以编程方式更改 Crystal Reports 对象的可见性

问题描述

我有一个 C# 2010 应用程序，其中包含使用 Crystal Reports for VS2010 创建的报表.

I have a C# 2010 application which contains reports created with Crystal Reports for VS2010.

对于其中一份报告，可以选择打印报告或通过电子邮件将其发送给某人[通过 SMTP 导出和发送].

For one of the reports, there is the option to print the report or e-mail it to someone [export and send via SMTP].

我希望在查看报告以及通过电子邮件发送报告时显示水印.我不希望它在打印时显示，因为它将打印在带水印的页面上.

I want the watermark to be shown when viewing the report and also when e-mailing it. I do not want it to be shown when it is printed since it will be printed on watermarked page.

我想知道如何以编程方式 [不是在运行时] 更改包含 CrystalReportViewer 的表单中的水印可见性，以便在打印时也不会打印水印.

I would like to know how I can change the watermark visibility in the form which contains the crystalReportViewer programmatically [not on runtime], so that when printing, it doesn't print the watermark too.

推荐答案

• 创建一个布尔参数({?Show Watermark})
• 将Not({?Show Watermark})添加到图片或包含图片的部分的条件公式中
• 以编程方式设置参数的值.
• Create a boolean parameter ({?Show Watermark})
• Add Not({?Show Watermark}) to the conditional formula of the image or the section that contains the image
• Set the value of the parameter programatically.

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