Use of Contains() as LINQ query with Entity Framework

### Type of issue

Missing information

### Description

While generally true, there is an issue when using it as a LINQ query because Entity Framework can not translate string.Contains(char). It needs a string.Contains(string).
This can be confusing for programmers when they receive a runtime exception.

### Page URL

https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca1847

### Content source URL

https://github.com/dotnet/docs/blob/main/docs/fundamentals/code-analysis/quality-rules/ca1847.md

### Document Version Independent Id

5e1aa81d-07da-dfab-14d1-3d361e7c486b

### Platform Id

d625e2cb-f7de-4a76-1c93-e6672828154c

### Article author

@MeikTranel

### Metadata

* ID: 4b505c55-ce56-19b9-2c29-c39017e52345
* PlatformId: d625e2cb-f7de-4a76-1c93-e6672828154c
* Service: **dotnet-fundamentals**

[Related Issues](https://github.com/dotnet/docs/issues?q=is%3Aissue+is%3Aopen+5e1aa81d-07da-dfab-14d1-3d361e7c486b)