---
title: "FindIndex Method "
canonical: https://customerscanvas.com/docs/cc6/O_T_Aurigma_DesignAtoms_Model_SurfaceDataCollection_FindIndex.htm
archived: true
applies_to:
  - product: "Customer's Canvas On-Premises"
  - product: "Design Atoms .NET"
    versions: ["6.0.0", "6.x (may differ)"]
---

**You’re viewing outdated documentation.** [View the latest Customer’s Canvas On-Premises documentation](https://customerscanvas.com/docs/on-premises/).

# FindIndex Method 

**Applies to:** Customer's Canvas On-Premises; Design Atoms .NET 6.0.0, 6.x (may differ) · **Archived documentation**
 
## Overload List
  
|   |  Name |  Description |
| --- | --- | --- |
 |  ![Public method](https://customerscanvas.com/docs/cc6/icons/pubmethod.gif) |  FindIndex(Predicate<T>) |  (Inherited from List<[SurfaceData](https://customerscanvas.com/docs/cc6/T_Aurigma_DesignAtoms_Model_SurfaceData.htm.md)>.) |
 |  ![Public method](https://customerscanvas.com/docs/cc6/icons/pubmethod.gif) |  FindIndex(Int32, Predicate<T>) |  (Inherited from List<[SurfaceData](https://customerscanvas.com/docs/cc6/T_Aurigma_DesignAtoms_Model_SurfaceData.htm.md)>.) |
 |  ![Public method](https://customerscanvas.com/docs/cc6/icons/pubmethod.gif) |  FindIndex(Int32, Int32, Predicate<T>) |  (Inherited from List<[SurfaceData](https://customerscanvas.com/docs/cc6/T_Aurigma_DesignAtoms_Model_SurfaceData.htm.md)>.) |
 
## See Also
  
### Reference
 
- [SurfaceDataCollection Class](https://customerscanvas.com/docs/cc6/T_Aurigma_DesignAtoms_Model_SurfaceDataCollection.htm.md)
- [SurfaceDataCollection Members](https://customerscanvas.com/docs/cc6/AllMembers_T_Aurigma_DesignAtoms_Model_SurfaceDataCollection.htm.md)
- [Aurigma.DesignAtoms.Model Namespace](https://customerscanvas.com/docs/cc6/N_Aurigma_DesignAtoms_Model.htm.md)