CacheToDisk Property

Sets or returns a value indicating whether to optimize the amount of memory used by the document by caching the report to disk instead of holding it in memory.

[Visual Basic]
Public Property CacheToDisk As Boolean

[C#]
public bool CacheToDisk {get; set;}

Return Type

Boolean. The default value is False.

Remarks

Temporary files are written when this property is set to True. If there is an unhandled exception during report execution, these temporary files may remain on the system. The location of these files is:

WinForms: C:\Documents and Settings\<user name>\Local Settings\Application Data\IsolatedStorage

WebForms: C:\Documents and Settings\<machine name>\ASPNET\ Local Settings\Application Data\IsolatedStorage

CacheToDisk uses IsolatedStorage to store a page’s canvasItems to disk. To use CacheToDisk you must have permissions set for the IsolatedStorage folder.

NOTE: This property should only be set to True for reports that consume large amounts of memory, as it slows processing time. The property was created to be used with reports for which there is a danger of being unable to finish processing due to memory usage.

The PDF export will also detect this setting and export the cached report. Other exports will ignore this setting, so very large reports may cause them to run out of memory.

Example

[C#]

private void arv_Load(object sender, System.EventArgs e) 
{ 
    rptDocument rpt = new rptDocument(); 
    rpt.Document.CacheToDisk = true; 
    rpt.Run(); 
    arv.Document=rpt.Document; 
}

[Visual Basic]

Private Sub arv_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles arv.Load

    Dim rpt As New rptDocument

    rpt.Document.CacheToDisk = True

    rpt.Run()

    arv.Document = rpt.Document

End Sub

See Also

Language

CacheToDisk Property

Return Type

Remarks

Example

See Also