This example shows how to use a User Data object. First, load scripts:

@using Stimulsoft.Base
@using Stimulsoft.Report
@using Stimulsoft.Report.Blazor
@using Stimulsoft.Report.Web

Next, add report viewer:

<!--Report Viewer-->
<StiBlazorViewer Report="@Report" />

After that, create empty report object and load report template:

@code
{
    //Report object to use in Viewer
    private StiReport Report;

    protected override void OnInitialized()
    {
        base.OnInitialized();

        //Create report object and load template
        this.Report = new StiReport();
        this.Report.Load("Reports/UserData.mrt");

...

Next, create user data and register it in the report template:

...

	 	//Create user data
        var stiUserData1 = new Stimulsoft.Report.Dictionary.StiUserData();
        stiUserData1.Columns.AddRange(new Stimulsoft.Report.Dictionary.StiDataColumn[] {
            new Stimulsoft.Report.Dictionary.StiDataColumn("Name", "Name", "Name", typeof(string), null),
            new Stimulsoft.Report.Dictionary.StiDataColumn("Value", "Value", "Value", typeof(string), null)});
        stiUserData1.Count = 5;
        stiUserData1.GetData += new Stimulsoft.Report.Dictionary.StiUserGetDataEventHandler(stiUserData1_GetData);

        //Register new data in the report template
        this.Report.RegData("UserData", stiUserData1);
    }
	
...

Finally, use user data arrays:

...

	//User data arrays
    private string[] nameArray = new string[] { "Mahesh Chand", "Mike Gold", "Raj Beniwal", "Praveen Kumar", "Dinesh Beniwal" };
    private string[] valueArray = new string[] { "00", "01", "02", "03", "04" };

    private void stiUserData1_GetData(object sender, Stimulsoft.Report.Dictionary.StiUserGetDataEventArgs e)
    {
        if (e.ColumnName == "Name") e.Data = nameArray[e.Position];
        if (e.ColumnName == "Value") e.Data = valueArray[e.Position];
    }
}

In the screenshot below you can see the result of the sample code: