Saving Replicated Data - Current Data Saved To Appear In Page Within All The Relevant Fields?
Jun 2, 2010
What I am trying tot achieve is the following:User inputs data in one form that saves to the dataset table no problems. On an edit screen I want the current data saved to appear in this page within all the relevant fields but when saving I want this data to add to the dataset table as an additional line of data so the transaction records are kept.I want to add a new datarow regardless of it saving one change or all 7 changes that are possble.
e.g. Line 1 - user inputs 7 cells of data Line 2 - user amends 2 cells of data Line 3 - user amends 1 cell of data an so on. Unfortunately the terminology for certain items above may not be correct as I am still new to this programming and still on a massive learning curve.At the moment I do not have the code for what I am trying to achieve as I really dont know where to start with it.I am currently able to save the data and have it appear in the "edit" panel however only the cells changed are saved an it overwirtes the initial input.
I'm working on a VB.Net windows application.In the top half of the form application, I have a vendor number with a "GO" button and in the bottom half I have a list of tab pages. We have built the application to only go to the database and display data when the tab page is selected by the user. If I'm in one of the tab pages, and I change the vendor number and click the GO button, the data on the current tab page goes blank (it does not refresh). I have been told that I have to find a way of programmatically clicking on the tab page's tab a second time. How do I do that? I've tried using _Selected event, _Selecting event, _Click event. I've even tried to do a .Focus() on the tab page itself. Nothing seems to work to reload the new data without clicking off of the tab and back onto it manually.
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary> ''' The TreeViewDataAccess class allows the nodes within a TreeView to be ''' persisted to xml for later retrevial. ''' </summary>
I'm really hoping I can describe this question in an understandable way. This is a puzzle that I have not been able to begin to solve even though I (mostly) understand it. I'm just not sure where to start, and I'm really hoping someone out there can get me headed in the right direction.
I have a LARGE table of data. It describes relationships between objects. Let's say the Y-axis has items numbered 1-1000, and the X-axis has items 1-1000 also. If item #234 on the Y-axis is related to item #791 on X, there will be a mark in the table where the row and column cross. In some industries this is referred to an a Truth Table. One can, at a glance, see how many items in a system relate to each other. The marks in the table can help to identify trends and patterns.Here's some other helpful stuff about the nature of the table:
The full range of the number of relationships (r) for each item on either axis can be 1 <= r <= axisTotal.The X and Y axis will share common items, but each axis will also have items that the other axis does not.Each item will only exist once per axis. It can be on X and Y, but it would only be on each one 1 time.The total number of items on each axis will most likely NOT be equal. Each axis could have from 50 to 1000's of items.
The end result is that this is going to be a report that needs to be printed. We have successfully printed a table that had about 100-150 items on each axis on an 11in X 17in piece of paper. Any more than that and it begins to be so small it's unreadable.
What I am trying to do is split the super large tables into smaller tables, but related points need to stay together. If I grab item 1-100 on X then I would need each item they relate to from Y.I've generated a number of these tables and, while the number of relationships CAN be arbitrary, I have never seen an item relate to all other items. So in real practice the range is more like 1 <= r <= (10% * axisTotal). If an item's relationships exceed this range, it can be split up into multiple tables, but that is not optimal at all.
At the end of the day I think we, and our clients, would be happy if a 1000x1000 item table was split into 8 to 10 printed pages of smaller, related tables.One other thing worth noting, there will be no empty rows or columns in the table. Every item on both the x and y axis will relate to at least 1 item on the opposite axis.
Hi, I need to program a simple Web Browser that can search for keywords and store relevant data in another file.I am facing a problem with authentication, mainly cookies and maintaining a session.So I read that Web Browser Control is based on I.E.? So may I know how are cookies and session handled?Do I have to implement them manually or are they stored and retrieved from the same folder as the one used in I.E? If so, if I delete the I.E.'s cache, am I also deleteing the cache of any Web Browser I make using Web Browser Control?
I need to control a device with a GPIB port. I have the commands that I need to use to do this; but I don't know which is the sintaxis in Visual Basic.
For example if I need to send a instruction like "START:0.01" to the external device which are the libraries that I have to include?, how should I write the programming line to do this?
The main tasks that I need to program are sending data, receiving data, and saving data
I have a combo box with a data source. This box shows one column of a table and allows me to select one item.Next, I have an ordinary text LABEL that I need to put text from another column of the item selected above.I tried to set the data binding field of the label, but this grabs only the first row or data and shows the selected column. That is nice, but I can not figure out how to update the selected selected ROW when the combo box item is changed.In this case the combo box lists a bunch of inventory parts. When I select a specific part, I need the change the text in a label to show the manufacturer. (like a sub-form). This same behavior will be used in several other places, but the relationships can cascade.
i want to create a table that include a current year data and as well as previous data to be compare. here is the example of the table that i want to create: but i want to compare one of the annual data with the previous year. as example i want to compare between the data of current AR of 2007 with the current AR for 2006, Current AR of 2006 with current AR for 2005 and go on~, but i have no idea how to do it.
