Code inspection: String formatting method problems

tip

You can suppress this inspection to ignore specific issues, change its severity level to make the issues less or more noticeable, or disable it altogether.

This inspection verifies that format items in the format argument of the String.Format and similar methods are used correctly.

If you have a custom formatting method that behaves like String.Format, you can mark it with the [StringFormatMethodAttribute] from JetBrains.Annotations to enable the corresponding checks. Here is an example:

[StringFormatMethod("message")]
void ShowError( string message, params object[] args)
{
    // Show error
}

void Test()
{
    // Warning: Non-existing argument in format string
    ShowError("Failed: {0}");
}