GridDashboardItem.Columns Property
Gets the collection of grid columns.
Namespace: DevExpress.DashboardCommon
Assembly: DevExpress.Dashboard.v24.1.Core.dll
NuGet Package: DevExpress.Dashboard.Core
Declaration
Property Value
| Type | Default | Description |
|---|---|---|
| GridColumnCollection | null | A collection of GridColumnBase descendants that represent grid columns. |
Remarks
The Columns collection elements contain data binding information and column display settings.
The GridDashboardItem supports the following columns:
- GridDimensionColumn - displays values in the bound data member “as is”.
- GridMeasureColumn - displays summaries calculated against data in the bound data member.
- GridDeltaColumn - binds to two data members, calculates summaries for both and displays the difference between these summaries.
- GridSparklineColumn - displays values in the bound data item using sparklines.
- GridHyperlinkColumn - allows you to display hyperlinks in the Grid dashboard item or use a Uri pattern to create hyperlinks for displayed values.
See the corresponding topics for more information.
Example
The following example demonstrates how to create Grid columns and bind a Grid dashboard item to data in code.
As a result, you get the Grid dashboard item with columns created at runtime.
using DevExpress.DashboardCommon;
using DevExpress.DataAccess.Excel;
using DevExpress.XtraEditors;
using System;
namespace Dashboard_CreateGrid {
public partial class Form1 : XtraForm {
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
// Creates the Excel data source.
DashboardExcelDataSource excelDataSource = new DashboardExcelDataSource();
excelDataSource = CreateExcelDataSource();
// Creates the Grid dashboard item and adds it to a dashboard.
Dashboard dashboard1 = new Dashboard();
dashboard1.DataSources.Add(excelDataSource);
GridDashboardItem grid = CreateGrid(excelDataSource);
dashboard1.Items.Add(grid);
dashboardViewer1.Dashboard = dashboard1;
// Reloads data in the data sources.
dashboardViewer1.ReloadData();
}
private GridDashboardItem CreateGrid(DashboardExcelDataSource dataSource) {
// Creates a grid dashboard item and specifies its data source.
GridDashboardItem grid = new GridDashboardItem();
grid.DataSource = dataSource;
// Creates new grid columns of the specified type and with the specified dimension or
// measure. Then, adds these columns to the grid's Columns collection.
grid.Columns.Add(new GridHyperlinkColumn(new Dimension("Product"), "Product")
{UriPattern= "https://www.google.com/search?q={0}" });
grid.Columns.Add(new GridDimensionColumn(new Dimension("Category")));
grid.Columns.Add(new GridMeasureColumn(new Measure("Count")));
grid.Columns.Add(new GridDeltaColumn(new Measure("Count"),
new Measure("TargetCount")));
grid.Columns.Add(new GridSparklineColumn(new Measure("Count")));
grid.SparklineArgument = new Dimension("Date", DateTimeGroupInterval.MonthYear);
grid.GridOptions.EnableBandedRows = true;
grid.GridOptions.ShowHorizontalLines = false;
return grid;
}
public DashboardExcelDataSource CreateExcelDataSource() {
// Generates the Excel Data Source.
DashboardExcelDataSource excelDataSource = new DashboardExcelDataSource();
excelDataSource.FileName = @"Data\SimpleDataSource.xls";
ExcelWorksheetSettings worksheetSettings = new ExcelWorksheetSettings("Simple Data", "A1:F12");
excelDataSource.SourceOptions = new ExcelSourceOptions(worksheetSettings);
excelDataSource.Fill();
return excelDataSource;
}
}
}
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the Columns property.
Note
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