Class GridCellModelBase

Defines the data or model part of a cell type. Settings can be serialized out to a file together with a GridModel.

Inheritance

System.Object

NonFinalizeDisposable

Disposable

GridCellModelBase

XhtmlCellModel

GridCheckBoxCellModel

GridDataBoundRowExpandCellModel

GridPushButtonCellModel

GridRichTextBoxCellModel

GridStaticCellModel

GridTableIndentCellModel

PivotRowExpandCellModel

Implements

System.Runtime.Serialization.ISerializable

System.IDisposable

Inherited Members

NonFinalizeDisposable.Dispose(Boolean)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Syncfusion.Windows.Forms.Grid

Assembly: Syncfusion.Grid.Windows.dll

Syntax

public class GridCellModelBase : Disposable, ISerializable, IDisposable

Remarks

You typically access cell models through the CellModels property of the GridModel class.

A GridCellModelBase can serve as model for several GridCellRendererBase instances if there are several GridControlBase views for a GridModel. The following table illustrates the built-in cell model types available in Essential Grid.

Cell Types	Description
CheckBox	Sets the specified cell as "CheckBox" in the grid, which returns the check state of that specified cell. Refer the GridCheckBoxCellModel and GridCheckBoxCellRenderer class.
ColorEdit	Sets the specified cell to edit the backcolor of the cell. The range of colors can be chosen from either the Color palette,Web or System tabs in the drop-down menu. Refer the GridDropDownColorUICellModel and GridDropDownColorUICellRenderer class.
ComboBox	Sets a Combo-box embedded in the specified grid cell, where a specified data source can be assigned and also the button visibility can be modified. Refer the GridComboBoxCellModel and GridComboBoxCellRenderer class.
Control	Embeds a generic control withe the grid cell. Refer the GridGenericControlCellModel and GridGenericControlCellRenderer class.
Currency	Embeds a currency edit cell. The values entered in this cell are prefixed with a specified currency-symbol. Refer the GridCurrencyTextBoxCellModel and GridCurrencyTextBoxCellRenderer class.
DropDownGrid	Sets a Grid in the drop-down container. See "Drop-Down grid" in the samples. Also refer the GridDropDownGridCellModel and GridDropDownGridCellRenderer class.
FormulaCell	Gets a formula cell that can be used for various computational operations in the grid using the library functions. Also, a custom-function can be added to the library functions to meet the required need. Refer the GridFormulaCellModel and GridFormulaCellRenderer class.
GridListControl	Embeds a GridListControl in the specified cell. Refer the GridDropDownGridListControlCellModel and GridDropDownGridListControlCellRenderer class.
Header	Specifies the cell as Header cell. Refer the GridHeaderCellModel and GridHeaderCellRenderer class.
Image	Specifies the cell as an Image cell, where a required image can be displayed on the grid. Refer the GridImageCellModel and GridImageCellRenderer class.
MaskEdit	Specifies the textbox as a masked-edit textbox, where specified criteria can be set to validate the user inputs. Refer the GridMaskEditCellModel and GridMaskEditCellRenderer and GridMaskedEditBoxclass.
MonthCalendar	Gets a month-calendar control for acquiring a "Date" input from the grid cell. Refer the GridDropDownMonthCalendarCellModel and GridDropDownMonthCalendarCellRenderer class.
NumericUpDown	Embeds a Numeric up-down control in the specified grid cell. The increment and decrement values as well as the Minimum and Maximum number-count possible can also be modified as per the need. Refer the GridNumericUpDownCellModel and GridNumericUpDownCellRenderer class.
OriginalTextBox	Sets the specified cell as "OriginalTextBox", that provides a multi-line text box. Refer the GridOriginalTextBoxCellModel and GridOriginalTextBoxCellRenderer class.
ProgressBar	Embeds a progress bar control in the specified cell. Refer the GridProgressBarCellModel and GridProgressBarCellRenderer class.
PropertyGridCell	Sets the specified cell as property-grid, that displays the property's values in the grid. Refer the GridPropertyGridCellModel and GridPropertyGridCellRenderer class.
PushButton	Sets the specified cell as "PushButton" control. The cell appearance can also be modified. Refer the GridPushButtonCellModel and GridPushButtonCellRenderer class.
RadioButton	Sets the specified cell as "RadioButton" control. Refer the GridRadioButtonCellModel and GridRadioButtonCellRenderer class.
RichText	Sets the specified cell as a "RichTextBox" control. The contents of the cell can also be formated such as Alignment, Bold or Italics or Under lined, Font size as well as font color and font type. Refer the GridRichTextBoxCellModel and GridRichTextBoxCellRenderer class.
Static	Sets the specified cell in an in-active state and the contents of the specified cell is non-editable. Refer the GridStaticCellModel and GridStaticCellRenderer class.
TextBox	Sets the specified cell as"TextBox" control. The default cell model of every grid cell is a TextBox model. Refer the GridTextBoxCellModel and GridTextBoxCellRenderer class.
UITypeEditorCell	Specifies the cell as UI-type editor cell that provides a "list-control" like grid. Refer the GridUITypeEditorCellModel and GridUITypeEditorCellRenderer class.

