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Dataset not caching

Posted on 2006-06-20
2
Medium Priority
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Last Modified: 2010-04-16
Hi
can anyone help with these 2 problems.

1) Why will this not cache:

protected void Page_Load(object sender, EventArgs e)

{

DataSet CountryXMLFile = new DataSet();
        try
            {
            CountryXMLFile.ReadXml(Server.MapPath("countrylist.xml"));
            Cache.Insert("countrylist", CountryXMLFile, null, DateTime.Now.AddMinutes(10), TimeSpan.Zero);
            }
        catch
            {
            return;
            }
        ddlCountry.DataSource = CountryXMLFile;
        ddlCountry.DataTextField = "Country";
        ddlCountry.DataValueField = "CountryID";
        ddlCountry.DataBind();
}

2) Put dataset into its own function

public ddlCountries()
{
DataSet CountryXMLFile = new DataSet();
        try
            {
            CountryXMLFile.ReadXml(Server.MapPath("countrylist.xml"));
            Cache.Insert("countrylist", CountryXMLFile, null, DateTime.Now.AddMinutes(10), TimeSpan.Zero);
            }
        catch
            {
            return;
            }

}

protected void Page_Load(object sender, EventArgs e)

{
ddlCountry.DataSource = ddlCountries();
        ddlCountry.DataTextField = "Country";
        ddlCountry.DataValueField = "CountryID";
        ddlCountry.DataBind();
}

I've been trying for 2 days to solve these problem and I have decided I need help.
Regards
Caz
0
Comment
Question by:BeginningWebDesign
2 Comments
 
LVL 37

Accepted Solution

by:
gregoryyoung earned 2000 total points
ID: 16946138
Where are you "caching" ?

I see you adding it to the cache .. but you don't have valid code here .. and you never read from your cache?



try

public DataSet Countries() {
      if(!Cache.Contains("countrylist")) {
          CountryXMLFile.ReadXml(Server.MapPath("countrylist.xml"));
          Cache.Insert("countrylist", CountryXMLFile, null, DateTime.Now.AddMinutes(10), TimeSpan.Zero);
      }
      return Cache["countrylist"];
}
0
 

Author Comment

by:BeginningWebDesign
ID: 16946358
Thanks gregoryyoung
Caz
0

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