Problems using cache | Infragistics Forums

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WebHierarchicalDataGrid

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Problems using cache

Fernando posted over 13 years ago

Hi,

I have a webhierarchicaldatagrid with paging linked to a webhierarchicaldatasource linked to an objectdatasource that returns a lot of records so i decided to enable the cache of the objectdatasource.

My problem is that i cant manage to refresh the cache and make the grid show the new data.

In my code i use a button to refresh the cache and when i click that button, the selecting method of the objectdatasource is called and the webhierarchicaldatagrid shows the first page of the data but when i click the "next page" link it shows no data and no prev or next page buttons.

This is the code i use to refresh the cache:

protected void btRefresh_Click(object sender, EventArgs e)

{

ObjectDataSource.EnableCaching = false;

WHDGMovs.DataBind();

ObjectDataSource.EnableCaching = true;

}

What am i doing wrong ?

37874

[Infragistics] Nikolay posted over 12 years ago in reply to [Infragistics] Nikolay

Hi fjVazquez,

I'm just checking if you need any further assistance with the matter.
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37874

[Infragistics] Nikolay posted over 12 years ago
Hi fjVazquez,

It has been some time since your post but in case that you still need assistance I will be happy to help.

I would suggest to clear the cached data using something like the following code:

Code Snippet

protected void Page_Load(object sender, EventArgs e)

{

    if (!IsPostBack)

    {

        Cache[ObjectDataSource1.CacheKeyDependency] = "CacheExample";

    }

}

protected void Button1_Click(object sender, EventArgs e)

{

    Cache.Remove(ObjectDataSource1.CacheKeyDependency);

    Cache[ObjectDataSource1.CacheKeyDependency] = "CacheExample";

    WebHierarchicalDataGrid1.DataBind();

}

If you have any other questions, please do not hesitate to ask.
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