Version

RefreshFilters Method (UltraGridLayout)

Reevaluates the filters on the rows.
Syntax
'Declaration
 
Public Sub RefreshFilters() 
public void RefreshFilters()
Remarks

Ultragrid does not evaluate the filter conditions on rows when data changes. This can be useful when the data has changed and you want the row filters conditions evaluated on the rows.

Example
Following sample code illustrates what RefreshFilters does and how it can be useful. It contains two button click handlers. Read the comments in those button click handlers for information on what they do. To test the sample code, click on the button associated with the first button click handler. You will notice in the ultragrid that one of the row doesn't match the filter criteria and is still visible. This is because we changed the row's value after filtering the rows. Now click the second button which calls RefreshFilters method to reapply the filters. This will hide the row that doesn't meet the filter criteria.

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinGrid

  Private Sub Button104_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button104.Click

      ' Following code filters rows and after rows are filtered, it changes the value of a
      ' row that passed the filter conditions to a value that doesn't pass the filter conditions.
      ' The row won't get filtered out. It will still be visible. To re-filter it out, you 
      ' have to call RefreshFilters method.

      ' Filter rows by Country to show only rows with Country equal UK
      Me.UltraGrid1.Rows.ColumnFilters("Country").FilterConditions.Add(FilterComparisionOperator.Equals, "UK")

      ' Now get the first visible row and then change the Country of that row to France. Remember
      ' Country field of all the visible rows after applying the filter above is UK.
      Dim firstVisibleRow As UltraGridRow = Me.UltraGrid1.Rows.GetRowAtVisibleIndex(0)

      ' Change the Country of the row to France. Once you click this button, you will see
      ' that the first row has it's Country equal to France and all the other rows are
      ' UK.
      firstVisibleRow.Cells("Country").Value = "France"

  End Sub

  Private Sub Button105_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button105.Click

      ' Call RefreshFilters to reevaluate the filter conditions so if the data has changed
      ' in rows they get re-filtered.
      Me.UltraGrid1.DisplayLayout.RefreshFilters()

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

private void button104_Click(object sender, System.EventArgs e)
{

	// Following code filters rows and after rows are filtered, it changes the value of a
	// row that passed the filter conditions to a value that doesn't pass the filter conditions.
	// The row won't get filtered out. It will still be visible. To re-filter it out, you 
	// have to call RefreshFilters method.

	// Filter rows by Country to show only rows with Country equal UK
	this.ultraGrid1.Rows.ColumnFilters["Country"].FilterConditions.Add( FilterComparisionOperator.Equals, "UK" );
	            
	// Now get the first visible row and then change the Country of that row to France. Remember
	// Country field of all the visible rows after applying the filter above is UK.
	UltraGridRow firstVisibleRow = this.ultraGrid1.Rows.GetRowAtVisibleIndex( 0 );

	// Change the Country of the row to France. Once you click this button, you will see
	// that the first row has it's Country equal to France and all the other rows are
	// UK.
	firstVisibleRow.Cells["Country"].Value = "France";

}

private void button105_Click(object sender, System.EventArgs e)
{

	// Call RefreshFilters to reevaluate the filter conditions so if the data has changed
	// in rows they get re-filtered.
	this.ultraGrid1.DisplayLayout.RefreshFilters( );			

}
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also