A common requirement is to calculate the total of a currency field and display it in a textbox.In the snippet below, we will be calculating the total of the ‘Freight’ field.I have to put focus back on that cell and then leave again to get the new value to display. Or is there an event I should fire to cause the cell to update???I have trued calling the Update(), Update Cell(column, row)...This method uses the Sql Data Adapter to populate a Data Set.The table ‘Orders’ in the Data Set is then bound to the Binding Source component which gives us the flexibility to choose/modify the data location.
All Cells’ enumeration value which automatically adjust the widths of the columns when the data changes.(Java coming behind as a close second.) So when a small program is to be written, I prefer to choose C#. And it is a precondition to what I am going to write here. Here I created a database called “classicalmusic” and inside the said database I created a table called “composers”. But alas when you go and look at the My SQL table or reload your program, you will see that the changes are not reflected in the database. We have to select the best possible moment to update the My SQL table making that we do not submit half cooked data at the same time ensuring that all the valid changes are reflected in the database without any loss.But if that program involves working with databases we are in a bit of a trouble. But what if we do not want to sacrifice the freedom that we have with My SQL? I would suggest you to go through this example and get some experience in connecting My SQL to . We only have to commit the changes to the My SQL table. Because we have to tell the Data Grid View control that we have committed the changes it had. But before that, make sure that you have referred the “My SQL. If you haven’t, go back to the Codeproject example and see how it is done.Committing all the data including the unchanged data is a waste of resources. Otherwise next time when we ask for changes we will be in trouble. So we use the following nifty bit of code to extract only the changes that we did. er and changing the value of the cell, but the display is not updating immediately with the new value...Again, same exception gets thrown, but coming from withing the instantiated class itself.The Get Orders function inside of Customers requires an instance of a connection, but you disposed of the required objects required to access the database back up in Load Data() when you called a. Be careful when you clean up your instances, that you are not using them again somewhere.Data Grid View control is a Windows Forms control that gives you the ability to customize and edit tabular data.In this short snippet, we will populate a Data Grid View using the Load Data() method.