在ReportViewer上绑定数据 [英] Binding data on ReportViewer

问题描述

我正在使用带有ASP.NET和C#的ReportViewer开发报表.我正在使用.RDLC设计视图将数据从数据源绑定到Tablix对象.

I am developing a Report using ReportViewer with ASP.NET and C#. I'm binding data from a DataSource to a Tablix object using the .RDLC design view.

在这个Tablix里面，有一个字段必须填写来自de datasource的一个字段，或者另一个取决于表达式的字段.

Inside this Tablix, there's a field that must me filled with one field from de datasource OR another one depending of an expression.

我尝试使用的表达式是:

The expression in the field I am trying to use to achieve that is:

=IIf(IsNothing(Fields!PREMIO_CALCULADO_1.Value), Fields!PREMIO_CALCULADO_1.Value,Fields!RECUPERACAO_CALCULADA_INI_1.Value)

如果字段"PREMIO_CALCULADO_1"为空，则将其填充为"RECUPERACAO_CALCULADA_INI".我没有编译错误，但是当我执行报告时该值应该在其中，并且有一个#error标记.

If the Field "PREMIO_CALCULADO_1" is null, then fill it with "RECUPERACAO_CALCULADA_INI". I'm not having compilation errors but when I execute the report where this value should be there is an #error tag.

我在表达上做错什么了吗?

Am I doing something wrong with that expression?

非常感谢您.

推荐答案

看起来您的返回值位置错误.

It looks like you have the return values in the wrong position.

只需在IsNothing之前添加一个NOT.

Just add a NOT before IsNothing.

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