Archive

Posts Tagged ‘ASP.NET’

Unable to launch the ASP.NET Development server because port ‘1900’ is in use


The Problem

You are coding away, Visual Studio locks up for one of it’s many reasons, and reopen your project and run it again. You then get the “Unable to launch the visual studio development server because port 9452 is in use” error

The Cause

When Visual Studio crashed, the Web Server did not, so basically it thinks you are trying to run two instances at the same time, which is not allowed.

The Solution

Open up the process manager, go to the Processes tab, and select “WebDev.WebServer40.exe” and click “End Process”. Then try running your project again. Visual Studio will now start the project fresh and the problem should go away.

1

Or try this

2jpg

 

Hope it helps !

Opening project in Visual Studio fails due to nuget.targets not found error

January 22, 2016 Leave a comment

Problem:
I try to open project in Visual Studio and get all these nuget errors:

The imported project "C:\Twitterizer\.nuget\nuget.targets" was not found. 
Confirm that the path in the <Import> declaration is correct, and that the file 
exists on disk.

Solution:
Follow the following steps to resolve above error
  1. Install Nuget.
  2. Right click on the solution and select “Enable NuGet Package Restore”.
  3. Click Ok on the warning.
  4. Close and re-open the solution.
Hope this help!

AngularJS Form Validation – Disable Submit / Confirm Password Custom Directive

January 21, 2016 Leave a comment

Bootstrap and datepicker

November 17, 2015 Leave a comment

How to Access Parent Page (.aspx) control (IDs) from its child User Control (.ascx)

November 5, 2015 Leave a comment

Write below line of code in control to find relevant parent page (aspx page)’s control

Code for VB.NET

Dim MainContent As ContentPlaceHolder = Me.Page.Master.FindControl(“MainContent”)

Dim btnPrint As Button = MainContent.FindControl(“btnPrint”)

 

Hope this help !

 

 

Page Life Cycle


Page Life Cycle

 

Seq Events Controls Initialized View state
Available
Form data
Available
What Logic can be written here?
1 Init No No No Note: You can access form data etc. by using ASP.NET request objects but not by Server controls.Creating controls dynamically, in case you have controls to be created on runtime. Any settinginitialization.Master pages and them settings. In this section, we do not have access to viewstate , posted values and neither the controls are initialized.
2 Load view state Not guaranteed Yes Not guaranteed You can access view state and any synch logic where you want viewstate to be pushed to behind code variables can be done here.
3 PostBackdata Not guaranteed Yes Yes You can access form data. Any logic where you want the form data to be pushed to behind code variables can be done here.
4 Load Yes Yes Yes This is the place where you will put any logic you want to operate on the controls. Like flourishing a combobox from the database, sorting data on a grid, etc. In this event, we get access to all controls, viewstate and their posted values.
5 Validate Yes Yes Yes If your page has validators or you want to execute validation for your page, this is the right place to the same.
6 Event Yes Yes Yes If this is a post back by a button click or a dropdown change, then the relative events will be fired. Any kind of logic which is related to that event can be executed here.
7 Pre-render Yes Yes Yes If you want to make final changes to the UI objects like changing tree structure or property values, before these controls are saved in to view state.
8 Save view state Yes Yes Yes Once all changes to server controls are done, this event can be an opportunity to save control data in to view state.
9 Render Yes Yes Yes If you want to add some custom HTML to the output this is the place you can.
10 Unload Yes Yes Yes Any kind of clean up you would like to do here.

 

Reference :

http://www.codeproject.com/Articles/73728/ASP-NET-Application-and-Page-Life-Cycle

 

Categories: ASP.NET Tags: ,