only one of the two textboxes is required

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I have two text boxes, Address1 and POBox .It is optional for the users to fill in both, but is mandatory that the user fills in at least one of them.

My code for that is:

C#

private static bool Validation_Address1 ( CmpAddress target, 
                                          RuleArgs   e)
    {

    if ( target.IsDirty )
        {
        if ( target.Address1.IsNullOrEmpty ( ) && 
             target.PoBox.IsNullOrEmpty ( ) )
            {
            e.Description = "Must specify a P.O. Box or Street Address.";
            return ( false );
            }
        }
    return ( true );
    }

But this code is not working. It is still throwing the error message even if the pobox is filled but address1 not filled. Please help

Posted 5-Aug-14 9:46am

Member 10935161

Updated 7-Aug-14 13:35pm

gggustafson

v3

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gggustafson 7-Aug-14 19:37pm

Sure it shouldnt be String.IsNullOrEmpty ( target.Address1 ) and String.IsNullOrEmpty ( target.PoBox ) ?

Sergey Alexandrovich Kryukov 7-Aug-14 19:59pm

There is much more elegant check which I wanted to share. Please see my answer. :-)
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-08-07T13:58:00

Solution 1

Taking into account that the value of TextBox.Text can be empty but cannot be null, you can write a very simple condition:

C#

bool isValid = Address1.Text + POBox.Text != string.Empty;

Perhaps you also need to treat a text which contains only blank space characters also as a control with missing data. In this case (which is really reasonable in most practical situations), the check would be a bit more complex:

C#

bool isValid = Address1.Text.Trim() + POBox.Text.Trim() != string.Empty;

Good luck.

—SA

Posted 7-Aug-14 13:58pm

Sergey Alexandrovich Kryukov

v2

Comments

gggustafson 7-Aug-14 20:06pm

cute +5

Sergey Alexandrovich Kryukov 8-Aug-14 0:39am

Thank you very much.
—SA

[no name] 8-Aug-14 0:25am

My vote of 5, Simple and humble :)

Sergey Alexandrovich Kryukov 8-Aug-14 0:40am

Thank you very much, Sibeesh.
—SA

[no name] 8-Aug-14 0:43am

mine 5+

Sergey Alexandrovich Kryukov 8-Aug-14 0:45am

Thank you very much, Bala.
—SA

Avik Ghosh22 8-Aug-14 6:55am

nice ... 5+.

Sergey Alexandrovich Kryukov 8-Aug-14 13:32pm

Thank you, Avik.
—SA

Member 10935161 8-Aug-14 9:38am

hi sergey , thanks for the solution. But I tried doing it and it is throwing the same error.

Sergey Alexandrovich Kryukov 8-Aug-14 13:33pm

What error? My solution does not cause any "errors". I have no idea what you wrote and what is the problem.
—SA

Member 10935161 8-Aug-14 9:39am

The scenario is like this:
I filled Pobox textbox and left address1 textbox empty and is throwing the error message "either of the textbox should be filled" which I've done already

Sergey Alexandrovich Kryukov 8-Aug-14 13:34pm

I already answered your question. Please, what is the concern?
—SA