'宣言 Public ReadOnly Property EncodingException As System.Exception
public System.Exception EncodingException {get;}
'宣言 Public ReadOnly Property EncodingException As System.Exception
public System.Exception EncodingException {get;}
Most encodings have limitations that determine what type of text it can represent. For example, some are numeric-only and some require text of a specific length.
If the value of the Text property cannot be represented using the current CodeType, then no bar code will be generated and the control will remain blank.
In this case, the EncodingException property returns details about the exception that prevented the bar code from being generated.
this.C1BarCode1.Text = this.TextBox1.Text; Exception exc = this.C1BarCode1.EncodingException; this.Label1.Text = exc == null ? "" : exc.Message;