Add(String) メソッド

新しいバインドされない列を列コレクションに追加します。

シンタックス

Visual Basic

'宣言
 
Public Overloads Function Add( _
   ByVal key As String _
) As UltraGridColumn

C#

public UltraGridColumn Add( 
   string key
)

パラメータ

key

コレクション内のオブジェクトを一意に識別する値。

戻り値の型

新しく追加された列。

使用例

Visual Basic

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinGrid
Imports System.Diagnostics

   Private Sub Button14_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button14.Click

       Dim band As UltraGridBand = Me.UltraGrid1.DisplayLayout.Bands(0)

       ' Check if the column has already been added.
       If Not band.Columns.Exists("UBColumn1") Then
           ' Add an unbound column with the key of "UBColumn1"
           band.Columns.Add("UBColumn1")
           band.Columns("UBColumn1").DataType = GetType(String)
       End If

       ' Loop through all the columns and print out the keys of the columns that are
       ' unbound. There will be only one such column since we've added only one unbound
       ' column above.
       Dim i As Integer
       For i = 0 To band.Columns.Count - 1
           ' IsBound indicates whether a column is a bound column or is an unbound column.
           If Not band.Columns(i).IsBound Then
               Debug.WriteLine(band.Columns(i).Key & " is an unbound column")
           Else
               ' Each bound column has a PropertyDescriptor associated with it. PropertyDescriptor is 
               ' associated with a column or field in the underlying data structure. The UltraGrid
               ' gets property descriptors through BindingManagerBase.GetItemProperties method.
               Dim pd As System.ComponentModel.PropertyDescriptor = band.Columns(i).PropertyDescriptor

               Debug.WriteLine(band.Columns(i).Key & " is a bound column. Property descriptor info: Name = " & pd.Name & ", Type = " & pd.PropertyType.Name)
           End If
       Next

   End Sub

C#

using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinGrid;
using System.Diagnostics;

private void button14_Click(object sender, System.EventArgs e)
{

	UltraGridBand band = this.ultraGrid1.DisplayLayout.Bands[0];

	// Check if the column has already been added.
	if ( !band.Columns.Exists( "UBColumn1" ) )
	{	
		// Add an unbound column with the key of "UBColumn1"				
		band.Columns.Add( "UBColumn1" );
		band.Columns["UBColumn1"].DataType = typeof( string );
	}

	// Loop through all the columns and print out the keys of the columns that are
	// unbound. There will be only one such column since we've added only one unbound
	// column above.
	for ( int i = 0; i < band.Columns.Count; i++ )
	{
		// IsBound indicates whether a column is a bound column or is an unbound column.
		if ( !band.Columns[i].IsBound )
		{
			Debug.WriteLine( band.Columns[i].Key + " is an unbound column" );
		}
		else
		{
			// Each bound column has a PropertyDescriptor associated with it. PropertyDescriptor is 
			// associated with a column or field in the underlying data structure. The UltraGrid
			// gets property descriptors through BindingManagerBase.GetItemProperties method.
			System.ComponentModel.PropertyDescriptor pd = band.Columns[i].PropertyDescriptor;

			Debug.WriteLine( band.Columns[i].Key + " is a bound column. Property descriptor info: Name = " + pd.Name + ", Type = " + pd.PropertyType.Name );
		}
	}

}