/// <summary>
/// Gets the <see cref='System.Data.DataColumn'/> from the collection with the specified name.
/// </summary>
public DataColumn?this[string name]
{
get
{
if (null == name)
{
throw ExceptionBuilder.ArgumentNull(nameof(name));
}
DataColumn?column;
if ((!_columnFromName.TryGetValue(name, out column)) || (column == null))
{
// Case-Insensitive compares
int index = IndexOfCaseInsensitive(name);
if (0 <= index)
{
column = (DataColumn)_list[index] !;
}
else if (-2 == index)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
}
return(column);
}
}
/// <devdoc>
/// <para>Gets the <see cref='System.Data.Constraint'/> from the collection with the specified name.</para>
/// </devdoc>
public Constraint this[string name] {
get {
int index = InternalIndexOf(name);
if (index == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
return((index < 0) ? null : (Constraint)List[index]);
}
}
public override DataRelation this[string name] {
get {
int index = InternalIndexOf(name);
if (index == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
return((index < 0) ? null : (DataRelation)List[index]);
}
}
public DataTable this[string name, string tableNamespace] {
get {
if (tableNamespace == null)
{
throw ExceptionBuilder.ArgumentNull("tableNamespace");
}
int index = InternalIndexOf(name, tableNamespace);
if (index == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
return((index < 0) ? null : (DataTable)_list[index]);
}
}
/// <devdoc>
/// <para>Gets the table in the collection with the given name (not case-sensitive).</para>
/// </devdoc>
public DataTable this[string name] {
get {
int index = InternalIndexOf(name);
if (index == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
if (index == -3)
{
throw ExceptionBuilder.NamespaceNameConflict(name);
}
return((index < 0) ? null : (DataTable)_list[index]);
}
}
public Constraint this[string name]
{
get
{
int num = this.InternalIndexOf(name);
if (num == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
if (num >= 0)
{
return((Constraint)this.List[num]);
}
return(null);
}
}
public override DataRelation this[string name]
{
get
{
int num = base.InternalIndexOf(name);
if (num == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
if (num >= 0)
{
return((DataRelation)this.List[num]);
}
return(null);
}
}
/// <include file='doc\DataColumnCollection.uex' path='docs/doc[@for="DataColumnCollection.this1"]/*' />
/// <devdoc>
/// <para>Gets the <see cref='System.Data.DataColumn'/> from the collection with the specified name.</para>
/// </devdoc>
public virtual DataColumn this[string name] {
get {
DataColumn column = (DataColumn)columnFromName[name];
if (column != null)
{
return(column);
}
// Case-Insensitive compares
int index = IndexOfCaseInsensitive(name);
if (index == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
return((index < 0) ? null : (DataColumn)List[index]);
}
}
public DataTable this[string name, string tableNamespace]
{
get
{
if (tableNamespace == null)
{
throw ExceptionBuilder.ArgumentNull("tableNamespace");
}
int num = this.InternalIndexOf(name, tableNamespace);
if (num == -2)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
if (num >= 0)
{
return((DataTable)this._list[num]);
}
return(null);
}
}
public DataTable this[string name]
{
get
{
int num = this.InternalIndexOf(name);
switch (num)
{
case -2:
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
case -3:
throw ExceptionBuilder.NamespaceNameConflict(name);
}
if (num >= 0)
{
return((DataTable)this._list[num]);
}
return(null);
}
}
public DataColumn this[string name]
{
get
{
if (name == null)
{
throw ExceptionBuilder.ArgumentNull("name");
}
DataColumn column = this.columnFromName[name] as DataColumn;
if (column == null)
{
int num = this.IndexOfCaseInsensitive(name);
if (0 <= num)
{
return((DataColumn)this._list[num]);
}
if (-2 == num)
{
throw ExceptionBuilder.CaseInsensitiveNameConflict(name);
}
}
return(column);
}
}
