https://learn.microsoft.com/zh-cn/dotnet/api/system.data.idataparametercollection.indexof?view=netframework-4.8.1&viewFallbackFrom=net-10.0
IDataParameterCollection.IndexOf(String) Method (System.Data) | Microsoft Learn
Gets the location of the IDataParameter within the collection.
system dataindexofstringmethodmicrosoft
https://learn.microsoft.com/en-us/dotnet/api/system.data.idataparametercollection?view=netframework-4.8
IDataParameterCollection Interface (System.Data) | Microsoft Learn
Collects all parameters relevant to a Command object and their mappings to DataSet columns, and is implemented by .NET data providers that access data sources.
system datainterfacemicrosoftlearn
https://learn.microsoft.com/cs-cz/dotnet/api/system.data.idataparametercollection?view=netframework-4.8.1&viewFallbackFrom=net-10.0
IDataParameterCollection Interface (System.Data) | Microsoft Learn
Collects all parameters relevant to a Command object and their mappings to DataSet columns, and is implemented by .NET data providers that access data sources.
system datainterfacemicrosoftlearn