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The FileImageRender renders a chart image to the local temporary files and returns the image Url.
[TypeConverter(typeof(ImageRenderConverter))]
public class FileImageRender : ImageRender
<TypeConverter(GetType(ImageRenderConverter))>
Public Class FileImageRender
Inherits ImageRender
Repeated requests for the same chart use the same file to reduce load on the server. New requests create new files as needed. Files are not cleaned up automatically.
FileImageRender is recommended when charts are complex (expensive to generate) or when you expect a large number of requests for a relatively small number of different charts.
Name | Description |
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FileImageRender() | Initializes a new instance of the FileImageRender class. |
FileImageRender(string) | Initializes a new instance of the FileImageRender class. |
Name | Description |
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ImageUrl | Gets or sets the path and filename of the image file to be generated. |
Name | Description |
---|---|
GetImageUrl(FpChart) | Gets the image Url. |
TransferImage(FpChart) | Renders chart image and returns the image Url. |