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You will need to single out any columns that need to be encrypted. This method uses the ‘Extract Values From Cell’ method to grab values from the Details View control. Data Row) { continue; } Data Control Field Cell data Cell = (Data Control Field Cell)row.

On top of that, the table being updated had over 50 columns, so typing in 50+ lines just to initialize the parameters was required, but I decided to do something else instead. This method isn’t exactly well documented on MSDN, so it’s not obvious at first that the passed parameter, IOrdered Dictionary dictionary, is being used as a referenced parameter, not as a copy. NET framework] The method, Get Values, used is identical to what is covered at the article written at David Fowler’s blog.

This was done using the ‘Is Field Null’ method [shown below].

Initializing the SQL data source also had another problem – because certain data needed to be re-encrypted before being sent back to the database. Encrypt(Get Decrypted Value())); } } } } The method checks to make sure the data being sent isn’t blank or null by executing the ‘Is Field Null’ method. Show Header) { data Cell = (Data Control Field Cell)row.

So, the method in the code behind page would look like something like this: However, decrypting the data using a templatefield tag posed another problem, extracting new values from the ‘Text Box1’ control.

This will be solved when calling the Item Updating event.

For example ‘@Parameter’, will be sent in the update to the record instead of null.

To solve this, you would need to automatically detect whether a value is null and then add it to the Update Parameters list.

The legacy code in the SQL data source used a update statement with parameters.The parameters being sent to the stored procedure were identically named to the column names. private bool Is Field Null(string field Name){ Ordered Dictionary vals = Get Values(Details View) as Ordered Dictionary; if (vals[field Name] == null) { return true; } return string. To String());}public IDictionary Get Values(Details View details View){ IOrdered Dictionary values = new Ordered Dictionary(); foreach (Details View Row row in details View. Normally the details view control automatically detects whether to pass a null in the parameter.Instead when setting the Update Parameters in the codebehind, the control will update the database with the parameter names entered.

Recently I was tasked with encrypting/decrypting some data that could be edited using ASP. Along with the details view control, the legacy code used a SQL Data Source to select and update everything.This means the data access layer was bypassed completely, so any business logic that dealt with encryption on this page had to use a different execution path. The problem could be divided into two tasks: The first task was the easier of the two, as it just involved referencing the encryption library from the code behind page and calling the function inline in the aspx page.

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