Validating HTML Calendar Tool in C#

Question

I'm developing a .NET MVC application. In my .cshtml file I have provided a simple calendar tool in one of my textbox as follows :

 <input class="form-control" id="createdOn" type="text" />

Here's the JS script for it:

$(document).ready(function () 
{
        $("#createdOn").datepicker();
}

Now I want to check whether the user has selected any date in the above metioned text box or not in one of my C# file.

I have a LINQ query which retrieves data and is stored in a variable named "query".

So the code in this C# file goes like this :

var query  = ( from //and so on
     select {
         // data to fetch
}
//below is where I'm stuck
if (!string.IsNullOrEmpty(sc.CreatedOn))      // here sc is an entity 
{
      query.Where(w => w.CreatedOn == sc.CreatedOn);
}

return query.ToList();
}

So here the above IF Block doesn't seems to validate the CreatedOn properly. What am I doing wrong? Can anyone tell a better way to validate it?

In above code 'sc' is object of entity Search. In this Search class CreatedOn is declared and has a datatype of string — Mr.Human, Dec 08 '16 at 09:07

score 1 · Answer 1 · edited May 23 '17 at 12:13

First, check rather of not your sc.CreatedOn is a DateTime already in your entity.

if yes, then you may need to apply another method to check existence of the CreatedOn,

Normal datetime field

DateTime dat = new DateTime();

if (dat==DateTime.MinValue)
{
    //unassigned
}

and in case, DateTime

 DateTime? dat = null;

 if (!dat.HasValue)
 {
     //unassigned
 }

More information From: How to check if a DateTime field is not null or empty?

Validating HTML Calendar Tool in C#

1 Answers1