asp.net date time

Nandha Kumar Nagarajan

7y825

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

}

7 Replies

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Mageshwaran R6y ago
Hi,
Try this code:
DateTime? dat = null;
if (!dat.HasValue)
{
}
0
Amit Kumar7y ago
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
}
0
Piyush Pansuriya7y ago
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.
+1
Nandha Kumar7y ago
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
}
0
Madan Shekar7y ago
@ 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)

{

}

0
Madan Shekar7y ago
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.
0
Piyush Pansuriya7y ago
Use null keyword
else if (in_time != null)
{
#code
}
+1