ES-975464 - Resolve the ReadMe file length issue in this sample repository

Author: SreemonPremkumarM

README.md

@@ -1,2 +1,21 @@
-# How to create custom column in winforms datagrid?
-This repositories contains the samples to create custom column in winforms datagrid
+# How to create custom column in winforms datagrid
+
+This repositories contains the samples to create custom column in [WinForms DataGrid](https://www.syncfusion.com/winforms-ui-controls/datagrid).
+
+You can create a new column by deriving [GridColumn](https://help.syncfusion.com/cr/windowsforms/Syncfusion.WinForms.DataGrid.GridColumn.html) and create new a cell renderer by overriding the predefined renderer in `SfDataGrid`. The following steps describe how to create a sparkline column as a custom column.
+
+### Creating custom column
+
+You can create a custom column by overriding a new class from the `GridColumn` class.
+
+### Creating renderer
+
+After creating a custom column, you need to create renderer for the custom column. You can create custom renderer by deriving the [GridCellRendererBase](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.Grid.GridCellRendererBase.html) class.
+
+### Adding the custom renderer to CellRenderers collection
+
+By using the following code, you can add the previous created custom renderer to the [SfDataGrid.CellRenderers](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.Grid.GridCellRendererCollection.html) collection.
+
+### Loading custom column
+
+By using the following code, you can define the custom column in SfDataGrid.