I need help on a component of an ASP.NET project. I am allowing users to login, complete surveys, revisit surveys, and edit their previous responses. I need something that is efficient that will allow me to know when a submit button is clicked, which controls have been changed so that only those controls values will be submitted to the database. The controls I need monitored are checkboxes, textboxes, radiobuttonlists, dropdown lists, and listboxes.
User edits the survey (which was loaded from the ms access db), clicks the submit button, a postback occurs and then:
Sub Button1_Click(ByVal sender As Object, ByVal E As EventArgs)
Dim c as Control
For Each c In [url removed, login to view]
If TypeOf c Is TextBox Then
If ctype(c, textbox).changed=true (note: this "changed" property is what I need coded)
Then do some SQL...
For Checkboxlists, multiple things can be checked, so the code would look like this:
If TypeOf c Is checkboxlist Then
Dim li as ListItem
For each li in [url removed, login to view]
If li.changed=true (note: this "changed" property is what I need coded)
Then do some SQL...
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