GridView.IsValidRowHandle(Int32) Method

Indicates whether the specified row handle is valid.

Namespace: DevExpress.XtraGrid.Views.Grid

Assembly: DevExpress.XtraGrid.v19.2.dll

Declaration

C#

public override bool IsValidRowHandle(
    int rowHandle
)

VB.NET

Public Overrides Function IsValidRowHandle(
    rowHandle As Integer
) As Boolean

Parameters

Name	Type	Description
rowHandle	Int32	An integer value specifying the row’s handle.

Returns

Type	Description
Boolean	true if the specified row handle is valid; otherwise, false.

Remarks

This method returns false in the cases listed below:

• the row handle corresponds to a hidden auto filter row (the View’s GridOptionsView.ShowAutoFilterRow property is set to false);
• the row handle corresponds to a hidden new item row (the View’s GridOptionsView.NewItemRowPosition property is set to the NewItemRowPosition.None value);
• there isn’t any row with the specified handle.

For more information on row handles refer to the Rows topic.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the IsValidRowHandle(Int32) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-determine-whether-all-rows-are-expanded-or-collapsed-e2248/CS/IsFullExpandedOrCollapsed/Form1.cs#L29

for(int i = -1; i > int.MinValue; i--) {
    if(!view.IsValidRowHandle(i)) return true;
    if(view.IsGroupRow(i) && !view.GetRowExpanded(i)) return false;

how-to-hide-footers-based-on-the-number-of-rows-e4278/CS/HideableGroupRowFooters/CustomGridControl/MyGridViewInfo.cs#L136

k--;
if (View.IsValidRowHandle(k))
    if (View.IsGroupRow(k))

XPO_how-to-view-persistent-objects-in-the-xtragrid-and-edit-them-in-a-separate-window-e771/CS/FormEditOrder.cs#L39

e.Handled = true;
if(gvOrderDetails.IsValidRowHandle(gvOrderDetails.FocusedRowHandle)) {
    DeleteOrderDetail(gvOrderDetails.FocusedRowHandle);

how-to-apply-the-even-odd-row-appearance-feature-to-each-set-of-grouped-rows-separately-e1345/CS/S131432/Form1.cs#L39

GridView gView = (GridView)sender;
if(!gView.IsValidRowHandle(e.RowHandle)) return;
int parent = gView.GetParentRowHandle(e.RowHandle);

how-to-implement-the-accessible-named-grid-row-e552/CS/WindowsApplication210/CGrid.cs#L78

int rowHandle = this.AccessibleIndex2RowHandle(index);
if (!this.IsValidRowHandle(rowHandle))
{

VB.NET

how-to-determine-whether-all-rows-are-expanded-or-collapsed-e2248/VB/IsFullExpandedOrCollapsed/Form1.vb#L35

For i As Integer = -1 To Integer.MinValue + 1 Step -1
    If (Not view.IsValidRowHandle(i)) Then
        Return True

how-to-hide-footers-based-on-the-number-of-rows-e4278/VB/HideableGroupRowFooters/CustomGridControl/MyGridViewInfo.vb#L130

k -= 1
If View.IsValidRowHandle(k) Then
    If View.IsGroupRow(k) Then

how-to-apply-the-even-odd-row-appearance-feature-to-each-set-of-grouped-rows-separately-e1345/VB/S131432/Form1.vb#L36

Dim gView As GridView = CType(sender, GridView)
If Not gView.IsValidRowHandle(e.RowHandle) Then Return
Dim parent As Integer = gView.GetParentRowHandle(e.RowHandle)

how-to-implement-the-accessible-named-grid-row-e552/VB/WindowsApplication210/CGrid.vb#L87

Dim rowHandle As Integer = Me.AccessibleIndex2RowHandle(index)
If (Not Me.IsValidRowHandle(rowHandle)) Then
    Return Nothing

winforms-preserve-grid-state-on-refresh/VB/RefreshHelperClass.vb#L115

For i As Integer = -1 To Integer.MinValue + 1 Step -1
    If Not view.IsValidRowHandle(i) Then Exit For
    If view.GetRowExpanded(i) Then