IndexOf(String,Boolean) メソッド

Gets the index of the Column with the specified name, optionally throwing an exception if the column is not found.

シンタックス

Visual Basic
C#

'宣言
 
Public Overloads Function IndexOf( _
   ByVal columnName As System.String, _
   ByVal throwIfNotFound As System.Boolean _
) As System.Integer

public System.int IndexOf( 
   System.string columnName,
   System.bool throwIfNotFound
)

パラメータ

columnName: Column name to look for (case-insensitive).
throwIfNotFound: Whether to throw and exception if the column cannot be found.

戻り値の型

Index of the column that has the given name in this collection, or -1 if the collection does not contain a column with the given name.

解説

If the parameter is set to true and a column named cannot be found, the control throws an System.ArgumentOutOfRangeException. This makes it easier to write compact code that relies on column names.

使用例

The example below uses the IndexOf method to convert column names into indices. Note that if the column names are invalid, the exception will be thrown by the IndexOf method (column not found) rather than in the following method, where it would not be as clear (invalid index).

int columnIndex = _flex.Cols.IndexOf("total");
_flex.AutoSizeCol(columnIndex);

参照

ColumnCollection クラス
 ColumnCollection メンバ
 オーバーロード一覧