Constructors

GridCellModelBase(GridModel)

Initializes a new GridCellModelBase object and stores a reference to the GridModel this cell belongs to.

Declaration

public GridCellModelBase(GridModel grid)

Parameters

Type	Name	Description
GridModel	grid	The GridModel that owns this model.

GridCellModelBase(SerializationInfo, StreamingContext)

Initializes a new GridCellModelBase from a serialization stream.

Declaration

protected GridCellModelBase(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
System.Runtime.Serialization.SerializationInfo	info	An object that holds all the data needed to serialize or deserialize this instance.
System.Runtime.Serialization.StreamingContext	context	Describes the source and destination of the serialized stream specified by info.

Properties

BindingContext

Gets or sets the BindingContext for this object. You can assign a BindingContext form a parent form to this property.

Declaration

public BindingContext BindingContext { get; set; }

Property Value

Type
System.Windows.Forms.BindingContext

ButtonBarSize

Gets or sets the total size of any buttons.

Declaration

public Size ButtonBarSize { get; set; }

Property Value

Type
System.Drawing.Size

Remarks

Set size.Height to int.MaxValue if button should fill cell and not be vertically aligned with text.

Description

Gets a description of the cell type.

Declaration

public virtual string Description { get; }

Property Value

Type
System.String

ForceCoveredCellFullBounds

Gets or sets a value indicating whether covered cells need to be drawn passing in the complete coordinates of the covered cell even if parts of the covered cell are above the current view.

Declaration

public bool ForceCoveredCellFullBounds { get; set; }

Property Value

Type
System.Boolean

Remarks

If you expect your cell type to be used in a scenario where a cell can span over 100s of rows, you should set this property to true and provide an optimized draw routine in the cell renderer that accepts a clipped rectangle.

The GridGroupingControls GridNestedTableControl uses this flag to optimize drawing of nested tables. Nested tables are all drawn in a child cell and can span thousands of rows. Instead of calculating the whole rectangle for the nested cell, the grid can pass in just the visible bounds. This improves performance of these nested cells a lot.

Grid

Gets a reference to the GridModel.

Declaration

public GridModel Grid { get; }

Property Value

Type
GridModel

IsDisposed

Gets a value indicating whether the object has been disposed.

Declaration

public bool IsDisposed { get; }

Property Value

Type
System.Boolean

IsDisposing

Gets a value indicating whether the object is executing Dispose() method call.

Declaration

public bool IsDisposing { get; }

Property Value

Type
System.Boolean

MeasureEmptyCellString

Gets or sets the string which is used when doing a resize to fit for cells with empty text.

Declaration

public static string MeasureEmptyCellString { get; set; }

Property Value

Type
System.String

SerializeSchemeVersion

Gets the version information when cell model is deserialized.

Declaration

public int SerializeSchemeVersion { get; }

Property Value

Type
System.Int32

Methods

ApplyFormattedText(GridStyleInfo, String, Int32)

Parses the display text and converts it into a cell value to be stored in the style object. GridStyleInfo.CultureInfo is used for parsing the string.

