I have an interesting problem. I need to write a program that checks to see if data has been inserted or updated into a Microsoft access database . The program needs to be compatible with both types of access database, so using triggers is not possible as it wont work in access etc
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I have looked through the entire internet (well that's what it feels like) to find this out.Tables - Authors and Titles add new title must be linked to an author, so I need to check that the author exists, if so, update the titles table with the user data from the textboxes. If the author does not exist, I need to insert the author first & last name into the author table, then the title info into the title table.this is in VB, using ASP.NET, and my database is a file, I'm not using SQL server, just Visual Studio 2008.
Dim insertParameters As New ListDictionary()
insertParameters.Add("ISBN", ISBNTextBox.Text)
insertParameters.Add("Title", titleTextBox.Text)
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I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
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how to insert and update the data to the database when i am using window forms?
View 3 Repliesi has one problem in which i can enter some of a data to the database.Ho can i code this things..i used Insert and update query....the value is type double,integer...and also string.....
View 1 Repliesright now i'm trying to google some related article about LINQ to better understand it. But I came across with this issue been googling to find some answer but I didn't get lucky so here my problem.
For Each lvItem As ListViewItem In lv_orderlist.Items
passSQL = "INSERT INTO t_selling_history (f_product_id_fk, f_qty, f_qty, f_user_id_fk, f_created_dt, f_trans_status)" _
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I am using VB.NET 2010 and SQL Sever CE 3.5 database. I insert some data into my database (SDF file) and I can do any all manipulations with those data. But I cannot see those data in the data table using Data Source or Server Explorer in Visual Studio. Even If I check it once in Server Explorer, all data in the database will be deleted.
View 1 RepliesI have made a small form where I have bound textbox with records from database.Although my code for inserting and updating the record seems fine and working. But when I view the database, tables i see no inserts/updates made there. But When I run my application again, I see the records in the bound textbox but only for some seconds (for around 1 and half minutes), although they are not shown in the database (tables) actually.
When I close the application and run again it after 1-2 minutes there are no more records bound to the textbox, since no records at all.How can this be possible. I don't have any idea what's going on.
I have been using visual studio 2008 and sql server.Code I have been using for ::
'Update the Records Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
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How do i check if the command insert new data in my ms access database this is my code so far.[code]...
View 12 RepliesI wrote simple update/insert statements that are returning a syntax error, what am I missing? The table name is notes, the field note is type memo, acaps is a double. update notes set note='why is there a syntax error' where acaps=12345
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i have an datagridview bound to an access database, the table is empty so i want to use the datagridview to insert and update data to the database.so if i enter a complete row of data, i have an update button that looks like this
vb Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim tableAdapter As HEALTHDataSetTableAdapters = New HEALTHDataSetTableAdapters.HEALTHDATATableAdapter()
tableAdapter.Update(HEALTHDataSet)
End Sub
I am using this code to Add rows to a SQL database, and it adds the row to the SQL database if column 7 is not null. After it adds the row to the SQL database, it deletes it from the Access Dataset, and updates the Access Database. Sometimes double rows seem to get inserted into the database, so I'm thinking there is an error in my logic somewhere here.
Dim rowcount As Integer = AccessDataSet.AccessTbl.Rows.Count
Dim y As Integer = 0
For x = 0 To rowcount - 1
txtRow = AccessDataSet.AccessTbl(y)
If IsDBNull(txtRow(7)) = False Then
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I am writing an application that does a number of different things with data downloaded from hardware which is monitoring the power used in my home and produced by my PV Solar array. I have run into a roadblock early on, because I cannot seem to get new data into an Access database that I have linked to my application by means of a DataSet. I have checked the DataAdapter's InsertCommand, DeleteCommand, and UpdateCommand definitions (created by the DataSet Wizard), and they seem to make sense, and nothing is throwing exceptions or otherwise making VB complain, but new rows added to the dataset are not being added to the database.
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how to add, insert, delete and search data in vb 2008 using mysql databases.
