如果某些editText字段已被填充，我如何调整按钮才能继续？ [英] how do i condition a button to proceed only if some editText fields have been filled?

问题描述

如果某个editText字段已被填充，我如何调整按钮才能继续？

解决方案

检查它们。或者让他们改变.Enabled属性。



我倾向于编写一种方法来检查一些事情并设置适当的启用。

 private void UpdateStuff（）
 {
 button3.Enabled = box1.Length> 0&& box2.Length> 0; 
 
 ... 
} 

然后从box1的ValueChanged方法调用它BOX2。

how do i condition a button to proceed only if some editText fields have been filled?

解决方案

Check them. Or have them alter the .Enabled property.

I tend to write a method that will check a number of things and set Enableds as appropriate.

private void UpdateStuff()
{
  button3.Enabled = box1.Length>0 && box2.Length>0 ;

  ...
}

Then this gets called from the ValueChanged methods of box1 and box2.

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