Declaration

public virtual bool ApplyFormattedText(GridStyleInfo style, string text, int textInfo)

Parameters

Type	Name	Description
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
System.String	text	The input text to be parsed.
System.Int32	textInfo	TextInfo is a hint of who is calling, default is GridCellBaseTextInfo.DisplayText

Returns

Type	Description
System.Boolean	True if value was parsed correctly and saved in style object as CellValue; False otherwise.

ApplyText(GridStyleInfo, String)

Parses the text and converts it into a cell value to be stored in the style object (ignoring any Format settings). CultureInfo.CurrentText is used for parsing the string.

Declaration

public virtual bool ApplyText(GridStyleInfo style, string text)

Parameters

Type	Name	Description
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
System.String	text	The input text to be parsed.

Returns

Type	Description
System.Boolean	True if value was parsed correctly and saved in style object as CellValue; False otherwise.

CalculatePreferredCellSize(Graphics, Int32, Int32, GridStyleInfo, GridQueryBounds)

Calculates the preferred size of the cell based on its contents, including margins and any buttons.

Declaration

public virtual Size CalculatePreferredCellSize(Graphics g, int rowIndex, int colIndex, GridStyleInfo style, GridQueryBounds queryBounds)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	The System.Drawing.Graphics context of the canvas.
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
GridQueryBounds	queryBounds	Vertical or horizontal

Returns

Type	Description
System.Drawing.Size	The optimal size of the cell.

CreateCopy(GridModel)

Creates a copy of this cell model for another GridModel.

Declaration

public virtual GridCellModelBase CreateCopy(GridModel gridModel)

Parameters

Type	Name	Description
GridModel	gridModel	The GridModel for the new control.

Returns

Type	Description
GridCellModelBase	Returns the instance of the grid model

CreateRenderer(GridControlBase)

Creates a renderer for this cell model that is specific to the GridControlBase.

Declaration

public virtual GridCellRendererBase CreateRenderer(GridControlBase control)

Parameters

Type	Name	Description
GridControlBase	control	The GridControlBase the cell renderer is created for.

Returns

Type	Description
GridCellRendererBase	A new GridCellRendererBase specific for a GridControlBase.

Remarks

You must override this method in your implementation of GridCellModelBase.

Dispose()

Releases the all resources used by the component.

Declaration

public void Dispose()

GetActiveText(Int32, Int32)

Declaration

public string GetActiveText(int rowIndex, int colIndex)

Parameters

Type	Name	Description
System.Int32	rowIndex
System.Int32	colIndex

Returns

Type
System.String

GetCellClientSize(Int32, Int32, GridStyleInfo)

Declaration

public Size GetCellClientSize(int rowIndex, int colIndex, GridStyleInfo style)

Parameters

Type	Name	Description
System.Int32	rowIndex
System.Int32	colIndex
GridStyleInfo	style

Returns

Type
System.Drawing.Size

GetCellSize(Int32, Int32)

Declaration

public Size GetCellSize(int rowIndex, int colIndex)

Parameters

Type	Name	Description
System.Int32	rowIndex
System.Int32	colIndex

Returns

Type
System.Drawing.Size

GetFormattedOrActiveTextAt(Int32, Int32, GridStyleInfo)

Returns the display text of the specified cell. If it is the current cell the active text is returned.

Declaration

public string GetFormattedOrActiveTextAt(int rowIndex, int colIndex, GridStyleInfo style)

Parameters

Type	Name	Description
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.

Returns

Type	Description
System.String	A System.String with the display text of the specified cell.

GetFormattedText(GridStyleInfo, Object, Int32)

This is called from GridStyleInfo.GetFormattedText. GridStyleInfo.CultureInfo is used for conversion to string.

Declaration

public virtual string GetFormattedText(GridStyleInfo style, object value, int textInfo)

Parameters

Type	Name	Description
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
System.Object	value	The value to format.
System.Int32	textInfo	TextInfo is a hint of who is calling, default is GridCellBaseTextInfo.DisplayText.

Returns

Type	Description
System.String	The formatted text for the given value.

GetLocalizedString(String)

Returns a localized string from the SR.txt resource file.

Declaration

protected virtual string GetLocalizedString(string value)

Parameters

Type	Name	Description
System.String	value	The key to look up.

