Vb net datagridview not updating Sex chat robots with sexy pics
You may have figured this out already but I thought I would post this to help someone else that may be having this issue. Add(New cls Combo(n Next ID, "New", "", "", "", "")) combobox. Even if you pass a Data Set as an argument, you are saving changes from one of the Data Tables in its Tables collection. Item("Name") = user Msg Pro Flow1Data Set.orificedata. Add(ds New Row) 'Update the datagridview with the new data Orificedata Table Adapter.
If you swap out my arraylist code with your tableadapter I believe it will work. Just as a database table has columns to describe the data and rows to contain it, so a Data Table has a Columns property, which is a collection of Data Columns, and a Rows property, which is a collection of Data Rows. You can manipulate the dataset without committing the changes to the actual database. Update(Pro Flow1Data Set) End Sub Form 1 has the combobox that is not updating.
the short version (or at least as short as I can make it, so forgive the excessive verbiage) is as follows: - created a sql2005 express database with a table called currency in it - fields are Currency, Rate, As_of - i call a public function named getexchangerate() that hits yahoo finance and grabs the exchange rate file for that particular currency and time of day and parses the values in to their respective pieces that correspond with the above fields in currency - i fire up a connection to the database and call the transact-sql update command using the values retrieved above - the table updates with the values successfully - i launch form1 which contains a combobx entitled Exchange_CB - it's display value is Currency, It's value item is Rate - also, as a sidebar....i have a string i pass from the getexchangerate function that updates a label that contains all of the retrieved values - this also works correctly on form load (and is how i discovered the update wasn't happening on the comboboxes selectedvalue) - when i dropdown and change the combobox, in this case from CDN to USD, the previous valuemember is displayed (ie from the last successful download) - i exit the app and go back in, and change it again and it's correct. When you call Update on a Data Adapter or Table Adapter you are saving changes from a Data Table.
Logic seems to tell me that my call to refresh the data is happening before the adapter is filled, but of course i don't know at this point and hence this posting.... Even if you pass a Data Set as an argument, you are saving changes from one of the Data Tables in its Tables collection.
Now, in your situation, you should be binding your Data Table to a Binding Source and then binding that to the Combo Box.
It can be done in code or, if you added the Data Set in the designer, then it can also be done in the designer. Machines) There's a difference alright, but not the one you seem to think there is.
for the record, i am far from an expert and have been at this for the last whopping 6 months now - you actually were instrumental in resolving my very first problem and several others by the way..... A Data Set is essentially an in-memory representation of a database.Update will save the changes in the Data Table to the database but those changes should already be reflected in the Combo Box because they're already in the Data Table. When you call Fill on a Data Adapter or Table Adapter you are populating a Data Table.I think you need to explain more clearly exactly what you're trying to do, how you're trying to do it, what you expect to happen and what does happen. | MSDN Data Walkthroughs VBForums Database Development FAQ My Code Bank Submissions: VB | C# My Blog: Data Among Multiple Forms (3 parts) Beginner Tutorials: VB | C# | SQL thanks for the databindings heads up - you saved me several hours of googling I'm sure..... Even if you pass a Data Set as an argument, you are populating one of the Data Tables in its Tables collection.For a Combo Box you would use, as you said, the Data Source, Display Member and Value Member.The Data Source is the list containing the data to bind.
Many people don't understand this and find themselves wondering why all of their data dissapeared. Chances are the people who originally asked the question are using table adapters (as in ADO. People make the mistake of adding the data to the table adapter, then can't see it on the dataset because they didn't perform a fill method. [combobox] datasource = Proflow1Dat Set Binding Source Display member = name Bindingsource [underneath the form] = Bindingsource = Proflow1Dat Set Binding Source [Proflow1Dat Set Binding Source] Datasource = Pro Flow1Data Set Datamember = orificedata Form1 load code You don't have a problem at all.