if ((stringValue.IndexOf("pink") > -1)) is inefficient

### Type of issue

Typo

### Description

The code example shouldn't read:
if ((stringValue.IndexOf("pink") **>** -1))

This is more efficient:
if ((stringValue.IndexOf("pink") **!=** -1))

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.datagridview.cellformatting?view=windowsdesktop-9.0&redirectedfrom=MSDN

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.Windows.Forms/DataGridView.xml

### Document Version Independent Id

d789c17f-da81-5aca-c7f2-63c547287417

### Article author

@dotnet-bot