I Use visual Basic 8.0 and Mysql 5.0 I have one Table1:
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I want to use Datagridview to update Mysql table1. All changes as update, change, delete automatically processed into Mysql table1. Here by my code
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How can I update local dataset with mysql database without making duplicates. Assuming I set some column in mysql as primary key, which has unique string.
adapter.fill will just add duplicates, but adapter.clear before that is not an option.
So I want to update if the key column is the same with mysql data and if there is option for ignore adding new row.
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?
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I have built a dataview where i display data information from tables which was created in MySQL. Can i update the datagrid cells by just clicking it and entering new information ? By updating the datagrid cells, will it automatically the relevant database tables ? If yes, how do i go about writing codes. All the cells now just consist of text format data.
View 11 RepliesI have a DataGridView filled from the MySQL database table. I want the changes made on the datagridview records, update the table when a Save Changes button pressed. Here's my code which takes the data from the database and adds to the DataGridView.
Private Sub cihazmodeli_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cihazmodeli.SelectedIndexChanged
'Loads database records to Datagridview
If Not CStr(cihazmodeli.SelectedItem.Value) = "" Then
Dim sorgu As String = "Select
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I searched internet including this forums to find a working example about the following subject but couldn't find a solution about my problem.I have two main problems:1) I have a DataGridView filled from the MySQL database table. I want code update the changed records, when a "Save Changes" button pressed by the user.I created the code below to make it. It makes update on the changed row, but enters Null values. So after the update on the database, the values become null.2) At "Private Sub cihazmodeli_SelectedIndexChanged" section my code reads the database and loads the values to the DataGridView. When I make another change on the Combobox, it adds the values of the new SQL results at the bottom of the previous records. I tried to clean the results using either Clear() or some other methods but got a message meaning "Content entered with DataSource can not be cleaned with Clear or other methods". What is the way of clearing the previous choice's records?
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Dim cn As New MySqlConnection("Data Source=localhost;Database=stokprogrami;User ID=root;Password=mypassword;")
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I'm creating a really simple app that connects to a SQL Server 2005 data sourceThere is a DataGridView component that binds to a single table. The data pulls up just fine, and I am able to add and edit records in the grid, however, it does not actually update the tables.
View 4 Repliesdatabase: 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:
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I am having trouble setting up an application that uses DataGridView to update the publishers table from a pubs.mdf database. And I need to make sure that all fields that might throw an exception are being validated.
View 3 RepliesI have this
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which is supposed to get all the data from my table and set it as the datasource of a DataGridView. You can see where I put in two msgbox's to view how many columns are in the DGV before and after the "update". The first count gives me 22, which is the correct number. After the .DataSource and .DataMember lines are ran, the count jumps to 41 and I have no clue why. All I want to do is clear a dataset, fill it with the new data and set it as the data source of a datagridview. It appears the info is being saved to the table correctly too.
How to update data in a table bound to a datagridview? Using Visual Basic 8.
View 1 RepliesI have a DataGridView bound to a data table. I have one column where I permit updates. After I fill the table (at form load), I make an update to this column Then I attempt to update the change back to the bound table. I get the error 'Update requires a valid Updatecommand when passed dataRow collection with modified rows'. I have seen some examples on-line to define, load, and update but since I have the generated datagridview with bindings, shouldn't the update method me a simple 1-liner? [Code]
View 2 RepliesHow to update a record database table from unbound datagridview using vb.net
View 7 RepliesI am developing a Windows Forms Based Application using dbo.database and Visual Basic: I populate some Orders in DataGridView1 using LINQ 2 SQL from "tbl_Orders" where OrderStatus is "Pending". I change OrderStatus Column Type to "CheckBox" in DataGridView, Now I want that when I select some records (Orders) by checking respective checkboxes and click on "btn_UpdateStatus" Button, program pick OrderID's of only selected orders and update OrderStatus of Only selected Records (Orders) from "Pending" to "Completed" in Database Table "tbl_Orders" and DataGridView1 should be Refreshed. [code]
View 1 RepliesHow do you insert/update in a datagridview which is 2 table is bound into it (inner join statement)Best Regards,Iannoob vb programmer
View 1 RepliesMy problem is with the tickets table, I have listed the user that created the ticket, the tech who will solve the ticket and a user that over sees the ticket. All three users reference the users table. So how do I can I query the tickets table and get all three users that reference the same table storing the users?
Table1: Tickets
1) Ticketnumber
2) EnteredBy User 100
3) Issue
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What I can do now is something like this:
Select Ticketnumber, EnteredBy, Issue, UserName FROM Tickets INNER JOIN Users
ON Tickets.EnteredBy = Users.UserID
Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
View 8 RepliesI have this code to edit the datarow of my table adapter but t doesnt update the table. I think i have a missing code that's why but i cant figured it out. by the way im using vb2008 and SQL as my database. [code]
View 3 RepliesI have a project which contains a large number of lookup tables, and I have all of these lookup tables represented in a single typed DataSet, which contains TableAdapters for each lookup. I've designed an editor for these lookup tables, which should allow editing of one of these at a time. My front-end is written in VB and WinForms, the back-end is a SOAP web service; I can successfully pass the changes to the DataSet back to the web service, but can't find a way to use a TableAdapter to update the single table that has been changed.
