How to get a cell value in DetailsViewDataGrid in DataGrid(SfDataGrid)?

About the sample

This example illustrates how to get a cell value in DetailsViewDataGrid in DataGrid(SfDataGrid)?

Getting the cell value by using cell click event

Get the cell value of nested level DetailsViewDataGrid by using the SfDataGrid.CellClick event.

(this.sfDataGrid1.DetailsViewDefinitions[0] as GridViewDefinition).DataGrid.CellClick += DataGrid_CellClick;

(this.childGrid.DetailsViewDefinitions[0] as GridViewDefinition).DataGrid.CellClick += childGrid_CellClick;

private void childGrid_CellClick(object sender, CellClickEventArgs e)
{
        // Get the row index value        
        var rowIndex = e.DataRow.RowIndex;
        //Get the column index value
        var columnIndex = e.DataColumn.ColumnIndex;
        //Get the cell value            
        var cellValue = (e.OriginalSender as DetailsViewDataGrid).View.GetPropertyAccessProvider().GetValue(e.DataRow.RowData, e.DataColumn.GridColumn.MappingName);
        MessageBox.Show("Cell Value \t:    " + cellValue + "\n" + "Row Index \t:    " + rowIndex + "\n" + "Column Index \t:    " + columnIndex, "Cell Value");
}

private void DataGrid_CellClick(object sender, CellClickEventArgs e)
{
       // Get the row index value        
       var rowIndex = e.DataRow.RowIndex;
       //Get the column index value
       var columnIndex = e.DataColumn.ColumnIndex;
       //Get the cell value            
       var cellValue = (e.OriginalSender as DetailsViewDataGrid).View.GetPropertyAccessProvider().GetValue(e.DataRow.RowData, e.DataColumn.GridColumn.MappingName);
       MessageBox.Show("Cell Value \t:    " + cellValue + "\n" + "Row Index \t:    " + rowIndex + "\n" + "Column Index \t:    " + columnIndex, "Cell Value");           
}

Getting the cell value by using the row column index of the cell

A particular cell value can be retrieved from records in the SfDataGrid.View by using the row column index of the cell. get the second level DetailsViewDataGrid cell value by using the first level grid instance.

btnGetCellValue.Click += BtnGetCellValue_Click;

private void BtnGetCellValue_Click(object sender, EventArgs e)
{      
       SfDataGrid sfDataGrid = this.sfDataGrid1.GetDetailsViewGrid(2);
       SfDataGrid secondlevel = sfDataGrid.GetDetailsViewGrid(2);
       txtGetCellValue.Text = GetCellValue(secondlevel, 1, 1);
}

private static string GetCellValue(Syncfusion.WinForms.DataGrid.SfDataGrid dGrid, int rowIndex, int columnIndex)
{
            string cellValue;
            if (columnIndex < 0)
                return string.Empty;
            var mappingName = dGrid.Columns[columnIndex].MappingName;
            var recordIndex = dGrid.TableControl.ResolveToRecordIndex(rowIndex);
            if (recordIndex < 0)
                return string.Empty;
            if (dGrid.View.TopLevelGroup != null)
            {
                var record = dGrid.View.TopLevelGroup.DisplayElements[recordIndex];
                if (!record.IsRecords)
                    return string.Empty;
                var data = (record as RecordEntry).Data;
                cellValue = (data.GetType().GetProperty(mappingName).GetValue(data, null).ToString());
            }
            else
            {
                var record1 = dGrid.View.Records.GetItemAt(recordIndex);
                cellValue = (record1.GetType().GetProperty(mappingName).GetValue(record1, null).ToString()); 
            }

            return cellValue;
}

Requirements to run the demo

Visual Studio 2015 and above versions