Intersoft Community - WebGrid Enterprise - Cached Data Source?

Cached Data Source?

Glayaar — Tue, 06 Apr 2010 22:58:05 GMT

Attached is a simple sample that demonstrate the datasource is cached and show the rows count of the data source.

You will also need to have the global.asax file in your project in order to ensure caching works.

Cached Data Source?

Gmontes — Tue, 06 Apr 2010 09:59:51 GMT

Hi,

Do you have a sample on this? I actually tried GetCachedDataSource() before. Even when I modify my IntiializeDataSource event to this I doesn't work.

protected void Initas(object sender, DataSourceEventArgs e)

        {
            var cachedDS = WebGrid1.GetCachedDataSource();
            var cached = WebGrid1.IsDataCached();
            if (!cached)
                e.DataSource = CommonService.GetCountries();
            else
                e.DataSource = cachedDS;
        }

IsDataCached() keeps returning false. I have on my AllowAutoDataCaching="true" grid tag.

Thanks

Cached Data Source?

Glayaar — Tue, 06 Apr 2010 00:33:18 GMT

My test show in order to enable data caching in the WebGrid you will need to set the AllowAutoDataCaching to true. You will not need to use the AddDataSourceToCache function.

In order to retrieve the cached data please use GetCachedDataSource function.

Cached Data Source?

Gmontes — Mon, 05 Apr 2010 18:02:49 GMT

Hi,

Could someone clarify how the AllowAutoDataCaching works? I have that enabled on my grid and I have the following event definition for the InitializeDataSource handler:

protected void Initas(object sender, DataSourceEventArgs e)
        {
            var cached = WebGrid1.IsDataCached();
            if (!cached)
            {
                e.DataSource = CommonService.GetCountries();
                WebGrid1.AddDataSourceToCache(e.DataSource);
            }
        }

But everytime that event executes (via postback or flypostback) I get WebGrid1.IsDataCached() = false.

Thanks