Returns

Type	Description
System.String	The localized string.

GetObjectData(SerializationInfo, StreamingContext)

Implements the ISerializable interface and returns the data needed to serialize the cell model.

Declaration

public virtual void GetObjectData(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
System.Runtime.Serialization.SerializationInfo	info	A SerializationInfo object containing the information required to serialize the cell model.
System.Runtime.Serialization.StreamingContext	context	A StreamingContext object containing the source and destination of the serialized stream.

GetPropertyDescriptor(GridStyleInfo)

Returns GridStyleInfo.PropertyDescriptor.

Declaration

public virtual PropertyDescriptor GetPropertyDescriptor(GridStyleInfo style)

Parameters

Type	Name	Description
GridStyleInfo	style	The style object

Returns

Type	Description
System.ComponentModel.PropertyDescriptor	A PropertyDescriptor

GetText(GridStyleInfo, Object)

This is called from GridStyleInfo.GetText (ignoring any Format settings). CultureInfo.CurrentText is used for conversion to string.

Declaration

public virtual string GetText(GridStyleInfo style, object value)

Parameters

Type	Name	Description
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
System.Object	value	The value to convert to a string.

Returns

Type	Description
System.String	The string that represents the given value.

GetTypeConverter(GridStyleInfo)

Returns a TypeConverter with type information about the style.CellValue.

Declaration

public virtual TypeConverter GetTypeConverter(GridStyleInfo style)

Parameters

Type	Name	Description
GridStyleInfo	style	The style object

Returns

Type	Description
System.ComponentModel.TypeConverter	A TypeConverter

MeasureSampleWString(Graphics, Font)

Gets the preferred size to be used for an empty cell.

Declaration

public static Size MeasureSampleWString(Graphics g, Font font)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	The System.Drawing.Graphics context of the canvas.
System.Drawing.Font	font	The System.Drawing.Font to be used.

Returns

Type	Description
System.Drawing.Size	The System.Drawing.Size of the given string specified with it's font type.

OnActiveTextChanged(GridCellEventArgs)

Recalculates floating cell state and raises the ActiveTextChanged event.

Declaration

protected virtual void OnActiveTextChanged(GridCellEventArgs e)

Parameters

Type	Name	Description
GridCellEventArgs	e	A GridCellEventArgs with event data.

OnBindingContextChanged(EventArgs)

Called when the BindingContext property was changed.

Declaration

protected virtual void OnBindingContextChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	An empty EventArgs

OnModelDeserialization(Object, GridModel)

Called from GridModel implementation of IDeserializationCallback.OnDeserialization.

Declaration

protected virtual void OnModelDeserialization(object sender, GridModel model)

Parameters

Type	Name	Description
System.Object	sender	The source of the event.
GridModel	model	The GridModel that was deserialized.

OnQueryCanFloatCell(Int32, Int32, GridStyleInfo, GridQueryFloatCell)

Determines whether the cell supports floating over a neighboring cell or can be flooded by a previous cell.

Declaration

public virtual bool OnQueryCanFloatCell(int rowIndex, int colIndex, GridStyleInfo style, GridQueryFloatCell query)

Parameters

Type	Name	Description
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
GridQueryFloatCell	query	A GridQueryFloatCell value that specifies whether a cell is asked about support for floating over another cell or being flooded by a previous cell.

Returns

Type	Description
System.Boolean	True if floating is possible; False otherwise.

OnQueryCanMergeCell(Int32, Int32, GridStyleInfo, GridMergeCellDirection)

Determines whether the cell supports merging of neighboring cells.

Declaration

public virtual bool OnQueryCanMergeCell(int rowIndex, int colIndex, GridStyleInfo style, GridMergeCellDirection mergeCellDirection)

Parameters

Type	Name	Description
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
GridMergeCellDirection	mergeCellDirection	Specifies if rows or columns should be merged.

Returns

Type	Description
System.Boolean	True if merging is possible; False otherwise.

OnQueryPrefferedClientSize(Graphics, Int32, Int32, GridStyleInfo, GridQueryBounds)

Calculates the preferred size of the cell based on its contents without margins and any buttons.

