Pivot table not updating in excel 2016 Free of charge no hidden costs adult chat sites

Posted by / 16-Jan-2015 22:54

The Add customer button launches new form that allows the user to enter a new customer name and click save. Otherwise you are only changing the copy of the data, not the data. 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. You simply have two copies of the data from the database.

When the user hits save and form B closes and the focus goes back to form A and they drop down the combobox, the newly added customer does not show up, yet when checking the table, it is there. When you reload the dataset, the data you added will be missing. Another thing that happens is that someone changes the dataset, then doesn't write the the information back to the database. The post was never really properly addressed, but you guys are sure to jump on someone adding input. Changing one of those copies doesn't affect the other.

You wouldn't use the Data Bindings property at all.

That's for bind specific properties of the Combo Box to values from a list or an object.

That is used more in situations like binding the Text property of a Text Box.

For a Combo Box you would use, as you said, the Data Source, Display Member and Value Member.

I tried the code supplied here but my VB2010 choked on this line combobox.datasource=? form2 contains datagrid, dataset, tableadapter, binding source, load code, save code, add record code [Binding source] Datasource = Pro Flow1Data Set Datamember = orificedata [Datagrid] Bindingsource = Proflow1Dat Set Binding Source Load code If I edit data in the datagrid and click save, the datagrid show the changed value. Saving the changes from one of the copies to the data doesn't change the other.

datasource Also followed jmcilhinney's advice to the letter..didn't fix my problem either.. Firstly, please don't post the same thing three times. BUT if I add a new item to the datagrid I notice the ID [primary key in the table] shows a negative number rather than a sequential positive number after I click the Add button. If you have a Combo Box bound to a Data Table and you never actually change what's in that Data Table, why would what you see in the Combo Box change? If you want to update the data in the Combo Box then you have to query the database to populate the Data Table that it's bound to.

If it's set up that way then any changes you make to the Data Table will be reflected in the Combo Box. 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. A Data Set is essentially an in-memory representation of a database.

hi all - on a windows form i have a combobox called currency, it is populated by a tableadapter called exchangerate which is turn populated by a dataset called mydataset.

on form load, i issue update commands to the backend database that holds the table which populates the dataset - they work.

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. 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. A Data Set has a Tables property, which is a collection of Data Tables, and a Relations property, which is a collection of Data Relations.

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.... When you call Fill on a Data Adapter or Table Adapter you are populating a Data Table.

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if they exit the app and restart the previously added customer now shows up in the combobox list." - so ideally, how do you get the combobox to reflect the newly added record without exiting the app? I have the same problem with a combobox not reflecting data changes to the database. Saving the changes from one of the copies to the data doesn't change the other.

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