Setting selected item in a dropdown based on data value

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I am setting up a page to display results from a league based competition, and the system stores results for numerous seasons.

I have a table (tblSeason) that stores SeasonID, SeasonName and a bit field called Current - only one record has the bit set - it is the default season for the results - this allows me to have historic data, the current season, and future seasons. I want to populate a drop down list, with the current season as the default selection.

Populating the dropdown is easy, but I can't work out how to pre-select the current season.

Data in the season table is like this

SeasonID, Season, Current
1,"2010/11",0
2,"2011/12",0
3,"2012/13",1
4,"2013/14",0

The SQL string I use is:
SELECT [SeasonID], [Season], [Current] FROM [tblSeason] ORDER BY [Season]

The markup for the dropdown list is:

<asp:DropDownList ID="ddlSeason" runat="server" DataSourceID="sqlSeason"
DataTextField="Season" DataValueField="SeasonID"
AutoPostBack="True" onselectedindexchanged="ddlLeague_SelectedIndexChanged">

As the value in the data that I am looking for is not in the text or value propert of the dropdown, I can't use the FindByValue or FindByText methods. How can I do this?

Posted 28-Sep-12 0:44am

Chris Quinn

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2 solutions

Solution 1

Try following code:

C#

ddlSeason.SelectedIndex = ddlSeason.Items.IndexOf(ddlSeason.Items.FindByValue("4"));

Hope this will help you.

~Amol

Posted 28-Sep-12 7:42am

Amol_27101982, India

Updated 30-Sep-12 21:50pm

v2

Comments

Kenneth Haugland 1-Oct-12 3:51am

From OP:
Sorry - that is not what I asked four - that find the item with key value 4 - I am trying to find the item where the value of the "Current" column is true.

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Chris Quinn · Accepted Answer · 2012-09-30T22:35:00

I created a procedure to retrieve the seaon that has the Current marker set, then used this value with the FindByText method of the dropdown:

C#

string strCurrent = getCurrentSeason();
          ddlSeason.SelectedIndex = ddlSeason.Items.IndexOf(ddlSeason.Items.FindByText(strCurrent));

C#

protected string getCurrentSeason()
       {

           SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString);
           conn.Open();
           string queryString = "SELECT [Season] FROM tblSeason WHERE [Current] = 1";
           SqlCommand command = new SqlCommand(queryString, conn);
           string strReturn = "";

           SqlDataReader reader = null;
           reader = command.ExecuteReader();

           if (reader.Read())
           {
              strReturn = reader.GetString(0);
           }
           reader.Close();
           reader.Dispose();
           conn.Close();
           conn.Dispose();
           return strReturn;

       }