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Searches for the specified Object and returns the zero-based index of the first occurrence within the entire collection.
public int IndexOf(object obj)
| Type | Name | Description |
|---|---|---|
| object | obj | The Object to locate in the collection. The value can be a null reference. |
| Type | Description |
|---|---|
| int | The zero-based index of the first occurrence of value within the entire collection, if found; otherwise, -1. |