c# - how to display date and time separately in grid view -

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i have 1 column in sql table. name intime. data type nvarchar. stores both date , time. want date , time separately.

i have tried query:

select  attendancedate,         substring(convert(varchar,intime,113),1,11)[intime],         substring(convert(varchar,intime,113),13,19)[intime],         indeviceid,         outtime,         outtime,         outdeviceid,          dbo.minutestoduration(duration) duration,         status  dbo.attendancelogs   employeeid=2938  order attendancedate desc

but if pass same sql command in grid view not working. 

public void bind()     {         sqlcommand cmd = new sqlcommand("select attendancedate,substring(convert(varchar,intime,113),1,11) [intime],substring(convert(varchar,intime,113),13,19) [intime],indeviceid,outtime,outtime,outdeviceid, dbo.minutestoduration(duration) duration,status dbo.attendancelogs  employeeid='" + empidtxt.text + "' , year(attendancedate)=" + ddlyear.selecteditem + "  , month(attendancedate)=" + ddlmnt.selectedvalue + " order attendancedate desc", con);         sqldataadapter da = new sqldataadapter();         cmd.connection = con;         da.selectcommand = cmd;         datatable dt = new datatable();         da.fill(dt);         gridview1.datasource = dt;         gridview1.databind();          gridview1.controlstyle.font.size = 10;      }

where possibly problem?

replace code 

   public void bind()         {             sqlcommand cmd = new sqlcommand(@"select attendancedate,substring(convert(varchar,intime,113),1,11) [intimed],substring(convert(varchar,intime,113),13,19) [intimet],             indeviceid,outtime,outtime,outdeviceid, dbo.minutestoduration(duration) duration,status dbo.attendancelogs                  employeeid='" + empidtxt.text + "' , year(attendancedate)=" + ddlyear.selecteditem.value +                                      "  , month(attendancedate)=" + ddlmnt.selectedvalue + " order attendancedate desc", con);             sqldataadapter da = new sqldataadapter(cmd,con);             datatable dt = new datatable();             da.fill(dt);             gridview1.datasource = dt;             gridview1.databind();              gridview1.controlstyle.font.size = 10;          }

this line not filter year return object of drop down list 

year(attendancedate)=" + ddlyear.selecteditem + "

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