Improve image quality When Visual Studio. NET is used to view the Crystal Report on the Web

Knowledge in this article:
Visual Studio. NET built-in Crystal Reports
Applicable:
Only for the reported version
Image Quality
Web Viewer
Outline
Web programs use Visual Studio. NET built-in Crystal Reports as report development tools.
When you view a Report on the Web, the resolution of the default situation and chart is reduced to 96 dpi (to improve performance and download speed ).
How can we improve the image quality in reports?
Solution
By changing the magnification of images in the system registry, you can improve the image quality in reports.
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Warning:
The following decisions include editing the registry. Incorrect use of the Registry Editor may cause serious problems. You may need to reinstall the Windows operating system. Using the registry will be at your own risk.
We strongly recommend that you back up the Registry File (System. dat and User. dat on Win9x) before editing the registry ).
Learn how to edit the Registry
Read the online help topic "change items and values" in the Registry Editor (Regedit.exe ".
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By default, the magnification setting is stored in the registry root key HKEY_CURRENT_USER, and is only valid for the current login user. However, if you are authenticated by IIS on the Web, you do not have access to the HKEY_CURRENT_USER Root Key.
Therefore, the magnification setting must be copied to the HKEY_LOCAL_MACHINE Root Key to take effect.
Copy the magnification settings to the HKEY_LOCAL_MACHINE root key:
1. Click Start> Run, enter Regedit, and click OK ".
2. Go to the Registry Editor and find the following sub-key:
HKEY_CURRENT_USERSOFTWARESeagate SoftwareCrystal ReportsExport
3. Right-click the "Export" subkey, select "new", and select "double byte value ".
4. Name the item BitMapMagnifNumerator, double-click the item, assign a decimal value between 1 and 4 to the item (4 indicates the highest quality Bitmap), and click OK ".
5. Repeat Steps 3 and 4 to create the BitMapMagnifDenominator and assign it to "1 ".
6. Select the registry subkey Export, click the "Registry" menu, and select "Export registry file ..."