help please in grid view selection change index

Question

 

I have a grid view on other page but i want to get text box value from prevoius page in the grid view selection change index event.

i mean entering start date and end date from previus page i get it in the grid view selectd chang index event how is possible?

 

 

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)

{

// int index = GridView1.SelectedIndex;

int id = (int)GridView1.SelectedDataKey.Values["Car_id"];

// Label1.Text=id.ToString();

DetailsView1.PageIndex = GridView1.SelectedIndex;

 

string connectionString = (string)ConfigurationSettings.AppSettings["dbconnectionstr"];

 

OleDbConnection conn = new OleDbConnection(connectionString);

conn.Open();

string commandstring = "Select * from Rates where Car_id=" + id;

OleDbCommand cmnon = new OleDbCommand(commandstring, conn);

OleDbDataReader rd = cmnon.ExecuteReader();

while (rd.Read())

{

Label2.Text = rd["Car_Name"].ToString();

}

/////////////////////////////////////////////////////////////from here i am getting problem it does not get previus page properties which are Datestart and Datend....................................................................................

 

int rent, tot = 0;

DateTime start = DateTime.Parse(PreviousPage.Datestart);

DateTime end = DateTime.Parse(PreviousPage.Dateend);

int totdays = (end - start).Days + 1;

if (totdays <= 1)

{

lbhire.Text = "Sorry start date can't be greater then end date for same month";

}

else

{

lbhire.Text = Convert.ToString(totdays);

 

 

if (totdays >= 2 && totdays <= 6)

{

rent = Convert.ToInt32(rd["2_6DaysLowSeason"].ToString());

 

 

}

else if (totdays >= 7 && totdays <= 13)

{

rent = Convert.ToInt32(rd["7_13DaysLowSeason"].ToString());

 

}

else

{

rent = Convert.ToInt32(rd["14+DaysLowSeason"].ToString());

 

}

tot = rent * totdays;

lbtot.Text = tot.ToString();

// Label8.Text=rd["VAT%"].ToString();

}