DevExpress实现为TextEdit设置水印文字的方法

设置水印与消除水印

public static void SetWatermark(TextEdit textEdit, string watermark)  
{  
  textEdit.Properties.NullValuePromptShowForEmptyValue =true;  
  textEdit.Properties.NullValuePrompt = watermark;  
}  
public static void ClearWatermark(TextEdit textEdit)  
{  
  if(textEdit.Properties.NullValuePromptShowForEmptyValue)  
 textEdit.Properties.NullValuePrompt =string.Empty;  
}  

测试代码

privatevoid Form1_Load(objectsender, EventArgs e)  
{  
  SetWatermark(textEdit1, "请输入用户名称....");  
  SetWatermark(textEdit2, "请输入用户密码....");  
}  
   
privatevoid simpleButton1_Click(objectsender, EventArgs e)  
{  
  ClearWatermark(textEdit1);  
  ClearWatermark(textEdit2);  
}