asp.net date time

Question

how to check its empty or not in date time data type here is my code DateTime in_time = Convert.ToDateTime(txt_in_time.Text); else if (in_time != "") { #code }

Piyush Pansuriya · Answer

You can try below code as suggest my friend @Madan DateTime? in_time; if (!string.IsNullOrEmpty(txt_in_time.Text)) in_time = Convert.ToDateTime(txt_in_time.Text); else in_time = null; if () { } else if (in_time != null) { #code } This is because I believe you need in_time as DateTime datatype.

Piyush Pansuriya · Answer

Use null keyword else if (in_time != null ) { #code }

Mageshwaran R · Answer

Hi, Try this code: DateTime? dat = null ; if (!dat.HasValue) { }

Amit Kumar · Answer

Hi, I think you should try below code. 1. Method DateTime ? nullableDateTime = null ; if (nullableDateTime.HasValue) Console.WriteLine(nullableDateTime.Value.ToShortDateString()); 2. Method if (! string .IsNullOrEmpty(txt_in_time.Text)) { #code }

Nandha Kumar · Answer

if (!string.IsNullOrEmpty(txt_in_time.Text) && (DateTime.TryParse(txt_in_time.Text))) // Used to check whether textbox is empty or not as well as whether valid in Date fromat { //Your Code } else { //Your Valdiation code }

Madan Shekar · Answer

@ Piyush Pansuriya sir in_time data type is DateTime so it will take deafult datetime value. example code: string in_time = null; DateTime input_time = Convert.ToDateTime(in_time); if (input_time != null) { }

Madan Shekar · Answer

txt_in_time.Text (this is string right ) if "txt_in_time.Text" null means when you go for conversation to Datetime it will take deafult date beacuse of DateTime is a not a nullable. in case "txt_in_time.Text" empty means you will get error . so check if(!string.IsNullOrEmpty(txt_in_time.Text)) { // here you will get a value } else { // here you are getting "null or empty from txt_in_time.Text variable" } if it helps pleas mark as the answer.