/// <summary>
/// 得到表中索引数据表
/// </summary>
/// <param name="Indexes"></param>
/// <returns></returns>
private DataTable ConverIndexSchemaCollectionToDataTable(IndexSchemaCollection Indexes)
{
DataTable dt = new DataTable();
dt.Columns.Add("IsPrimayColumns", typeof(bool));
dt.Columns.Add("Name", typeof(string));
dt.Columns.Add("IsUnique", typeof(bool));
dt.Columns.Add("IsClustered", typeof(bool));
if (Indexes != null)
{
foreach (IndexSchema indexSchema in Indexes)
{
DataRow row = dt.NewRow();
if (indexSchema.IsPrimaryKey)
{
row["IsPrimayColumns"] = true;
}
else
{
row["IsPrimayColumns"] = false;
}
row["Name"] = indexSchema.Name;
row["IsUnique"] = indexSchema.IsUnique;
row["IsClustered"] = indexSchema.IsClustered;
dt.Rows.Add(row);
}
}
return(dt);
}
public static IndexSchemaCollection Synchronized(IndexSchemaCollection collection)
{
if (collection == null)
{
throw new ArgumentNullException("collection");
}
return(new SyncList(collection));
}
public static IndexSchemaCollection ReadOnly(IndexSchemaCollection collection)
{
if (collection == null)
{
throw new ArgumentNullException("collection");
}
return(new ReadOnlyList(collection));
}
public override void AddRange(IndexSchemaCollection collection)
{
lock (this._root)
{
this._collection.AddRange(collection);
}
return;
}
public virtual void AddRange(IndexSchemaCollection collection)
{
int num = 6;
Label_000D:
switch (num)
{
case 0:
if (collection.Count != 0)
{
num = 1;
}
else
{
num = 3;
}
goto Label_000D;
case 1:
if ((this._count + collection.Count) <= this._array.Length)
{
goto Label_00C9;
}
num = 2;
goto Label_000D;
case 2:
this.EnsureCapacity(this._count + collection.Count);
num = 5;
goto Label_000D;
case 3:
return;
case 4:
break;
case 5:
goto Label_00C9;
default:
if (collection != null)
{
num = 0;
}
else
{
num = 4;
}
goto Label_000D;
}
throw new ArgumentNullException("collection");
Label_00C9:
this._version++;
Array.Copy(collection.InnerArray, 0, this._array, this._count, collection.Count);
this._count += collection.Count;
}
public IndexSchemaCollection(IndexSchemaCollection collection)
{
if (collection == null)
{
throw new ArgumentNullException("collection");
}
this._array = new IndexSchema[collection.Count];
this.AddRange(collection);
}
public virtual object Clone()
{
IndexSchemaCollection schemas;
goto Label_0003;
Label_0003:
schemas = new IndexSchemaCollection(this._count);
Array.Copy(this._array, 0, schemas._array, 0, this._count);
schemas._count = this._count;
schemas._version = this._version;
return(schemas);
}
public override void Refresh()
{
base.Refresh();
this._primaryKey = null;
this._keys = null;
this._indexes = null;
this._columns = null;
this._nonPrimaryKeyColumns = null;
this._nonKeyColumns = null;
this._foreignKeys = null;
this._primaryKeys = null;
this._primaryKeyChecked = false;
base._extendedProperties = new ExtendedPropertyCollection(this._defaultExtendedProperties);
}
internal SyncList(IndexSchemaCollection collection) : base(IndexSchemaCollection.Tag.Default)
{
this._root = collection.SyncRoot;
this._collection = collection;
}
public override void AddRange(IndexSchemaCollection collection)
{
throw new NotSupportedException("Read-only collections cannot be modified.");
}
internal ReadOnlyList(IndexSchemaCollection collection) : base(IndexSchemaCollection.Tag.Default)
{
this._collection = collection;
}
internal Enumerator(IndexSchemaCollection collection)
{
this._collection = collection;
this._version = collection._version;
this._index = -1;
}
