Swift string and cocoa bindings: placeholder string is not displayed -

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मेरे पास एक गतिशील var someString: String है? = शून्य मेरी कक्षा में एक UI पाठ क्षेत्र के लिए बाध्य गुण पाठ क्षेत्र को प्लेसहोल्डर स्ट्रिंग प्रदर्शित करने के लिए कॉन्फ़िगर किया गया है जब someString खाली (शून्य) है लेकिन जब मैं अनुप्रयोग चलाता हूं तो प्लेसहोल्डर स्ट्रिंग दिखाई नहीं देता, भले ही someString स्पष्ट रूप से शून्य पर सेट हो। मुझे याद हो सकता है कि स्विफ्ट के बजाय स्विफ्ट के बजाय उद्देश्य-सी कोड के साथ समर्थित एक ही विंडो को याद किया जा सकता है और स्ट्रिंग रिक्त होने पर टेक्स्ट फ़ील्ड प्लेसहोल्डर को दिखाया गया था, लेकिन मैं यह सुनिश्चित करने के लिए अभी नहीं देख सकता। वैसे भी, क्या यह स्विफ्ट में एक बग है या क्या मैं कुछ गलत कर रहा हूं?

मैंने अभी पाया है कि मान बाइंडिंग कॉन्फ़िगरेशन में "नल प्लेसहोल्डर" विकल्प है। ऐसा लगता है कि विशेषता निरीक्षक में "प्लेसहोल्डर" सेटिंग को ओवरराइड किया जा रहा है। तो सवाल बंद है।


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