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CustomDrawRowHeaderIndentEventArgs.RowIndents Property

Gets a collection of row indents that are going to be painted.

Namespace: DevExpress.XtraVerticalGrid.Events

Assembly: DevExpress.XtraVerticalGrid.v24.2.dll

NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.VerticalGrid

#Declaration

public Indents RowIndents { get; }

#Property Value

Type Description
DevExpress.XtraVerticalGrid.ViewInfo.Indents

An Indents object representing the collection of painted row indents.

#Remarks

Each row header within a vertical grid contains indents. Indents are used to represent the data within the control in a tree like stucture. Indents are subdivided into two types (see the image below):

  • row indents which belong to editor or multi-editor rows;
  • category indents which belong only to category rows.

The RowIndents property provides access to the collection of painted row indents. Individual indents can be accessed using index notation.

Indents

#Example

The following sample code handles the VGridControlBase.CustomDrawRowHeaderCell and VGridControlBase.CustomDrawRowHeaderIndent events to custom paint the focused row header and its indents. If the focused row is a category row, it is painted in the default manner.

The image below shows the result.

CustomDraw_Focused_property

using System.Drawing.Drawing2D;
using DevExpress.XtraVerticalGrid.ViewInfo;
using DevExpress.XtraVerticalGrid.Events;

private void vGridControl1_CustomDrawRowHeaderCell(object sender, 
CustomDrawRowHeaderCellEventArgs e) {
     if(e.Row.XtraRowTypeID != 0 && e.Focused) {
        // Creates the brush which is used to fill the background of row headers.
        using(var backBrush = new LinearGradientBrush(e.Bounds, Color.Orange,
            e.Appearance.BackColor2, LinearGradientMode.Vertical))
            e.Cache.FillRectangle(backBrush, e.Bounds);
        // Paints the row header's caption.
        e.Cache.DrawString(e.Caption, e.Appearance.Font, Brushes.DarkBlue,
            e.CaptionRect, e.Appearance.GetStringFormat());
        // Paints the row header's image.
        e.Cache.DrawImage(imageList1.Images[0], e.ImageRect);
        e.Handled = true;
    }
}

private void vGridControl1_CustomDrawRowHeaderIndent(object sender, 
CustomDrawRowHeaderIndentEventArgs e) {
    VGridControl grid = sender as VGridControl;
    if(e.Row.XtraRowTypeID == 0)
        return;
    if(e.Row == grid.FocusedRow) {
        // Fills the category indent's background.
        foreach(IndentInfo indInfo in e.CategoryIndents)
            using(var categoryIndentBrush = new LinearGradientBrush(indInfo.Bounds,
                    indInfo.Style.BackColor, indInfo.Style.BackColor,
                    LinearGradientMode.Vertical))
                e.Cache.FillRectangle(categoryIndentBrush, indInfo.Bounds);
        // Fills the row indent's background.
        if(e.RowIndents.Count - 1 > -1) {
            for(int i = 0; i < e.RowIndents.Count - 1; i++)
                using(var rowIndentBrush = new LinearGradientBrush(e.RowIndents[i].Bounds,
                        e.RowIndents[i].Style.BackColor, e.RowIndents[i].Style.BackColor2,
                        LinearGradientMode.Vertical))
                    e.Cache.FillRectangle(rowIndentBrush, e.RowIndents[i].Bounds);
            // Creates the brush which is used to fill the background of row indents.
            using(var backBrush = new LinearGradientBrush(e.Bounds, Color.Orange,
            e.Appearance.BackColor2, LinearGradientMode.Vertical))
                e.Cache.FillRectangle(backBrush, e.RowIndents[e.RowIndents.Count - 1].Bounds);
        }
        e.Handled = true;
    }
}
See Also