Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / EntityClient / EntityParameterCollection.cs / 1305376 / EntityParameterCollection.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections; using System.Collections.Generic; using System.Text; using System.Data; using System.Data.Common; using System.Data.Metadata.Edm; namespace System.Data.EntityClient { ////// Class representing a parameter collection used in EntityCommand /// public sealed partial class EntityParameterCollection : DbParameterCollection { private static Type ItemType = typeof(EntityParameter); private bool _isDirty; ////// Constructs the EntityParameterCollection object /// internal EntityParameterCollection() : base() { } ////// Gets the parameter from the collection at the specified index /// /// The index of the parameter to retrieved ///The parameter at the index public new EntityParameter this[int index] { get { return (EntityParameter)this.GetParameter(index); } set { this.SetParameter(index, value); } } ////// Gets the parameter with the given name from the collection /// /// The name of the parameter to retrieved ///The parameter with the given name public new EntityParameter this[string parameterName] { get { return (EntityParameter)this.GetParameter(parameterName); } set { this.SetParameter(parameterName, value); } } ////// Gets whether this collection has been changes since the last reset /// internal bool IsDirty { get { if (_isDirty) { return true; } // Loop through and return true if any parameter is dirty foreach (EntityParameter parameter in this) { if (parameter.IsDirty) { return true; } } return false; } } ////// Add a EntityParameter to the collection /// /// The parameter to add to the collection ///The index of the new parameter within the collection public EntityParameter Add(EntityParameter value) { this.Add((object)value); return value; } ////// Add a EntityParameter with the given name and value to the collection /// /// The name of the parameter to add /// The value of the parameter to add ///The index of the new parameter within the collection public EntityParameter AddWithValue(string parameterName, object value) { EntityParameter param = new EntityParameter(); param.ParameterName = parameterName; param.Value = value; return this.Add(param); } ////// Adds a EntityParameter with the given name and type to the collection /// /// The name of the parameter to add /// The type of the parameter ///The index of the new parameter within the collection public EntityParameter Add(string parameterName, DbType dbType) { return this.Add(new EntityParameter(parameterName, dbType)); } ////// Add a EntityParameter with the given name, type, and size to the collection /// /// The name of the parameter to add /// The type of the parameter /// The size of the parameter ///The index of the new parameter within the collection public EntityParameter Add(string parameterName, DbType dbType, int size) { return this.Add(new EntityParameter(parameterName, dbType, size)); } ////// Adds a range of EntityParameter objects to this collection /// /// The arary of EntityParameter objects to add public void AddRange(EntityParameter[] values) { this.AddRange((Array)values); } ////// Check if the collection has a parameter with the given parameter name /// /// The parameter name to look for ///True if the collection has a parameter with the given name public override bool Contains(string parameterName) { return this.IndexOf(parameterName) != -1; } ////// Copies the given array of parameters into this collection /// /// The array to copy into /// The index in the array where the copy starts public void CopyTo(EntityParameter[] array, int index) { this.CopyTo((Array)array, index); } ////// Finds the index in the collection of the given parameter object /// /// The parameter to search for ///The index of the parameter, -1 if not found public int IndexOf(EntityParameter value) { return IndexOf((object)value); } ////// Add a EntityParameter with the given value to the collection at a location indicated by the index /// /// The index at which the parameter is to be inserted /// The value of the parameter public void Insert(int index, EntityParameter value) { this.Insert(index, (object)value); } ////// Marks that this collection has been changed /// private void OnChange() { _isDirty = true; } ////// Remove a EntityParameter with the given value from the collection /// /// The parameter to remove public void Remove(EntityParameter value) { this.Remove((object)value); } ////// Reset the dirty flag on the collection /// internal void ResetIsDirty() { _isDirty = false; // Loop through and reset each parameter foreach (EntityParameter parameter in this) { parameter.ResetIsDirty(); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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