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IsNull Element (Query)

Windows SharePoint Services 3

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Used within a query to return items that are empty (Null).


<IsNull>
  <FieldRef Name = "Field_Name"/>
  <Value Type = "Field_Type"/>
  <XML />
</IsNull>

Attribute

Description

None

N/A

Minimum: 0

Maximum: Unbounded

The following query returns cases where the field base type is 1, the ID column equals the Project column, and the Template column is empty. Results are returned in ascending order by Title and then by ID.

<Query>
  <Where>
    <And>
      <And>
        <Eq>
          <FieldRef Name="BaseType"></FieldRef>
          <Value Type="Integer">1</Value>
        </Eq>
        <Eq>
          <FieldRef Name="Project"></FieldRef>
          <Value Type="Integer">
            <ProjectProperty Select="ID"></ProjectProperty>
          </Value>
        </Eq>
      </And>
      <IsNull>
        <FieldRef Name="Template"></FieldRef>
      </IsNull>
    </And>
  </Where>
  <OrderBy>
    <FieldRef Name="Title"></FieldRef>
    <FieldRef Name="ID"></FieldRef>
  </OrderBy>
</Query>
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