using records from 3 other tables (tables are related). Can i use aliases on the column names, like on Oracle SqlPlus? How will be the syntax of the 'INSERT INTO SQL statement?
Dim MyConn As ADODB.Connection
Dim MyRecSet As ADODB.Recordset
Dim tmpSQL As String
MyConn = New ADODB.Connection
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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.
View 3 RepliesI'm trying to build a new customer data entry page for a db project. One of the features I would like to add is a way to check and see if there have been any new records that have been added that haven't been explicitly saved to the db. If so, when the form_closing events fires I want to evaluate whether or not new entries have been made that weren't saved, and then count the number of rows that haven't been saved.
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I've created a database in Access 2007 and connected it to Visual Basic 2008. My database have tables Coachee and Coach. Details of Coachee are displayed in one form and there's a button that when clicked will show details of the Coach of that particular Coachee in a another form. If the Coach is not in database, user will be prompt to insert a new Coach record. Problem is, when saved, the newly inserted record will not be displayed and i have to exit and rerun the program, only then the record will be displayed.
View 7 RepliesI'm working on a simple data logging program, and I have little to no database experience. I wrote a little VB forms app to log the data to ms access and then graph the data, but I'm having trouble with adding records to the database. First, I created a simple one table database in access. Then, I added the database to the project as a data source, and gave it a data set using the wizard. Right now my code looks like this:
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There are no problems during build or run time, but I do not see changes to database after the program runs.
I do this in Oracle databases just in a snap, but now I have to do it in VB using ADODB and I don't know how to do it.
I have two Access 2007 tables. Table A contains: Col1 (text), Col2 (text), Col3(date), Col4(amount), Col5(text)
Table B contains Col1(date), Col2(amount) What I need to do is to insert into table B the records of table A (col4 summed) grouped by date of table A. The date is a variable contained in a text box so it cannot be hardcoded into the SQL statement.
I'm creating an application that notifies users if a new row has been added to a table in the applications database. Would it be best to create a trigger for this or just check every few seconds directly from the application?
View 5 Repliesjust wondering how do i transfer table's records to another table??i'm wondering where do i put the queries, or am i gonna put it in my stored proc?
View 3 RepliesAccess <asp:table> table rows added by javascript in asp.net webform . Apologies for the duplicate question but I'd really like an explanation why this is the case. It is probably due to my lack of understanding on how browsers process HTML tables on submission to the server.If I have a <HTML> table or an <asp:table> control on an aspx page and I add rows to it client-side using JQuery / Javascript, why can I not include these added rows in a post-back to the server?
I've been trying to get this to work and it looks like I can't do it based on the answer to the previous question. But can someone explain why this is the case? The table itself can be returned in the post-back but the only rows present are the rows that were part of the table when it was sent to the browser originally - it does not include the rows added by the browser.there was a way to include these new rows in the post-back, the same as any client-side user input?
I am getting an incorrect repsonse after an update to a table. In my RowUpdating event I have the following code which builds an Update Parameter to call an SP to update a table. I must be doing something wrong but everything runs fine. My rowsAffected variable reports 1 after the update, but the table never gets the data.[code]I found a solution that is working. On the original DataSource for the update command I needed to add the following.[code]This in essence allows the original data source to call the SP. Note: that the command type needs to stay as TEXT not Stored Procedure as one might think.
View 3 RepliesI have 2 tables one is called Product Table and the other is called item table the item table is in gridview I can get the product primary key into the itemtable using a comb box but how do i read the rest of the information for that record into the item table from the product table.
View 2 RepliesI'm using VB.net 2008 and I just want to know the syntax or the command that gets the number of records in a table.I saw numerous syntax on the net like this
count = " SELECT count (*) FROM payroll_table "
but it doesn't work for me.
I try to delete all record in a table (.mdb msaccess) and I have the next code:
Me.Validate()
Me.Db1DataSet.Tables("tabl").Clear()
Me.TablAdapter.Update(Me.Db1DataSet.Tables("tabl"))
Me.Db1DataSet.AcceptChanges()...
But this don't change my table...
a.Create a database named "techdb" and create a table as "Personal" with Employee No, Name , Age & Salary
b.Insert 2 records to the table
c.Design a form in VB.NET e to Add, delete and Update records
I am a asp.net convert to VB.net and very new to VB.net(visual studio) I am trying to insert some records int a table. It seems the same code in asp.net does not work in VB.net. Here is an example of what I am trying to do
Dim Conn as New SqlClient.SqlConnection
Dim cmd as Ne SqlClient.SqlCommand
Conn.ConnectionString = "Data Soure......yada yada yada..."
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I'm getting an exception error when trying to insert a record to a SQL table in VB.NET. Following is my insert command.
cmd.CommandText = "INSERT INTO RunnerDB VALUES ('" & txtLast.Text & "', '" & txtFirst.Text & "', '" & txtMiddle.Text & "', '" & txtAddr1.Text & "', '" & txtAddr2.Text & "', '" & txtCity.Text & "', '" & cmbState.SelectedValue & "', '" & Integer.Parse(txtZip.Text)
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cmd.ExecuteNonQuery()
I am getting the error on the cmd.ExecuteNonQuery()...it says: Syntax Error near ','. I can't find the problem.
im working on views that can help me navigate through records in a table. i have managed to execute an sql string to select the table i.e "select * from Users".i however want to build a "Previous" and "Next" command on the view but im mixed up on the navigation [code] Now all i need is code for going forward or backwards to a record.
View 1 Replieshow would I go about creating a payment schedule based on a date and a number of months 3 or 6 or 12 to then populate the database with reoccurring dates so lets say new user added on 31/10/2011 for 6 months I need the database to add all the dates for the six months
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I want to return the top 5 records of a table in a dataset for datagrid view. The following does not work.
DataGridView.DataSource = DS.Tables("TABLENAME").Select("SELECT TOP 5")
Programmatically using vb.net, could we export all records of a sql table into a txt file at once?
View 1 Repliescopying some record from a table in the same table,changing only the fields of the data(month);- copy last month record fields, and the new records have to date, last month+1(actualy month);- i wish to be a button, like update or copy, to do this;- new filds are added every month;- how i do that?
View 16 RepliesIs it possible to have a quick and easy way of retrieving the last 10 records from a table?
Currently what I have been doing is retrieving all the records then one-by-one cylcing through each record until I have the last 10. To me this seems to have a lot of over-head reading each record. I just wondered if there was a quicker way of doing it.
I'm trying to connect foxpro table (dbf) to VB.NET. I'm trying to display the records of that table to listview in VB.NET. Here is my
I got an error message here, the error says "cannot open the file"
vb.net
Imports System.Data.SqlClient
Imports System.Data.OleDb
Public Class Form3
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Relatively new to VB.NET coding. Am creating a pretty simple console application that needs to insert over 50,000 records into an Oracle table (OleDB connection). I tried 3 different methods so far: Individual INSERT, insert using a dataset, & using INSERT ALL (commit every 25 records due to # of columns). It seemed like most articles/posts I read recommended the dataset approach, but the INSERT ALL code was definitely the fastest by far.
View 15 RepliesI would like to insert records a user selects from a gridview using check box column here is my code which inserts the first record then on the second interation it gives the error."The variable name '@Customer' has already been declared. Variable names must be unique within a query batch or stored procedure." [code]
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