---
substitutions:
  method: |-
    ```{image} ico/method.ico
    ```
  prop: |-
    ```{image} ico/prop.ico
    ```
---

# QueryOptions Class

Specifies options to use for searching entities in ERP.

**Namespace:** powerGate.Erp.Client\
**Assembly:** powerGate.Erp.Client.dll

## Inheritance Hierarchy

[System.Object](<https://msdn.microsoft.com/en-us/library/system.object(v=vs.110).aspx>)\
&emsp;**powerGate.Erp.Client.QueryOptions**

## Syntax

```{code-block} CSharp
:linenos:

public class QueryOptions
```

The QueryOptions type exposes the following members.

## Constructors

| Name                      | Description                                           |
|---------------------------|-------------------------------------------------------|
| {{method}} QueryOptions() | Initializes a new instance of the QueryOptions class. |


## Properties

| Type                                       | Name    | Description                                                                              |
|--------------------------------------------|---------|------------------------------------------------------------------------------------------|
| {{prop}} IEnumerable\<string\>             | Expand  | The Navigation property name(s) which should be expanded.                                |
| {{prop}} string                            | Filter  | The OData filter which will be executed.                                                 |
| {{prop}} IEnumerable\<[OrderBy](orderby)\> | OrderBy | The order of the Item's. They can be ordered by the property name and/or direction.      |
| {{prop}} IEnumerable\<string\>             | Select  | Specifiy the properties which should be explicitly requested and returned by the client. |
| {{prop}} int                               | Top     | The amount of items which should be returned.                                            |

## Remarks

The **Filter** property allows you to specify a filter with OData syntax. More informations about the OData Filter syntax can be found [here](http://www.odata.org/documentation/odata-version-3-0/odata-version-3-0-core-protocol/).\
The **OrderBy** property allows you to order the list of entities by property name(s) and/or direction (Ascending or Descending).\
The **Expand** property allows you to expand multiple navigation properties. By default, when the expand property is **not** specified then most Erp-systems reurn the entity without navigation properties.\
The **Select** property lets you receive only those properties which you want to have in the result.

## See also

**Reference**

- [powerGate.Erp.Client namespace](/code_reference/net_library)