Please use the TextFormat property of the TextBox component:
Select the "Boolean" category in the "Formats" list
and in the Display property please type your text to output values for "False", "True", and "Null" values.

<t>You can transfer variables from application to a report using the following code:<br/> <br/> 1.Create variable in Report Dictionary<br/> <br/> 2.Initialize variable before report running:<br/> <br/> <br/> StiReport report = new StiReport();<br/> <br/> report.Load("Variables.mrt");<br/> report.Dic...

<t>There are 2 ways to disable buttons in Preview:<br/> 1. With use of the StiPreviewControl:<br/> <br/> PreviewControl.ShowOpen = false;<br/> PreviewControl.ShowSave = false;<br/> <br/> 2. Without StiPreviewControl:<br/> <br/> //Do this operation once when running the program<br/> StiConfig.Load();...