Convertion of string to datetime

[agarwalsunitadhn]

hi..

Currently i am facing a problem. I had a form containing two text boxes and in these two textboxes user fill up the date.
and as per user's date i have to search in the data from the database in between these two dates. i passed these two values as value1 and value2 through querystring in other page where i have to show the search results

I am using ms-access as backend and visual studio 2005 and language used is c#.

i had used following code

  string selectstr = "select cl.cId,cl.cName,od.orderId,od.orderDate,od.specifiedAmount,od.paidAmount from ClientDetails cl,OrderDetails od where cl.cId=od.cId and od.orderDate between @orderDate1 and @orderDate2 order by od.orderId desc";

 try
        {
 OleDbCommand cmd=new OleDbCommand(selectstr,conn);
        conn.Open();
        DateTime tmpdate1 = DateTime.Parse(Request.QueryString["value1"]);
        DateTime tmpdate2 = DateTime.Parse(Request.QueryString["value2"]);
        cmd.Parameters.Add("@orderDate1",OleDbType.DBDate).Value = tmpdate1;
        cmd.Parameters.Add("@orderDate2", OleDbType.DBDate).Value = tmpdate2;
       
            OleDbDataAdapter ada = new OleDbDataAdapter(cmd);
            DataSet ds = new DataSet();
            ada.Fill(ds);
            ddlSearch.DataSource = ds;
            ddlSearch.DataBind();
 }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }
        conn.Close();

where ddlSearch is a datagrid

i got the following error:
String was not recognized as a valid DateTime.

Please give me suggestion that how can i debug this error.
thanks in advance for your suggestions

[mentor]

Request.QuerySt ring["value1"] may cause problem. make sure the querystring value1 is in correct datatime format.

Also you should pay attention to urlEcond to get some proper character.

Suppose to set value1 ="2008-02-13", it should be ok.

[agarwalsunitadhn]

Request.QuerySt ring["value1"] may cause problem. make sure the querystring value1 is in correct datatime format.

Also you should pay attention to urlEcond to get some proper character.

Suppose to set value1 ="2008-02-13", it should be ok.

No my value is in the format of dd/mm/yyyy

[mentor]

No my value is in the format of dd/mm/yyyy

Are you sure

value1 = Request.QueryString["value1"]

is in the format of dd/mm/yyyy ?

[agarwalsunitadhn]

i solved the above problem but in the output i got the following data

2/13/2008 12:00:00 AM

but i want the date in the format of dd/mm/yyyy and i dnt want to display time.
can anyone solve my problem