Class VisibleRowsGuarantee

Namespace

The.WPF.Screens

Assembly

Instagile.WPF.dll

Keeps a list or grid screen view's MinHeight in sync with the height needed to show the column headers, the horizontal scroll bar when present, and MinimumVisibleRows rows of its DataGrid. The MinHeight is also the view's natural height inside a section (the view caps its desire to it when measured with unbounded height, since further rows scroll), so it is both what an embedded collection takes by default and what stops the user shrinking its section below it.

public static class VisibleRowsGuarantee

Inheritance

object

VisibleRowsGuarantee

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Fields

InitialEstimate

MinHeight until the grid loads and the real metrics are known.

public const double InitialEstimate = 112

Field Value

double

LayoutRowHeightProperty

The height one row actually occupies in the current theme, grid lines included - the value the row-count reservation is built from. A theme author knows this (its MinRowHeight plus its grid line), whereas a live DataGrid does not until it has realised a row, which an empty grid - a common case - never does. Set on the DataGrid style; falls back to MinRowHeight when unset.

public static readonly DependencyProperty LayoutRowHeightProperty

Field Value

DependencyProperty

MinimumVisibleRows

How many rows a grid must always have room to show.

public const int MinimumVisibleRows = 4

Field Value

int

Methods

Attach(FrameworkElement, DataGrid, ScrollViewer)

public static void Attach(FrameworkElement view, DataGrid grid, ScrollViewer scrollViewer)

Parameters

view FrameworkElement

grid DataGrid

scrollViewer ScrollViewer

GetLayoutRowHeight(DependencyObject)

public static double GetLayoutRowHeight(DependencyObject element)

Parameters

element DependencyObject

Returns

double

SetLayoutRowHeight(DependencyObject, double)

public static void SetLayoutRowHeight(DependencyObject element, double value)

Parameters

element DependencyObject

value double