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Class DataTableDataHelper

DataTable data source helper class

Inheritance
System.Object
DataHelper
DataTableDataHelper
Inherited Members
DataHelper.GetDoubleValue(Int32, Int32)
DataHelper.GetStringValue(Int32, Int32)
DataHelper.IsItemNumeric(Int32, Int32)
DataHelper.GetLabelsColumnIndex(Int32)
DataHelper.GetGroupsColumnIndex()
DataHelper.GetFilteredColumn(Int32)
DataHelper.GetSortedAndFilteredColumn(Int32)
DataHelper.GetValuesXColumnIndex()
DataHelper.GetValuesYColumnIndex()
DataHelper.GetValuesYColumns()
DataHelper.GetGanttValuesColumns()
DataHelper.IsNullableType(Type)
DataHelper.IsTypeNumeric(Type)
DataHelper.IsTypeString(Type)
DataHelper.IsValueString(Object)
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Telerik.Charting
Assembly: Telerik.WinControls.RadChart.dll

Syntax

public class DataTableDataHelper : DataHelper, ICommonDataHelper

Constructors

DataTableDataHelper(DataTable)

Default constructor

Declaration
public DataTableDataHelper(DataTable data)
Parameters
System.Data.DataTable data

DataTable objects as chart's data source

Properties

ColumnNameSupported

Returns true, because current data source supports columns naming

Declaration
public override bool ColumnNameSupported { get; }
Property Value
System.Boolean

Overrides
DataHelper.ColumnNameSupported

ColumnsCount

Gets the data source columns count

Declaration
public override int ColumnsCount { get; }
Property Value
System.Int32

Overrides
DataHelper.ColumnsCount

DataTable

Gets the DataTable object

Declaration
public DataTable DataTable { get; }
Property Value
System.Data.DataTable

RowsCount

Gets the data source rows count

Declaration
public override int RowsCount { get; }
Property Value
System.Int32

Overrides
DataHelper.RowsCount

Methods

GetColumnIndex(String)

Gets the column index by column name in the Data Source object

Declaration
public override int GetColumnIndex(string columnName)
Parameters
System.String columnName

Column name

Returns
System.Int32

Column index if column found or -1 if column not found

Overrides
DataHelper.GetColumnIndex(String)

GetColumnName(Int32)

Gets the column name

Declaration
public override string GetColumnName(int columnIndex)
Parameters
System.Int32 columnIndex

Column index

Returns
System.String

Overrides
DataHelper.GetColumnName(Int32)

GetObjectValue(Int32, Int32)

Return the object value at the given row and column

Declaration
public override object GetObjectValue(int rowIndex, int columnIndex)
Parameters
System.Int32 rowIndex

Row position index

System.Int32 columnIndex

Column index

Returns
System.Object

Object value at given column and row from data source

Overrides
DataHelper.GetObjectValue(Int32, Int32)

IsColumnNumeric(Int32)

Returns true if given column contains numeric values

Declaration
public override bool IsColumnNumeric(int columnIndex)
Parameters
System.Int32 columnIndex

Column index

Returns
System.Boolean

True if data source column contains numeric values

Overrides
DataHelper.IsColumnNumeric(Int32)

IsColumnString(Int32)

Returns true if given column contains string type values

Declaration
public override bool IsColumnString(int columnIndex)
Parameters
System.Int32 columnIndex

Column index

Returns
System.Boolean

True if data source column contains string values

Overrides
DataHelper.IsColumnString(Int32)

Extension Methods

SvgExtentions.Traverse<T>(T, Func<T, IEnumerable<T>>)
SvgExtentions.TraverseDepthFirst<T>(T, Func<T, IEnumerable<T>>)
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Copyright © 2018 Progress Software Corporation and/or its subsidiaries or affiliates.
All Rights Reserved.

Progress, Telerik, and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See Trademarks for appropriate markings.