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);

}