XtraReport.Margins Property

using DevExpress.XtraReports.UI;

// ...

public static XtraReport CreateReport() {

    // Create an XtraReport instance
    XtraReport report = new XtraReport() {
        Name = "SimpleStaticReport",
        DisplayName = "Simple Static Report",
        PaperKind = PaperKind.Letter,
        Margins = new Margins(100, 100, 100, 100)
    };

    // Create a Detail band for the report
    DetailBand detailBand = new DetailBand() {
        HeightF = 25
    };

    // Add the created Detail band to the report
    report.Bands.Add(detailBand);

    // Create an XRLabel control for the report
    XRLabel helloWordLabel = new XRLabel() {
        Text = "Hello, World!",
        Font = new Font("Tahoma", 20f, FontStyle.Bold),
        BoundsF = new RectangleF(0, 0, 250, 50),
    };

    // Add the created XRLabel to the Detail band
    detailBand.Controls.Add(helloWordLabel);

    // Return the report with a band and a label on it
    return report;
}

Imports DevExpress.XtraReports.UI

' ...

Public Shared Function CreateReport() As XtraReport

    ' Create an XtraReport instance
    Dim report As New XtraReport() With {
        .Name = "SimpleStaticReport",
        .DisplayName = "Simple Static Report",
        .PaperKind = PaperKind.Letter,
        .Margins = New Margins(100, 100, 100, 100)
        }

    ' Create a Detail band for the report
    Dim detailBand As New DetailBand() With {
        .HeightF = 25
        }

    ' Add the created Detail band to the report
    report.Bands.Add(detailBand)

    ' Create an XRLabel control for the report
    Dim helloWordLabel As New XRLabel() With {
        .Text = "Hello, World!",
        .Font = New Font("Tahoma", 20F, FontStyle.Bold),
        .BoundsF = New RectangleF(0, 0, 250, 50)
        }

    ' Add the created XRLabel to the Detail band
    detailBand.Controls.Add(helloWordLabel)

    ' Return the report with a band and a label on it
    Return report
End Function