Required element check

[ShubhaMishra]

Hi,
I know this is a basic query but I am not able to solve that and also not able to find the answer for this question.
Actually I want a required check for a element.
For example:

<xs:element name="Client" type="xs:string" minOccurs="1"/>

I am using micOccurs but this is not checking that the value of tag is null.If value is "<Client></Client>" its working properly. I also tried nilable ="false", but that is also not working.Can anybody tell me an what can be done.
Note: use="required" can be used with attribute not with element

Thanks in advance.

Shubhangi

 

[tsuji]

[1] minLength
[tt]
<xs:element name="Client" minOccurs="1" maxOccurs="unbounded">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:minLength value="1" />
</xs:restriction>
</xs:simpleType>
</xs:element>
[/tt]
[2] minLength may be a too rigid condition in some cases where pure ignorable spaces may not be allowed, a regex pattern may be considered. One way to put the pattern may be this, replacing the <xs:minLength ... />. (There could be lots of equally valid variations.)
[tt]
<xs:element name="Client" minOccurs="1" maxOccurs="unbounded">
<xs:simpleType>
<xs:restriction base="xs:string">
<xsattern value=""(\s*\w+\s*)+" />
</xs:restriction>
</xs:simpleType>
</xs:element>
[/tt]

 

[ShubhaMishra]

I am able to do that.

Thanks,
Shubhangi