Skip to content

Magenaut

  • Home
  • Topics
    • Notes
    • Tutorial
    • Bug fixing
    • Extension
    • Server
  • Q&A
  • Privacy Policy
  • About

c#

ASP.NET MVC3 Code-First Error- attempting to update entity

August 26, 2022 by Magenaut

I’ve checked this question and it seems to be related to what I need, but does not answer it exactly.

Categories ASP.NET, Q&A Tags asp.net, asp.net-mvc-3, c#, sql-server-ce Leave a comment

How to Delete multiple records in Linq to Entity?

August 26, 2022 by Magenaut

I have a tblA in sql: id int (primary key) fid int data in tblA is: 1 1 2 1 3 2 4 2 5 3 6 3 i delete one record by following code: DatabaseEntities obj = new DatabaseEntities(); int i = 2; tblA t = obj.tblA.Where(x => x.fid == i).FirstOrDefault(); obj.DeleteObject(t); obj.SaveChanges(); i … Read more

Categories ASP.NET, Q&A Tags asp.net, c#, entity-framework, linq, sql Leave a comment

Unable to write to asp.net textbox control with the html5 “date” type

August 26, 2022 by Magenaut

I have an asp.net page with a an html5 TextBox control set as the “date” type. The control on my page looks like this:

Categories ASP.NET, Q&A Tags .net-4.0, asp.net, c#, html Leave a comment

GetProperty(“pname”) returns null

August 26, 2022 by Magenaut

I want to get value for a dynamic property of a dynamic object.
Here is my Code..

Categories ASP.NET, Q&A Tags asp.net, c# Leave a comment

Google+ API plus.me

August 26, 2022 by Magenaut

The question: How to use people.get with the “me” parameter?

Categories ASP.NET, Q&A Tags .net, asp.net, c#, google-api, google-plus Leave a comment

“already an open DataReader” exception with nested SqlDataReader in ASP.NET

August 26, 2022 by Magenaut

I wanted to use nested SqlDataReader in the code below but I couldn’t make it.I get “System.InvalidOperationException: There is already an open DataReader associated with this Command which must be closed first” with the code. Any Suggestions

Categories ASP.NET, Q&A Tags asp.net, c#, sqldatareader Leave a comment

Unable to logout from ASP.NET MVC application using FormsAuthentication.SignOut()

August 26, 2022 by Magenaut

I am trying to implement Logout Functionality in ASP.NET MVC.

Categories ASP.NET, Q&A Tags .net, asp.net, asp.net-mvc, c#, forms-authentication Leave a comment

ASP.NET MVC custom multiple fields validation

August 26, 2022 by Magenaut

I’m developing an ASP.NET MVC 5.2.3 custom data annotation for validation in Visual Studio 2015. It needs to take any number of fields and ensure that if one has a value, they all must have a value; if they’re all null/blank, it should be okay.

Categories ASP.NET, Q&A Tags asp.net, asp.net-mvc, c#, data-annotations, validation Leave a comment

How to get the total number of days in a year from the given date

August 26, 2022 by Magenaut

I would like to get the total number of days in a year left from the given date .. Assume if a user gives 04-01-2011(MM-DD-YYYY) I would like to find the remaining days left. How to do this..

Categories ASP.NET, Q&A Tags asp.net, c# Leave a comment

Disable postback at click on a button

August 25, 2022 by Magenaut

I want do disable postback after clicking a <asp:Button>. I’ve tried to do that by assigning onclick="return false", but in the button doesn’t work.

Categories ASP.NET, Q&A Tags asp.net, c#, postback Leave a comment
Older posts
Newer posts
← Previous Page1 … Page347 Page348 Page349 … Page451 Next →
  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

.net ajax asp.net asp.net-core asp.net-mvc asp.net-mvc-3 asp.net-mvc-4 asp.net-web-api bash c# command-line css custom-post-types custom-taxonomy dataframe dictionary django entity-framework functions gridview html iis javascript jquery json linux list matplotlib numpy pandas php plugin-development plugins posts python python-2.7 python-3.x security shell shell-script sql string vb.net webforms wp-query

© 2026 Magenaut • Built with GeneratePress