CustomSummaryEventArgs.Item Property

Gets a summary item whose value is being calculated.

Namespace: DevExpress.Data

Assembly: DevExpress.Data.v19.2.dll

Declaration

C#

public object Item { get; }

VB.NET

Public ReadOnly Property Item As Object

Property Value

Type	Description
Object	An object representing a summary item whose value is being calculated.

Remarks

The actual type of returned object depends upon the control and summary type you use. Thus, you should typecast to access the summary item’s specific settings.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Item property.

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-immediately-update-gridview-states-after-a-cell-value-is-changed-e4300/CS/WindowsFormsApplication1/Form1.cs#L92

private void gridView1_CustomSummaryCalculate(object sender, DevExpress.Data.CustomSummaryEventArgs e) {
    if(e.Item is GridColumnSummaryItem) {
        GridView currentView = sender as GridView;

a-better-way-to-implement-a-frequently-used-custom-summary-weighted-averages-example-e892/CS/Form1.cs#L167

GridView view = sender as GridView;
if(e.Item == view.Columns["UnitPrice"].SummaryItem) {
    e.TotalValue = CustomSummaryHelper.GetWeightedAverage(view, "Quantity", "UnitPrice");

how-to-add-a-custom-summary-item-to-the-grids-footer-menu-e496/CS/Form1.cs#L74

{
    GridColumnSummaryItem item = e.Item as GridColumnSummaryItem;
    GridView view = sender as GridView;

VB.NET

how-to-immediately-update-gridview-states-after-a-cell-value-is-changed-e4300/VB/WindowsFormsApplication1/Form1.vb#L94

Private Sub gridView1_CustomSummaryCalculate(ByVal sender As Object, ByVal e As DevExpress.Data.CustomSummaryEventArgs) Handles gridView1.CustomSummaryCalculate
    If TypeOf e.Item Is GridColumnSummaryItem Then
        Dim currentView As GridView = TryCast(sender, GridView)

a-better-way-to-implement-a-frequently-used-custom-summary-weighted-averages-example-e892/VB/Form1.vb#L162

Dim view As GridView = TryCast(sender, GridView)
If e.Item Is view.Columns("UnitPrice").SummaryItem Then
    e.TotalValue = CustomSummaryHelper.GetWeightedAverage(view, "Quantity", "UnitPrice")

how-to-add-a-custom-summary-item-to-the-grids-footer-menu-e496/VB/Form1.vb#L73

Private Sub gridView1_CustomSummaryCalculate(ByVal sender As Object, ByVal e As DevExpress.Data.CustomSummaryEventArgs) Handles gridView1.CustomSummaryCalculate
    Dim item As GridColumnSummaryItem = TryCast(e.Item, GridColumnSummaryItem)
    Dim view As GridView = TryCast(sender, GridView)