SSRS 2008R2表达式以限制文本

Question

I have a tabular report that pulls in a field that shows free text. By adding:

=Left(fields!data.value,250) I can limit the number of characters to 250. However what I would really like to do is end the text after the last full stop (period) closest to 250 characters.

Eg, at the moment the report may display: 'Sales reached 25,000 for September. We are planning' and end abruptly at 'planning' as 'planning'is where 250 characters end.

Ideally I would like the text to end at the end of the sentence before, eg to stop after 'September'.

Do you know if this is possible - any suggestions or pointers would be hugely appreciated.

With many thanks.

Answer 1

You can use InStrRev to get the last period in the string, and use this as a parameter for the Left expression.

There are also a few more checks to consider, such as:

• When there are no periods in the string
• When there are no periods in the first 250 characters
• When there are periods after the 250 character cut off as well as periods in the first 250 characters.

This should work and catch most of the exceptions I can think of:

=IIf(InStrRev(Left(Fields!data.Value, 250), ".") > 0
        And InStrRev(Left(Fields!data.Value, 250), ".") <= 250
    , Left(Fields!data.Value, InStrRev(Left(Fields!data.Value, 250), "."))
    , Left(Fields!data.Value, 250))