Use a method such as: public static class My Extensions public static string Safe To String(this object obj) return (obj? ). To String then you can use it like: object obj = null; string str = obj. Safe To String or as an example from your code: prev Val = data Grid View Platypi. Rows[args. Row Index - 1]. Cells[args. Column Index]. Value. Safe To String This creates an extension method, so if you add a using for the namespace that the extensions class is in all objects will appear to have a Safe To String method in intellisense. The method isn't actually an instance method, it just appears as one, so instead of generating a null reference exception if the object is null it simply passes null to the method, which treats all null values as empty strings.
I think your If statement should look like this. It sets the lbl KET to visible if the cell is Null or contains only spaces or an empty string. If dgvdatakaryawan. Item(e. Column Index, e. Row Index). Value Is Nothing orelse _ dgvdatakaryawan. Item(e. Column Index, e. Row Index). Value. To String. Trim = Then lbl KET. Visible = True Else lbl KET. Visible = False End If Add your solution here Treat my content as plain text, not as HTML Preview 0 Existing Members Sign in to your account.or Join us Download, Vote, Comment, Publish. Your Email Password Your Email This email is in use. Do you need your password? Optional Password I have read and agree to the Terms of Service and Privacy Policy Please subscribe me to the Code Project newsletters When answering a question please: Read the question carefully. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome. Let's work to help developers, not make them feel stupid. This content, along with any associated source code and files, is licensed under The Code Project Open License ( CPOL).
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