When you set CanShrink=True
for the TextBox it will shrink to the size of the inner text - check this screenshot
with the result that occurs when CanShrink is set to true using version Q1 2015 SP1 184.108.40.2064.
It is not clear why the empty space
occurs on the left side of the text in your example. You can test trimming the string data filed using Trim() built-in function
To provide you further suggestion, please share more details regarding your scenario, if this behavior is only reproducible in the Report Viewer specify which viewer you use, also attach a sample project with test data in a support ticket so we can check the settings.
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