ASP.Net

.Net – ASPX – Error – “Invalid postback or callback argument. Event validation is enabled”

Daniel Adeniji .Net ( Microsoft ), ASPX, Levi Broderick ( Software Engineer ), Microsoft, Technical, Web.Config ,

Background Tried using a dated .Net Application that I wrote quite a long time ago. I accessed a drop down, selected an item from the drop down, and clicked a push button. Errors Error - "Invalid postback or callback argument. Event validation is enabled using..." Unfortunately received an error that reads:- Text Invalid postback or … Continue reading .Net – ASPX – Error – “Invalid postback or callback argument. Event validation is enabled”

Microsoft.Net Web Site ( v2.5 ) – Error Message – “CS1002: ; expected”

Daniel Adeniji .Net ( Microsoft ), ASP.Net, Microsoft, Microsoft .Net Framework, System.Collections.Generic ( .Net Framework - Namespace ), Technical, v 2.0 ( Microsoft - .Net - .Net Core - Version )

Background Have a very old .Net website that is running .Net Framework 2.5. A couple of days added a new module to it. Generics The new module relies on generics. Declare List Array The code looks like this:-   Error Message Here is the error message Error Message - Text Error Message - Image   … Continue reading Microsoft.Net Web Site ( v2.5 ) – Error Message – “CS1002: ; expected”

.Net – ASPX – Avoid Parser Error when commenting out code

Daniel Adeniji .Net ( Microsoft ), ASP.Net, ASPX, Microsoft, Server Side Comments, Technical , ,

Background While trying out different code snippets as I worked on tweaking an ASPX app, I ran into a parser error. BTW, the enhancement is detailed here. Let us quickly go over the parser error.   Parser Error   Code   Parser Error Image Textual Correct Here is the change. Basically, it is to replace … Continue reading .Net – ASPX – Avoid Parser Error when commenting out code