View 1 RepliesI got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
I have a gridview that is set to a sql datasource, it is generating the columns automatically. If I add a column to the table it is referencing, it will draw that column and display it, but it does not update the insert/update commands to include the new column. Is there any way have it rebuild those commands automatically?
View 1 RepliesI have a gridview in which when I click edit, update, and cancel button comes. I have a variable named status. If status=false then update should change to insert and if status=true then update should be update itself.
<asp:TemplateField >
<ItemTemplate>
<asp:LinkButton ID="lnkEdit" runat="server" CommandName="Edit" Text="Edit">
</asp:LinkButton>
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I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code.
So that I can understand eassily.
could someone tell me what i am doing wrong in this codeProtected Sub insert_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Insert.Click
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Visual Studio 2008VB.NETFramework 3.5Windows Application
I have a SQL database names TestSQLVB
In it a table called tblTest2, with a three fieldstest2id , int, pk, increment by 1field1, varchar(50)field2, varchar(50)
I have a dataset named Dataset2.xsd
A tableadapter named tblTest2TableAdapter
A insert query names InsertTest2 with fields @f1, @f2 and ExecuteMode = Scalar
When I run the following code per MSDN [URL] the database does not get updated.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim testds As New DataSet2TableAdapters.tbltest2TableAdaptertestds.InsertTest2("One", "Dog")
End Sub
im in the middle of doing sql queries i can search my data base usingGetDateFrom (Select, from, where) Me.nameTableAdapter.FillBy(namenDataSet.descip, Me.box1TextBox.Text,Me.box1TextBox.Text, Me.box2TextBox.Text, Me.box2TextBox.Text)i have this working fine im struggling with inderting data to my databse i have made the query ..
INSERT INTO `details` (`Forename`, `Surname`, `Username`, `Password`)
VALUES (''& ForenameTextBox.Text &'', ''& SunameTextBox.Text &'', ''& UsernameTextBox &'', ''& PasswordTextBox &'')
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This is my problem.I have a field set up in MS Access to Boolean YES/NO, this field is populated when the user check a checkbox on a windows form. If the user check a checkbox, the value is written as checked in the data field (MS Access).The problem is when I search for the user information, I need the information from the Data base to populate(return) to the windows form. Example: If I enter a users phone number and the user data is present, the form gets populated with the information the user previously entered which was store in the database.Example: If the user selected checkbox1 and submits the form. When I search for the user info, the check box should check(populate) because the user had checked it on submit.Here is what I have done:
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I am getting the check value correctly in the database using a Boolean.Here is one of the errors I am getting. Unable to cast object of type
'System.Boolean' to type 'System.Windows.Forms.CheckBox.I am having trouble putting the codes in a code tag or block
My application is like this : i have to search my data from database with some check box and text box when user select check box specific function go on and then when user enters some range of value in textbox then the result will shown in data grid view after that i can print it by selecting data
my vb.net code is as follow:
Imports System.Data
Imports System.Data.SqlClient
Public Class XtraForm1
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I m also pasting the demo picture.
update statement, i am trying to update a row within a access 2007 database here is my code.
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Details: I want to compare these above two table1 and 2 . The unmatched records should be save in a new table .
objectives
1 Should take input the table and fields we want to match each other.
2 Then after searching or reading the record from table and selected fields save the unmatch records in a new table
I am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 Replieshi there,first of i know nothing at all and my goal is to make a app for xp to check a database and check/patch a iso and then to burn the result to dvd-dl, basically like a app called abgx360 checks the database then like xbox backup creator burns the game, i'd like to make a app to do both, i'm going to college next year in september to learn programing c+ andf a few other things, but thats a longtime away.
View 14 RepliesI have a Boolean that writes to a data field. The data field(column) is set to YES/NO, if the user check a checkbox, the value is written as check in the data field.The problem is when I search for the user information, I need to get to form to the state it was in when the user submitted it.
Example: If the use select checkbox1 and submits the form. When I search the form, I need to make that particular check box check.
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What is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
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In the below code I want to also check before inserting if that record exists or
Dim conn As New SqlConnection("xxxxx")
Try
conn.Open()
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