DashboardViewer.GetItemDataAsync(String) Method
Obtains the displayed data for the specified dashboard item asynchronously.
Namespace: DevExpress.DashboardWin
Assembly: DevExpress.Dashboard.v20.2.Win.dll
Declaration
public Task<MultiDimensionalData> GetItemDataAsync(
string dashboardItemName
)
Public Function GetItemDataAsync(
dashboardItemName As String
) As Task(Of MultiDimensionalData)
Parameters
Name | Type | Description |
---|---|---|
dashboardItemName | String | A String that specifies the component name of the dashboard item. |
Returns
Type | Description |
---|---|
Task<MultiDimensionalData> | The task object that is the asynchronous operation to get the data visualized in the dashboard item. |
Examples
This example demonstrates how to get the data displayed in the dashboard item asynchronously when the dashboard is loaded.
using DevExpress.DashboardCommon;
using DevExpress.XtraEditors;
using System;
using System.Threading.Tasks;
namespace DataCounterExample
{
public partial class ViewerForm1 : XtraForm {
public ViewerForm1() {
InitializeComponent();
dashboardViewer1.Initialized += OnDashboardViewerInitialized;
dashboardViewer1.MasterFilterSet += OnDashboardViewerMasterFilterSet;
dashboardViewer1.MasterFilterCleared += OnDashboardViewerMasterFilterCleared;
}
async void OnDashboardViewerInitialized(object sender, EventArgs e) {
simpleLabelItem1.Text = await GetLabelText("choroplethMapDashboardItem1", "Map");
simpleLabelItem2.Text = await GetLabelText("gridDashboardItem1", "Grid");
}
async void OnDashboardViewerMasterFilterSet(object sender, MasterFilterSetEventArgs e) {
simpleLabelItem2.Text = await GetLabelText("gridDashboardItem1", "Grid");
}
async void OnDashboardViewerMasterFilterCleared(object sender, MasterFilterClearedEventArgs e) {
simpleLabelItem2.Text = await GetLabelText("gridDashboardItem1", "Grid");
}
async Task<string> GetLabelText(string itemName, string itemCaption) {
var data = await dashboardViewer1.GetItemDataAsync(itemName);
int count = data.GetAxisPoints(data.GetAxisNames()[0]).Count;
return string.Format("{0}: {1}", itemCaption, count);
}
}
}
Implements
See Also
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