Hello. I am trying to use caching to populate a datalist. The select
method of the associated objectdatasource calls up
    GetRecipePageByRecipeCatID() to request the proper data (I am using
custom paging at SQL level
    so there is a paging idx as well). The code works fine when caching
is edited out.

    Problem. The cache object is only created the first time around. When
the dtl ia refreshed, th HttpContext.cache object always returns
    nothing. What am I doing wrong (there is no application restart)?
Thks for your input.

         Public Function GetRecipePageByRecipeCatID(ByVal RecipeCatID As
Nullable(Of Integer), _
           ByVal PageIndex As Nullable(Of Integer), ByVal NumRows As
Nullable(Of Integer), ByRef RecipeCount As Integer) _
           As RecipeDataSet.tblRecipesDataTable

           ' Set key to get/set our cache'd data
           Dim strCacheKey As String = "GetRecipePageByRecipeCatID" &
RecipeCatID.ToString() & PageIndex.ToString

           If HttpContext.Current.Cache(strCacheKey) IsNot Nothing
Then
               Return CType(HttpContext.Current.Cache(strCacheKey),
RecipeDataSet.tblRecipesDataTable)

           Else
               If Not RecipeCatID.HasValue Then RecipeCatID = 0
               If Not PageIndex.HasValue Then PageIndex = 0
               If Not NumRows.HasValue Then NumRows = 4 ' Show 4
entries
               If IsNothing(RecipeCount) Then RecipeCount = 0

               Dim myDataSet As RecipeDataSet.tblRecipesDataTable =
Adapter.GetRecipePageByRecipeCatID(RecipeCatID, PageIndex, NumRows,
RecipeCount)
               HttpContext.Current.Cache.Insert(strCacheKey,
myDataSet, Nothing, DateTime.Now.AddMinutes(30), TimeSpan.Zero)
               Return myDataSet
           End If
       End Function