How do I set the visibility of a text box in SSRS using an expression

Question

I have a subtotal field for a calculated column that I want to hide when my report has not ran yet because on days with no data it shows up as NaN on the report   I have tried two methods but neither are working and I am sure it is almost correct  I just don t know what is wrong with the expression   I tried hiding if my dataset had no rows    IIf  CountRows  ScannerStatisticsData   0  False True    I also tried making a calculation    iif  fields Scans Value   fields numberOfCases Value    0  False  True    I also tried checking isnothing on one of the columns in the calculation   iif IsNothing fields Scans Value   False  True    What am I doing wrong

User · Answer

Switch your false and true returns   I think if you put those as a function in the visibility area  then false will show it and true will not show it

User · Answer

This didn t work   IIf  CountRows  ScannerStatisticsData     0  False True    but this did and I can t really explain why   IIf  CountRows  ScannerStatisticsData    lt  1  False True    guess SSRS doesn t like equal comparisons as much as less than

User · Answer

the rdl file content     lt Visibility gt  lt Hidden gt  Parameters casetype Value 300 lt  Hidden gt  lt  Visibility gt    so the text box will hidden  if your expression is true

User · Answer

instead of this   IIf  CountRows  ScannerStatisticsData   0  False True    write only the expression when you want to hide  CountRows  ScannerStatisticsData   0   or change the order of true and false places as below   IIf  CountRows  ScannerStatisticsData   0  True False    because the Visibility expression set up the Hidden value  that you can find above the text area as    Set expression for  Hidden

User · Answer

Twood  Visibility expression is the expressions you write on how you want the  visibility  to behave  So  if you would want to hide or show the textbox  you want to write this     IIf  CountRows  ScannerStatisticsData   0  True False    This means  if the dataset is 0  you want to hide the textbox

User · Answer

IIf  CountRows  ScannerStatisticsData   0  False True    Should be replaced with    IIf  CountRows  ScannerStatisticsData   0  True False    because the Visibility expression set up the Hidden value

User · Answer

Visibility of the text box depends on the Hidden Value  As per the below example  if the internal condition satisfies then text box Hidden functionality will be True else if the condition fails then text box Hidden functionality will be False   IIf  CountRows  ScannerStatisticsData     0   True  False

User · Answer

I tried the example that you have provided and the only difference is that you have True and False values switched as  bdparrish had pointed out  Here is a working example of making an SSRS Texbox visible or hidden based on the number of rows present in a dataset  This example uses SSRS 2008 R2    Step-by-step process  SSRS 2008 R2   In this example  the report has a dataset named Items and has textbox to show row counts  It also has another textbox which will be visible only if the dataset Items has rows  Right-click on the textbox that should be visible hidden based on an expression and select Text Box Properties     Refer screenshot  1  On the Text Box Properties dialog  click on Visibility from the left section  Refer screenshot  2   Select Show or hide based on an epxression   Click on the expression button fx   Enter the expression  IIf CountRows  Items     0   True  False   Note that this expression is to hide the Textbox  Hidden    Click OK twice to close the dialogs  Screenshot  3 shows data in the SQL Server table dbo Items  which is the source for the report data set Items  The table contains 3 rows  Screenshot  4 shows the sample report execution against the data  Screenshot  5 shows data in the SQL Server table dbo Items  which is the source for the report data set Items  The table contains no data  Screenshot  6 shows the sample report execution against the data    Hope that helps   Screenshot  1     Screenshot  2     Screenshot  3     Screenshot  4     Screenshot  5     Screenshot  6

[reporting-services] How do I set the visibility of a text box in SSRS using an expression?

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