Searching in RadGridView numbers with separators.

private void RadGridView1_SearchProgressChanged(object sender, SearchProgressChangedEventArgs e)
{
	if (e.SearchFinished == true && e.SearchCriteria != null && e.SearchCriteria != string.Empty)
	{
		List<int> indexes = new List<int>();
		foreach (GridSearchResultCellInfo c in e.Cells)
		{
			if (indexes.Contains(c.RowInfo.Index) == false)
				indexes.Add(c.RowInfo.Index);
		}

		foreach (var row in this.radGridView1.Rows)
		{
			if (indexes.Contains(row.Index) == false)
				row.IsVisible = false;
			else
				row.IsVisible = true;
		}
	}
	else if (e.SearchFinished == true)
	{
		foreach (var row in this.radGridView1.Rows)
			row.IsVisible = true;
	}
}

            this.radGridView1.EnableFiltering = true;
            this.radGridView1.ShowFilteringRow = false;
            this.radGridView1.EnableCustomFiltering = true;
            this.radGridView1.CustomFiltering += radGridView1_CustomFiltering;
            this.radTextBox1.TextChanged += radTextBox1_TextChanged;    

        private void radTextBox1_TextChanged(object sender, EventArgs e)
        {
            this.radGridView1.MasterTemplate.Refresh();
        }

        private void radGridView1_CustomFiltering(object sender, GridViewCustomFilteringEventArgs e)
        {
            if (string.IsNullOrEmpty(this.radTextBox1.Text))
            {
                this.radGridView1.BeginUpdate();
                e.Visible = true;
                for (int i = 0; i < this.radGridView1.ColumnCount; i++)
                {
                    e.Row.Cells[i].Style.Reset();                   
                }

                this.radGridView1.EndUpdate(false);
                return;
            }
            this.radGridView1.BeginUpdate();
            e.Visible = false;
            for (int i = 0; i < this.radGridView1.ColumnCount; i++)
            {
                string text = e.Row.Cells[i].Value.ToString();
                decimal filterValue;
                if ((decimal.TryParse(this.radTextBox1.Text, out filterValue) && text.Contains(filterValue.ToString())) 
                    || text.Contains(this.radTextBox1.Text))
                { 
                    e.Visible = true;
                    e.Row.Cells[i].Style.CustomizeFill = true;
                    e.Row.Cells[i].Style.DrawFill = true;
                    e.Row.Cells[i].Style.BackColor = Color.FromArgb(201, 252, 254);
                }
                                else
                {
                    e.Row.Cells[i].Style.Reset();                    
                }

                this.radGridView1.EndUpdate(false);
            }
        }

            t = new Timer();
            t.Interval = 2000;
            t.Tick += T_Tick;

        private void T_Tick(object sender, EventArgs e)
        {
            this.radGridView1.MasterTemplate.Refresh();
            t.Stop();
        }

        Timer t = new Timer();
        private void radTextBox1_TextChanged(object sender, EventArgs e)
        {
            t.Stop();
            t.Start();
        }

        public RadForm1()
        {
            InitializeComponent();
          
            CultureInfo culture = new System.Globalization.CultureInfo("en-US");
            NumberFormatInfo ni = new NumberFormatInfo();
            ni.NumberGroupSeparator = " ";
            culture.NumberFormat = ni;
            System.Threading.Thread.CurrentThread.CurrentCulture = culture;

            DataTable dt = new DataTable();
            dt.Columns.Add("Id", typeof(int));
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Price", typeof(decimal));

            dt.Rows.Add(1, "Test", 461892.65);
            dt.Rows.Add(1, "Test", 12);
            dt.Rows.Add(1, "Test", 5461.34);

            this.radGridView1.DataSource = dt;
            this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

            GridViewDecimalColumn decimalColumn = radGridView1.Columns["Price"] as GridViewDecimalColumn;
            decimalColumn.FormatInfo = culture;
            decimalColumn.FormatString = "{0:n2}";

            this.radGridView1.CellFormatting += RadGridView1_CellFormatting;
            this.radGridView1.AllowSearchRow = true;
            this.radGridView1.MasterTemplate.MasterViewInfo.TableSearchRow.HighlightResults = false;
            this.radGridView1.CurrentRowChanging += RadGridView1_CurrentRowChanging;

 
        } 

        private void RadGridView1_CurrentRowChanging(object sender, CurrentRowChangingEventArgs e)
        {
            if (e.NewRow is GridViewSearchRowInfo)
            {
                e.Cancel = true;
            }
        }

        private void RadGridView1_CellFormatting(object sender, CellFormattingEventArgs e)
        {
            if ( e.Row.SearchCache.Contains(e.Column))
            {
                e.CellElement.DrawFill = true;
                e.CellElement.GradientStyle = GradientStyles.Solid;
                e.CellElement.BackColor = Color.LightBlue;
            }
            else
            {
                e.CellElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local);
                e.CellElement.ResetValue(LightVisualElement.GradientStyleProperty, ValueResetFlags.Local);
                e.CellElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local);
            }
        }

        private void RadGridView1_CreateRowInfo(object sender, GridViewCreateRowInfoEventArgs e)
        {
            if (e.RowInfo is GridViewSearchRowInfo)
            {
                 e.RowInfo = new CustomSearchRow(e.ViewInfo);
            }
        }

        public class CustomSearchRow : GridViewSearchRowInfo
        {
            public CustomSearchRow(GridViewInfo viewInfo) : base(viewInfo)
            {
               
            } 
            protected override void OnSearchProgressChanged(SearchProgressChangedEventArgs e)
            {
                base.OnSearchProgressChanged(e);
                if (e.SearchFinished)
                {
                    foreach (GridViewRowInfo row in this.ViewTemplate.Rows)
                    {
                        row.InvalidateRow();
                    }
                }
            } 

            protected override bool MatchesSearchCriteria(string searchCriteria, GridViewRowInfo row, GridViewColumn col)
            {  
                bool result= base.MatchesSearchCriteria(searchCriteria, row, col);
                string rawValue = row.Cells[col.Name].Value + "";
                if (rawValue.Contains(searchCriteria))
                { 
                    return true;
                }
                return result;
            } 
        }