I hope that someone help me , i have a form , a datagridview bound to datatable and a button named " Cancel "
What i want is when user add or change data in specific cell in current row in datagridview and click on a button " Cancel " the changes he made disapear (clear the row in case the user add new row ) or restoring original data when user makes change in existing data.i'm working with sql server 2008 database and visual basic 2010
I have a DataGridView in my VB.net Form. I need to make some rows invisible based on a value. As there is not GridviewrowdataBound, I am trying to achieve it as shown in the below Code
Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting[code].....
When I try to do this I am getting the Uncommitted new row cannot be made visible error.
I have a DGV bound to a data adapter. I have a button that loads a form with a reference to the DGV row. When the form is loaded, it has a TextBox to type a value, that modifies one of the cells of the row. When the form closes, the cell.value is properly modified, but saving the DGV doesn't save the new value of the cell to the DB table. I'm assuming this happens because the DGV hasn't had physical interaction. Also, this particular field is a password field, so the whole column is being hidden from the view.It seems that a DGV change is noted by physically clicking in a cell and it stores some data telling the adapter there have been changes. The thing is, this is done on a per cell basis, and only if the cell has been clicked. Well, this cell is hidden, so even though the value will be changed, you could never click or select that cell.Is there any other way to force the DGV to accept changes made to it from outside actions of just assigning the cell.value from a button click and not phsyically changing it in the DGV?
View 1 RepliesI key-in data from textbox to datagridvie..........the date data the format datatable is:
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I use a DataGridView to Add/Edit/Delete records from an Access database. Doing those 3 things is working just fine. When I try to update the database with the new Table data, nothing happens. I need to basically overwrite the table in the database with the data that was added, edited or deleted in the DataGridView. I opened the connection and got the table data like this
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I have created a form that contains a DataGridView with data from a SQL Database. After viewing, the user will want to update checkbox fields in a single column of the DataGridView This action needs to update the SQL Database. I have set the "ReadOnly" to false on all the columns of the form and placed an "Edit" button on the form which changes the ReadOnly Property to True on the Column where changes would be allowed. How do I then set the binding to update the Sql with the changes made by the user?
View 3 RepliesI'm curently trying to get information displayed in a listbox from a selection made in a datagridview. For example a user selects an artist from the treeview control and it displays all the albums by that artist in the datagridview. Once a user selects an album all information for that album is displayed below the datagridview in either a listbox or listview control. I've tried dragging the conrols from the datasource and it' won't drag onto the listbox. What do I need to do to get it so that it will display album, artist and track information?
View 9 RepliesI have a MS Access database file that I can view with a DataGridView, but I can not save the changes made. User should be able to modify data, and when pressing the "Save" button, these changes should be reflected on the database. That is not happening.I know this is a common question, but I have read dozens of pages trying yo get this to work.
Imports System.Data.OleDb
Public Class Form1
Dim con1 As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=T:JaimeTest.mdb;Persist Security Info=False")
Dim sql As String = "SELECT * FROM Table1"
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Im on project about database and I actually im facing 2 major problems.#1I made a form where the user can create a new record.Actually a new product like :
Public Class newgame'Dim cmd As OleDb.OleDbCommand = New OleDb.OleDbCommand("INSERT INTO clients(name,surname,address,phone home,mobile phone,e-mail,memo) VALUES (' " + TextBox1.Text + " ' , ' " + TextBox2.Text + " ',' " + TextBox3.Text + "','" + TextBox4.Text + "','" + TextBox5.Text + "','" +
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I have a page in which there are 3 sections.In the first section,i have some details to save in the Database.I am saving these details through a StoredProcedure(sql) named Procedure1.The details are stored in a table named Table1.There is a Primary key in the table named "ID".This "ID" is inserted automatically in the table.In the second and third sections, i have Grids for Data Manipulation.The Details are inserted in tables Table2 and Table3 through StoredProcedures(sql),Procedure2,Procedure3 recpectively.The "ID" which is generated automatically in Table1 needs to be inserted in Table2 and Table3.How can i do this?The Details in Table1 should get Rollback when corresponding data is not inserted in Table2 and Table3,ie. these 3 sections are to be inserted simultaneously.Now I have created a StoredProcedure in which i have combined all the 3 procedures.