Declaration

protected virtual Size OnQueryPrefferedClientSize(Graphics g, int rowIndex, int colIndex, GridStyleInfo style, GridQueryBounds queryBounds)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	The System.Drawing.Graphics context of the canvas.
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
GridQueryBounds	queryBounds	Graphical bounds

Returns

Type	Description
System.Drawing.Size	The optimal size of the cell.

ResetActiveText(Int32, Int32)

Reset the active text to its original state.

Declaration

public void ResetActiveText(int rowIndex, int colIndex)

Parameters

Type	Name	Description
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.

SetActiveText(Int32, Int32, String)

Changes the active text for the cell model.

Declaration

public void SetActiveText(int rowIndex, int colIndex, string text)

Parameters

Type	Name	Description
System.Int32	rowIndex	The row index.
System.Int32	colIndex	The column index.
System.String	text	The new text for the cell.

Examples

This example shows how to set the text in a given cell index.

void gridControl1_CellClick(object sender, GridCellClickEventArgs e)
{
    string text="GridControl";
    this.gridControl1.CurrentCell.Model.SetActiveText(e.RowIndex, e.ColIndex, text);
}

Private Sub gridControl1_CellClick(ByVal sender As Object, ByVal e As GridCellClickEventArgs)
    Dim text As String="Active Text"
    Me.gridControl1.CurrentCell.Model.SetActiveText(e.RowIndex, e.ColIndex, text)
End Sub

SubtractBorders(Rectangle, GridStyleInfo)

Removes border margins from a given cell rectangle. The borders are determined from a specified style with cell content information.

Declaration

[Obsolete("It is recommended to specify isRightToLeft parameter, default for isRightToLeft is false.")]
public Rectangle SubtractBorders(Rectangle cellBounds, GridStyleInfo style)

Parameters

Type	Name	Description
System.Drawing.Rectangle	cellBounds	The System.Drawing.Rectangle with the cell bounds.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.

Returns

Type	Description
System.Drawing.Rectangle	The System.Drawing.Rectangle with the cell bounds excluding its borders.

Remarks

calls GridMargins.RemoveMargins(cellBounds, StyleInfoBordersToMargins(style));

Examples

This example shows how to remove the border margins from given cell rectangle.

void gridControl1_CellClick(object sender, GridCellClickEventArgs e)
{
    //Removes border margins from a given cell rectangle.
    GridRangeInfo range = this.gridControl1.Model.CoveredRanges.FindRange(e.RowIndex, e.ColIndex);
    Rectangle rect = this.gridControl1.RangeInfoToRectangle(range);
    this.gridControl1.CurrentCell.Model.SubtractBorders(rect, style, true); 
}

Private Sub gridControl1_CellClick(ByVal sender As Object, ByVal e As GridCellClickEventArgs)
   'Removes border margins from a given cell rectangle.
    Dim range As GridRangeInfo = Me.gridControl1.Model.CoveredRanges.FindRange(e.RowIndex, e.ColIndex)
    Dim rect As Rectangle = Me.gridControl1.RangeInfoToRectangle(range)
    Me.gridControl1.CurrentCell.Model.SubtractBorders(rect, style, True)
End Sub

SubtractBorders(Rectangle, GridStyleInfo, Boolean)

Removes border margins from a given cell rectangle. The borders are determined from a specified style with cell content information.

Declaration

public Rectangle SubtractBorders(Rectangle cellBounds, GridStyleInfo style, bool isRightToLeft)

Parameters

Type	Name	Description
System.Drawing.Rectangle	cellBounds	The System.Drawing.Rectangle with the cell bounds.
GridStyleInfo	style	The GridStyleInfo object that holds cell information.
System.Boolean	isRightToLeft	Indicates if grid is in RightToLeft mode.

Returns

Type	Description
System.Drawing.Rectangle	The System.Drawing.Rectangle with the cell bounds excluding its borders.

Remarks

Calls GridMargins.RemoveMargins(cellBounds, StyleInfoBordersToMargins(style));

Events

ActiveTextChanged

Occurs when active text has been changed.

Declaration

public event GridCellEventHandler ActiveTextChanged

Event Type

Type
GridCellEventHandler

Implements

System.Runtime.Serialization.ISerializable

System.IDisposable