ISSTRING DAX Function (Information)

Syntax  |  Return values  |  Related  

Checks whether a value is a string, and returns TRUE or FALSE.

Syntax

ISSTRING ( <Value> )
Parameter Attributes Description
Value

The value you want to test.

Return values

Scalar A single boolean value.

Returns TRUE if the value is a string.

Related functions

Other related functions are:

Last update: Feb 11, 2025   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

Microsoft documentation not available.
The function may be undocumented or unsupported. Check the Compatibility box on this page.

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Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.

Iterator

Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.

Deprecated

This function is deprecated. Jump to the Alternatives section to see the function to use.

Volatile

A volatile function may return a different result every time you call it, even if you provide the same arguments. Click to read more.

Deprecated

This parameter is deprecated and its use is not recommended.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.

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