View 1 Repliesmy concern is tht i have a application with mail for my intranet users. Now I wld like to rollback or undo my sent message within a short interval say bfore a minute , i can or should undo . But im confused where to start from .....i need u guyz to just show me the correct way , i will try and do it by ma self
View 1 RepliesI have 2 tables which I want to insert data into, table "CAM" and table "COut", after inserting data in "CAM" it shall return a retAutoID which will be hand to "COut" as one of the parameter required for it's insertion. I implemented a rollback in my Business Logic such that if "Cout" hits an exception error while inserting, the previous insertion for "CAM" will rollback even if successful.With the code below, I am getting this error after trying to do perform insertion:"ExecuteNonQuery requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized." [code]
View 2 RepliesI used code below to run rollback but in catch block, a warning message said that thistransaction used before has being assigned a value. How to void it?
Dim thisConnection As New SqlConnection("server=(local)SQLEXPRESS;" & _
"integrated security=sspi;database=MyDatabase")
Dim sql As String = "DELETE FROM Employee " & "WHERE ID = 10"
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I'm about to try something new in my VB2008 project, but not sure if it will work. Is it possible for me to set a "checkpoint" of the current solution code, so that I could "roll back" if necessary?
View 3 RepliesI am working on a Vb.Net application . I have a compose message web form where users will compose a message , but after the users click the send button I am inserting in the message table. All is working fine , infact great . Now I am thinking of adding a undo button where I will show this button if the user will click the send button . If the user clicks the send button and leaves the undo button the insert query will be fired. But if the user clicks the send button , but then he clicks the undo button the the insert query should not be fired or it should be rolled back ...or something ...I mean the user should be back on his compose message state as before.
View 2 RepliesWhen writing gridview Event, We must write the Commit and Rollback in event. Can not run the Event if don't write Commit. I want to know what for writing commit and rollback???what a differences between commit and rollback?
View 1 RepliesI would like to use the transactions commit/rollback against a sql server rdbms within a VB 2010 module. I understand how these can be executed within a Transact-SQL session, but cannot seem to be able to code them correctly within VB as these are more like DDL statements.
View 4 RepliesI want to know that do you still need to rollback your transaction if you haven't commit the transaction that was created earlier.
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I finished my first FPS demo level that I created with Visual Basic .net. The source for this game is open source. I went as far as to make a 12 step tutorial on how I did it.
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i am creating a web browser to make something i do at work a bit easyier to manageits a form with a few tabsi need each tab on form1 load, to start individual .exe's that i have already created.these .exe's are simple web browsers that are automatically navigated to a website with a asp query for loginthe website for each tab is identical only the login asp querychanges.the reason for this is i cant use a single .exe otherwise it retains the login and i get identical logins on each.
View 9 RepliesHow to run the application that is made by VB 6 to be run in VB 8?
View 2 Repliesso i follow this tut Sockets in PHP and it would be nice if i can connect my vb.net app to it or isn't that possible..if that's possible will it run always (when the site is online)
View 3 RepliesLets say I have a class called "Item" and "SubItems"
Public Class SubItem
Private _SubItemName As String
Public Property SubItemName() As String
Get
Return _SubItemName
End Get
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How would I create a service that would return a list of Items and upon looking up an individual item I would be able to see the sub items.
I need to modify this code to add 1% interest rate to the new and used rates when less than a 20% down payment is made.
I've already added in the constants for the increased interest rate, but hit a wall there.
Public Class Form1
' Class-level constants
Const dblMONTHS_YEAR As Double = 12 ' Months per year
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I have a table (applicants) and using a GridView various individuals will be making changes to the values in this GridView. I've created another table (history) which I would like to use to log these changes. Right now I have this to capture the changes:
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I have to make an application that make pc-phone and pc - pc call with asp.net. However examples I see on the web are generally made as windows application. Can anyone give me refference, examples, documents about voip and asp.net?
View 1 RepliesI had been programming in Visual Basic 6 as an Intermediate programmer. I realized that it is far too old and is comparatively less powerful. So, I've upgraded to VB.NET. I'm using Visual Studio 2010. My query is before beginning programming with it, what things should I consider over VB6?
View 1 RepliesHow do Microsoft make the controls for win forms, for example a grid ?
View 6 RepliesWorking with detailed forms that is displaying a row form a table adapter, is it possible to detect that a change has been made to a database field when the form is closed?
I.e. if a change has been made I need to ensure that an update is performed before the form actually closes.
I have a dataset that is filled by a tableadapter and what I'm trying to do is to figure out how to loop through all of the rows in my dataset and determine when someone hasedited/changed the row and then
View 2 Replies