What I'm trying to do is instantiate the appropriate TableAdapter for the updated DataTable by sending the name of the table back to the web service along with the DataSet, then referring to the TableAdapter with a dynamic name. The normal way to instantiate a TableAdapter is this:
Dim ta As New dsLookupsTableAdapters.tlkpMyTableTableAdapter
What I'd like to do is this, but of course it doesn't work:
strTableName = "tlkpMyTable"
Dim ta As New dsLookupsTableAdapters(strTableName & "TableAdapter")
Is there any way to achieve this, or am I taking the wrong approach altogether? My other alternative is to write separate code for each table, which I'd prefer to avoid!
An unhandled exception of type 'System.InvalidOperationException' occurred in system.windows.forms.dllerror in line: dbAdp.Update(dbDset) in btnSave_Click, (elseif editflag = true) blockdescription: Update unable to find TableMapping['Table'] or DataTable 'Table'I was also wondering if I could simply use the ExecuteNonQuery for the delete statement, but since I've placed my data in a datarow, I'm not sure if i can actually use it. Any thoughts on this? Btw, this is my first time using a datarow, and I've recently been studying how to use ADO.net.
dr = dbDset.Tables(0).Rows(CurIndex)
dr.Delete()
dbAdp.Update(dbDset.Tables("addresses"))
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While am using the below code it was throwing an exception update unable to find table mapping [Customer] or data table customer.
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i able to insert the table but i unable update to another table at the same time
my
Imports System.Data
Imports System.Data.OleDb
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Ok so I have a Mysql dsetup called in-out and I have written a vb.net client program to get information from the table in the database, display it in a data grid view, and then allow to user to edit this information and update it on the server. Right now I am hosting the server on my Gateway laptop and also connecting to it from the same laptop therefore I'm using localhost as the server name. My problem is that when I go into the program and change the information and click update, nothing happens... the information stays the same yet there is no sign of an error, syntax failure, or program crash.
I've tried running this on another computer in my house and i get the same results. I can access the information without a hitch but updating it is where I run into trouble. If there was a problem with my code it would have displayed some sort of error or asked me to debug my script, which would have made it a lot easier to solve, therefore i am certain that it has something to do with my database. Before I got to this step, i kept getting an error when retrieving the information that said something like
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I have been trying to update my database I only receive a msg box replyng that my msg is successfull updated but when i check my database no data is being saved!
here is my code for update
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Here is my changePassword button code where I call the method UpdateDB:[b]
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I am having two tables with a similar structure. I want a code to select data from one table and update the same in second table and then delete the records in the first table.
View 6 RepliesI need to Update Access Database Table with Data from a Different Table. Not all the rows of original Table to be Updated will be affected. How do you loop through the 2 Tables to do the required Update.
The Table to be updated is called "RecordList" and Table with new Data is called "RecListReport".Every attempt I've made won't work. I tried to Use 2 Datagridviews but couldn't get it to work right.
NewTestConn()
Dim Testconn2 As New OleDbConnection(NewTestConn1)
Dim da As New OleDbDataAdapter
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I have a program, that on form load, updates a value. The problem is, that it doesn't work!
my
Imports MySql.Data.MySqlClient
Public Class Form1
Dim MysqlConn As MySqlConnection
Dim UserCommand As New MySqlCommand
Dim SQL As String
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And the problem is that it doesn't update the points. I set the points to 10 via PHPmyadmin, and run the program, but when i go back to PHPmyadmin, its still 10.
i have problem to search and update record database sql. this is my code. i using mysql database and Microsoft Visual Basic 2008
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but i have error on Word command.ExecuteNonQuery(): MySqlException was unhandled. There is already an open DataReader associated with this Connection which must be closed first
I am trying to update a field in my MySQL database using VB.NET.....
Basically, I can read the field's content, using this code:
SQL = "SELECT * FROM `boomtable` WHERE `Tab1` = 'CLOSED'"
However, I want to update the Tab1 field to have the value OPEN if it's currently closed, and make the value CLOSED if it's currently OPEN.. Right now, it's CLOSED, (I put the value in manually when making my table)
Here is the code I'm using that changes my label based on the Tab1 field's value that works fine... Except I want to actually make it update the field in the database in addition to changing the label text.[code]...
I am trying to update mysql table from a txt file using vb.net. So far I've found code here and there and been able to extract the data from the txt file, now my question is how to update mysql from the same dataset or xml file. Here is my code to populate the datagrid/dataset/xml file.what is the easiest way to update mysql assuming "Orden" is my primary key in mysql.
OpenFileDialog1.Filter = "Text File|*.txt"
OpenFileDialog1.Title = "Open File..."
OpenFileDialog1.FileName = "trackings"
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