BeginUpdate メソッド (C1PivotEngine)

Suspend automatic updates to the output table while defining the PivotEngine view.

シンタックス

Visual Basic
C#

'宣言
 
Public Sub BeginUpdate()

public void BeginUpdate()

解説

The PivotEngine updates the output table whenever the fields that make up the PivotEngine view change. Before making multiple changes (such as defining a new PivotEngine view), you can increase performance by enclosing the changes between calls to BeginUpdate and EndUpdate.

使用例

The code below shows how to define a new PivotEngine view efficiently by enclosing the changes between calls to BeginUpdate and EndUpdate.

// set data source (populates Fields list)
fp.DataSource = GetDataTable();
            
// prevent updates while building PivotEngine view
fp.BeginUpdate();
            
// show countries in rows
fp.RowFields.Add("Country");
            
// show categories and products in columns
fp.ColumnFields.Add("Category");
fp.ColumnFields.Add("Product");
            
// show total sales in cells
fp.ValueFields.Add("Sales");
            
// done defining the view
fp.EndUpdate();

参照

C1PivotEngine クラス
 C1PivotEngine メンバ