How to check the date for three days before

Question

Hi in my project Reporing Manager will intiate training date for employees. He should be able to intiate training three days before. EG: I need to take training for todays date i.e. 4th June 2015 so i need to intiate three days before i.e. 1st June 2015 How to do this in c#? Plaease help

Priya Bm · Answer

Sir. Before inserting i need to check the date like if (prfdate = 8-06-2015) [If i want training today and intiating the date it should display message] { it should display message like Please intiate training before three days. } if (prfdate = 11-06-2015) [ If i want training on 11th june and intiating the today it should accept] { Should accept } How to check this condition? Pls help Below is my code where i am inserting data from gridview into database. protected void GridView1_RowCommand(object sender GridViewCommandEventArgs e) { if (e.CommandName.Equals(InsertData)) { DropDownList ddltrainname = GridView1.FooterRow.FindControl(ddltrainname) as DropDownList; TextBox txtprfdate = GridView1.FooterRow.FindControl(txtprfdate) as TextBox; TextBox txtprftime = GridView1.FooterRow.FindControl(txtprftime) as TextBox; DropDownList ddlprffac = GridView1.FooterRow.FindControl(ddlprffac) as DropDownList; DropDownCheckBoxes ddlEmployes = GridView1.FooterRow.FindControl(ddlEmployes) as DropDownCheckBoxes; SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings[connectionstring].ConnectionString); { try { SqlCommand cmd = new SqlCommand(insert into RegisterfroTraining (NameofTrainingPrefdatePreftimePreffacEmployeeIDStatus) values (@NameofTraining@Prefdate@Preftime@Preffac@EmployeeID@Status)); cmd.CommandType = CommandType.Text; cmd.Connection = con; cmd.Parameters.AddWithValue(@NameofTraining ddltrainname.Text); cmd.Parameters.AddWithValue(@Prefdate txtprfdate.Text); cmd.Parameters.AddWithValue(@Preftime txtprftime.Text); cmd.Parameters.AddWithValue(@Preffac ddlprffac.Text); string EmployeeIDs = string.Empty; foreach (ListItem item in ddlEmployes.Items) { if (item.Selected) { EmployeeIDs += item.Text + ; } } cmd.Parameters.AddWithValue(@EmployeeID EmployeeIDs.Trim('')); cmd.Parameters.AddWithValue(@Status Open); if (con.State == ConnectionState.Closed) { con.Open(); } cmd.ExecuteNonQuery(); BindGrid(); Page.RegisterStartupScript(Alert  alert('Your training request has been submitted for approval to Training Manager successfully') ); } catch (Exception ex) { Exception ex2 = ex; string errormessage = string.Empty; while (ex2 != null) { errormessage += ex2.ToString(); ex2 = ex2.InnerException; } Page.RegisterStartupScript(Alert  alert('Training Request has not been Sent') ); } } } }

Pankaj Kumar Choudhary · Answer

Hello @Priya you can use this method DateTime ab = System.DateTime.Now.AddDays(-3);

Rajeesh Menoth · Answer

Hi var dt = new DateTime ( 2015  6  4 ); var fourDaysBefore = dt . AddDays (- 3 ); Ref : http://stackoverflow.com/questions/2680595/how-to-calculate-the-4-days-before-date-of-the-target-date