diff String.Isnullorempty& String.Notnullorempty [英] diff String.Isnullorempty & String.Notnullorempty

问题描述

String.Isnullorempty&之间的基本区别是什么? String.Notnullorempty

例如:-

What is the basic difference between String.Isnullorempty & String.Notnullorempty

eg:-

public Boolean Validdata()
    {
        Boolean Valid = true;
        if (string.IsNullOrEmpty(txtDate.Text))
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "Hello", "javascript:alert('Date Not Given')", true);
            Valid = false;
        }
        if (string.IsNullOrEmpty(txtStartTime.Text))
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "Hello", "javascript:alert('StartTime Not Given')", true);
            Valid = false;
        }
 return true;
    }

推荐答案

String.Isnullorempty =它不为null，也不为空
String.NotnulloremptyI =它不为null或为空

在那里回答了相同的问题.

http://stackoverflow.com/questions/734372/string-isnullorempty-vs-string-notnullorempty [ ^ ]

String.Isnullorempty = It''s not null and it''s not empty
String.NotnulloremptyI = It''s not null or it is empty

the same question is answered there.

http://stackoverflow.com/questions/734372/string-isnullorempty-vs-string-notnullorempty[^]

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