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
Using VB 2008 Express, I've constructed a simple database type app for saving contacts. The table data I save at design time is always saved correctly but data entered at run time seems to get saved even after closing the app and VB. However, after restarting the computer, the newly entered data is usually gone. Why would this be? I've seen a few video tutorials on creating simple database apps and did everything they did and am getting the same problem. I thought it was a configuration problem so I actually re-installed Windows and VB 2008 Express (as well as 2010 Beta 2). I have noticed that in the database explorer, the .mdf file has a red x to the bottom right of the yellow database icon and when I click the + it seems to turn into a black plug. Is this normal?
creating an application using VB 2010 Express. i found data I entered into table were not saved (after I clicked"Save" button)successfully into Microsoft access file which I had added successfully as datasource.These are the codes:
I'm trying to figure out/learn how to overwrite previously saved data. Right now when I save data to my excel form and then reopen it, to edit, a duplicate row with the edited data is shown along with the previously saved data as well.
I have datagridview in which 2 & 3 rd columns are Combo Box. I have saved the data to the database from datagridview. But while retrive if i assign datatgridview.datasource= mydatatable.It addes new coulm show the values. for my combobox columns it shows the value member values. If change the datagridview.autogeneratecolumns =false
I have a simple Master/Detail program the database contains 2 tables and the form contanis 2 datagridview controls getting it's data from 2 bindingsource controls
my problem is when I enter a new record in the grid that belongs to the master table and enter a detail to that data the data of the new master record is saved but not it's detalis but when I enter new details for old master record the save is done well
how I can enter an new record for master table and enter a detail for it and save without loosing detail data
I have tried to test out the add delete and save function on a datagridview but the data that I added during testing would disappear after I made some changes to the code.
I have made a application that detects already saved hotkeys and data assigned to them, so now whenever I press the hotkey to send the assigned data to active window it does sends the data to active but it won't stop sending data...I am calling my function that reads data from the database in timer device and the function that detects the hotkey...
Here is my code Private Sub Hot_Checker_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Hot_Checker.Tick gKey.CheckBox() 'is the object that calls the function to check the pressed hotkey keyTemp = gKey.getHkey() [Code] .....
trying to find the main error that is causing this to happen, after pressing the hotkey my app won't stop sending the data to the active window. My app should wait for the next hotkey press rather than sending data.
I am a freshman by using vb and I had search several website to learn the method to display the previous saved data in a label but none of it is related to my problem.
I have form with combobox I have database contained 2 filed "ItemID" and "ItemName" The combobox fill her data from the database from field "ItemName" I do when I choose in the combobox any item and save, the data saved in database "ItemId" Not "ItemName" by define string put on it "itemId" when the user choose any item in combobox I need when I get the data that saved in database the combobox value="ItemName"
I 'm trying to develop a database whereby all information input via vb 2008 will be saved into a microsoft access database. I've tried to populate a few information. The data was saved at that point, but when i reopen my system the next day, all the rows are gone. [code]
I am having a hard time figuring this out. It's about ExecuteNonQuery() method and sql server database. I done several testing and still getting the desired result which is data captured from application window and saved into sql server database table.
Some results i gotten from my testing:Query - Senario 1:From application window, data was captured into variable memory but didnt save into database and end up with blank database. (Tested many rounds still end up in this senario)Senario 2:Used the command console in the data explorer frame, with the insert query along with required value, an entry was made. (Test a couple of rounds and i know it worked)
ExecuteNonQuery() - Tested using if/else method as shown below and the result was pass that show the method is working. This testing method was found from this link: [URL]Below is my create Method(sentence with ' are comments):
Dim DatabaseConnection As String = My.Settings.QuotationDatabase [color="#00FF00"]'Connection to Database[/color] Dim SqlConnection As New System.Data.SqlClient.SqlConnection(DatabaseConnection) [color="#00FF00"]'Linking Database Connection via SqlClient to Application[/color] Dim Query As String = "Insert Into Clients2 (Title, Name, Email, Designation, ResidentialNumber, MobileNumber, CompanyName,
If i run the program in debugmode and then do a update it will be saved to the database.(must stop and run again to see the update. How to se the update directly?) My main problem is that if a build the program and run it outside VS then update never being saved. How can i solve this. I tried using "commit"(maybe totaly wrong) but that didnt work.
