Validating gridview for rowcount in


So, when the gridview comes up, it shows nothing in the column where I deleted it.Then when I select to edit that same row, I get an error because I cannot select the value for the dropdown for a non-existing value.I will also show you that how you can use validation against the Drop Down List control which is contained inside the Grid View control.As you can see that two Bound Columns and two Template Columns.The Category ID and Category Name are the Bound columns which are bound to the "Category ID" and "Category Name" fields in the Categories table in Northwind Database.The "Description" and "Choose" columns are template columns.We need to convert these Bound Fields to Template Fields.The Delphi language was formerly known as Object Pascal, and is an object-oriented version of the venerable Pascal language, combined by Borland with a Visual Basic-like RAD tool that lets you write fast GUI applications with no run-time, a very rich set of components (VCLs) that can be statically compiled into the EXE, and an encapsulation of most of the Windows API for easier access to the underlying OS. For more infos, read Delphi history from Pascal to Diamondback (Delphi 2005) by Zarko Gajic. FWIW, the main extras offered by the Enterprise version of Delphi 7 are Intra Web from ATo Zed (Framework component set for building web apps in a RAD manner), Rave Visual Designer (Visual reporting tool), Biz Snap (to create web services,) and Model Maker (UML stuff.) If you'd rather use the familiar TAB button to indent a whole block, install Two Desk's Castalia add-in to the IDE, or the free Cn Wizards (a.k.a. If you are running Delphi Pro and above, check out GExperts or Cn Wizards.

//get a reference to your grid based on where this code is getting called from //In the code below it assumes that grid is your grid reference store = Store(); view = View(); error = false; column Length = grid.columns.length; store.each(function(record,idx)); You can manually code for the validations as shown above or use the Model's built-in support for validations, which are executed against the validator functions in validations.

In testing the editing, I deleted the dropdown entry from one of the rows.

When the gridview is in edit mode, one of the columns is a dropdown.

a DPK master file along with one or more PAS files to be compiled into DCUs and aggregated in a single BPL file that will be registered into the IDE.

Note that design-time packages and run-time packages are two different beasts: The former adds itself to a palette in the IDE and provides an interface to access its properties, routines, and events; The latter is used by applications that were compiled with run-time packages, ie. Some BPLs are both design-time and run-time, so I guess they have a switch somewhere in the code that lets me act differently depending on the context.

Net framework were designed by the same person, Anders Hejlsberg. In October 2006, Borland relaunched its Turbo brand, and offers two versions: Explorer, which are free but doesn't allow installing third-party components, and Professional, which aren't. Borland Developer Studio) with just the Delphi for Windows32 personality.

As of April 2005, Delphi is available as Delphi 2005, a.k.a. Net applications, but you might be able to still get your hands on Delphi 7 (to write Win32, and Linux applications by using Kylix and the Qt widgets-based CLX component library instead of the Windows-only VCL widgets), or Delphi 8 (to get you started writing . If you just want to get started and learn Delphi, the Personal edition of Delphi 7 is all you need is love. If you are using the Personal or Standard edition, looks like the only way is to use the syntax, with no menu or keyboard shortcut available.

The Grid View looks something like this: If you carefully read the HTML code of the Grid View which I have posted above then you will notice one very special thing.

I needed a way to validate the Grid for errors when clicking on toolbar button say SAVE the Grid.

If there was an error I would change the cell style to indicate to the user which cells have error and also add a qtip so that when the user hover over the cell they would know what kind of error occurred.

Looked all over the internet and spent quite a bit of time looking for a solution.

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