Cast from string "" to type 'Date' is not valid

[zafzal]

Hello all,


I have a textbox in my asp.net (vb.net) aplicattion, I need to
assign it's value to a Variable of type DATE, but it's not a required
field, so sometimes I want to send a blank field.

I declared a variable as a date datatype and when it´s going to
receive
the content of the text field, it shows the following error "Cast from
string "" to
type 'Date' is not valid"

What should I do to handle this problem.

 

[Hans Kesting]

Hello all,

I have a textbox in my asp.net (vb.net) aplicattion, I need to
assign it's value to a Variable of type DATE, but it's not a required
field, so sometimes I want to send a blank field.

I declared a variable as a date datatype and when it´s going to
receive
the content of the text field, it shows the following error "Cast from
string "" to
type 'Date' is not valid"

What should I do to handle this problem.

Date (is that the same as DateTime?) can't handle an "empty" value.
What I usually do is use DateTime.MinValue to signal a "missing date".

Hans Kesting

 

[jamesb]

Check the the textbox.text value is not equal to "" before doing the
conversion. If it is equal to "" then don't convert...