protected void BtnAddProperty_Click(object sender, EventArgs e)
{
if (LabelManage.AttributeExists(this.xmlfilepath, this.TxtAttributeName.Text) && LabelManage.AddAttribute(this.xmlfilepath, this.TxtAttributeName.Text, this.TxtDefaultValue.Text, this.TxtIntro.Text))
{
this.TxtAttributeName.Text = string.Empty;
this.TxtDefaultValue.Text = string.Empty;
this.TxtIntro.Text = string.Empty;
this.GdvPropertys.DataBind();
}
}