pur*_*ppc 17 .net c# methods method-group assign
无法分配"AppendText",因为它是"方法组".
public partial class Form1 : Form
{
String text = "";
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
String inches = textBox1.Text;
text = ConvertToFeet(inches) + ConvertToYards(inches);
textBox2.AppendText = text;
}
private String ConvertToFeet(String inches)
{
int feet = Convert.ToInt32(inches) / 12;
int leftoverInches = Convert.ToInt32(inches) % 12;
return (feet + " feet and " + leftoverInches + " inches." + " \n");
}
private String ConvertToYards(String inches)
{
int yards = Convert.ToInt32(inches) / 36;
int feet = (Convert.ToInt32(inches) - yards * 36) / 12;
int leftoverInches = Convert.ToInt32(inches) % 12;
return (yards + " yards and " + feet + " feet, and " + leftoverInches + " inches.");
}
}
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该错误位于button1_Click方法内的"textBox2.AppendText = text"行.
Til*_*lak 28
使用以下
textBox2.AppendText(text);
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代替
textBox2.AppendText = text;
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AppendText不是财产而是方法.因此需要使用参数调用它,不能直接分配.
属性是特殊方法,由于编译器中的特殊处理而支持赋值.
改为执行此操作(AppendText是方法,而不是属性;这正是错误消息告诉您的内容):
textBox2.AppendText(text);
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