Interface IDataGridFormatProvider

Provides a mechanism for retrieving the record and column of an object to control formatting.

Inherited Members

System.ICustomFormatter.Format(System.String, System.Object, System.IFormatProvider)

System.IFormatProvider.GetFormat(System.Type)

Namespace: Syncfusion.WinForms.DataGrid

Assembly: Syncfusion.SfDataGrid.WinForms.dll

Syntax

public interface IDataGridFormatProvider : IFormatProvider, ICustomFormatter

Examples

The custom format provider which has derived from either IDataGridFormatProvider or IFormatProvider.

// Sets the format provider which has derived from the IDataGridFormatProvider provider
sfDataGrid1.Columns["OrderDate"].Format = new CustomFormatter();
// Sets the format provider which has derived from the IFormatProvider and ICustomFormatter.
sfDataGrid1.Columns["CustomerID"].Format = new Formatter();

Derive the format provider from IDataGridFormatProvider to customize based on the record and column information. The below example shows how to write custom format provider which derives from IDataGridFormatProvider ,

public class CustomFormatter : IDataGridFormatProvider
{
    public object Format(string format, GridColumn gridColumn, object record, object value)
    {
        if ((format == null) || (value == null))
        {
            throw new ArgumentNullException((value == null) ? "value" : "format");
        }
        if (gridColumn.MappingName == "CustomerID" &&
            record is OrderInfo && (record as OrderInfo).ShipCountry == "Canada")
        {
            string val = value.ToString();
            val = "Can-" + val;
            return val;
        }
        return value.ToString();
    }
    public object GetFormat(Type formatType)
    {
        return this;
    }
}

The below example shows how to write custom format provider which derives from IFormatProvider ,

public class CustomFormat : IFormatProvider, ICustomFormatter
{
    public string Format(string format, object arg, IFormatProvider formatProvider
    {
        if (format == "C")
        {
            int value = Convert.ToInt16(arg);
            if (value > 100)
                return "Maximum Value";
            else
                return "Minimum Value";
        }
        return arg.ToString();
    }
    public object GetFormat(Type formatType)
    {
        return this;
    }
}

Methods

Format(String, GridColumnBase, Object, Object)

Gets the formatted display text with custom format.

Declaration

object Format(string format, GridColumnBase gridColumn, object record, object value)

Parameters

Type	Name	Description
System.String	format	A format string.
GridColumnBase	gridColumn	The column that needs to set the format.
System.Object	record	The object of record.
System.Object	value	The cell display text value.

Returns

Type	Description
System.Object	Returns the formatted value.