As per client requirement he/she want to selected date dispaly on report(Crystal Report).
Solution :
Step1 : I have create one formula field "mindate" and "maxdate" in crystal report.
Step2 : Create the instance of the reports class and set the texbox value in crystalreportviwer source.
Example :
I have used as per my code in aspx.cs in code page.
CrystalReportSource1.ReportDocument.DataDefinition.FormulaFields["mindate"].Text = "'" + Search_FromDate.Value.Trim() + "'";
CrystalReportSource1.ReportDocument.DataDefinition.FormulaFields["maxdate"].Text = "'" + Search_ToDate.Value.Trim()+ "'";
CrystalReportViewer1.ReportSource = CrystalReportSource1;
Note ["mindate"] ,["maxdate"] is the formula field name. which provided into crystal reports.
Result: See Below Image
