Class GridColumnSizer
Represents a class that handles the sizing for all the GridColumns in the Columns collection in a SfDataGrid control.
Inheritance
Implements
Namespace: Syncfusion.SfDataGrid
Assembly: Syncfusion.SfDataGrid.iOS.dll
Syntax
public class GridColumnSizer : Object, IDisposableConstructors
GridColumnSizer()
Initializes a new instance of the GridColumnSizer class.
Declaration
public GridColumnSizer()GridColumnSizer(SfDataGrid)
Initializes a new instance of the GridColumnSizer class using the specified SfDataGrid instance,.
Declaration
public GridColumnSizer(SfDataGrid grid)Parameters
| Type | Name | Description |
|---|---|---|
| SfDataGrid | grid | The reference of the SfDataGrid. |
Properties
DataGrid
Gets the current instance of the SfDataGrid.
Declaration
public SfDataGrid DataGrid { get; }Property Value
| Type | Description |
|---|---|
| SfDataGrid | The current instance of the SfDataGrid. |
Methods
CalculateCellSize(CGSize, GridColumn, Object, GridQueryBounds, Double)
Gets the size of the cell to measure the width of the specified column.
Declaration
protected virtual CGSize CalculateCellSize(CGSize currentCellSize, GridColumn column, object data, GridQueryBounds bounds, double measuredWidth)Parameters
| Type | Name | Description |
|---|---|---|
| CoreGraphics.CGSize | currentCellSize | size of the cell. |
| GridColumn | column | The corresponding column to measure its cell size. |
| System.Object | data | The corresponding data to measure text size in cell. |
| GridQueryBounds | bounds | Indicates a value whether to measure width or height. |
| System.Double | measuredWidth | Measured width. |
Returns
| Type | Description |
|---|---|
| CoreGraphics.CGSize | Returns the size of the cell. |
Dispose()
Perform final clean up before it is released from memory.
Declaration
public void Dispose()Dispose(Boolean)
Releases the unmanaged resources used by the component and optionally releases the managed resources.
Declaration
protected virtual void Dispose(bool disposing)Parameters
| Type | Name | Description |
|---|---|---|
| System.Boolean | disposing | if true - release both managed and unmanaged resources; if false - release only unmanaged resources. |
GetColumnAutoSizeWidth(GridColumn)
Gets the width required to auto-fit the given column based on its content.
Declaration
protected virtual double GetColumnAutoSizeWidth(GridColumn column)Parameters
| Type | Name | Description |
|---|---|---|
| GridColumn | column | The column for which width has to be calculated. |
Returns
| Type | Description |
|---|---|
| System.Double | Returns the width required to auto-fit the given column based on its content. |
GetColumnToFill()
Gets the column to fill the remaining view port size based on ColumnSizer.
Declaration
protected virtual GridColumn GetColumnToFill()Returns
| Type | Description |
|---|---|
| GridColumn | the column to fill. |
GetHeaderCellWidth(GridColumn)
Gets the width required to auto-fit the given column based on its header content.
Declaration
protected virtual double GetHeaderCellWidth(GridColumn column)Parameters
| Type | Name | Description |
|---|---|---|
| GridColumn | column | The column for which width has to be calculated. |
Returns
| Type | Description |
|---|---|
| System.Double | Returns the width required to auto-fit the given column based on its header content. |
OnColumnPropertyChanged(GridColumn, String)
Represents the method that will handle the property changes in grid columns.
Declaration
protected virtual void OnColumnPropertyChanged(GridColumn column, string propertyName)Parameters
| Type | Name | Description |
|---|---|---|
| GridColumn | column | A GridColumn object. |
| System.String | propertyName | The property name. |
Refresh(Boolean)
Refreshes the GridColumns in the view.
Declaration
public void Refresh(bool needsLayout = true)Parameters
| Type | Name | Description |
|---|---|---|
| System.Boolean | needsLayout | A boolean value specifying whether layout is needed. |
ResetAutoWidth(GridColumn)
Resets the auto width for the specified column.
Declaration
public void ResetAutoWidth(GridColumn column)Parameters
| Type | Name | Description |
|---|---|---|
| GridColumn | column | The corresponding column to reset the auto width. |
Remarks
The column width is reset to double.Nan, if the column sizing needs to be recalculate based on the data.
Exceptions
| Type | Condition |
|---|---|
| System.InvalidOperationException | Thrown when the column is null. |
SetAutoWidth(GridColumn, Double)
Sets the width for the specified column based on ColumnSizer value as Auto.
Declaration
protected void SetAutoWidth(GridColumn column, double width)Parameters
| Type | Name | Description |
|---|---|---|
| GridColumn | column | The corresponding column to set Auto width. |
| System.Double | width | The corresponding width set as Auto width. |
Exceptions
| Type | Condition |
|---|---|
| System.InvalidOperationException | Thrown when the column is null. |
SetStarWidthForColumns(Double, IEnumerable<GridColumn>)
Sets star width for the remaining columns for which the widths are yet to be assigned.
Declaration
protected virtual void SetStarWidthForColumns(double columnsWidth, IEnumerable<GridColumn> columns)Parameters
| Type | Name | Description |
|---|---|---|
| System.Double | columnsWidth | The width of the columns. |
| System.Collections.Generic.IEnumerable<GridColumn> | columns | The collection of remaining GridColumn. |