C#一次性清空TextBox或者将某一类控件置某一状态

#region 清除     protected void btnClear_Click(object sender, EventArgs e)    {        foreach (Control ctl in this.Controls)        {            this.txtClear(ctl);        }    }     #endregion     private void txtClear(Control ctls)    {        if(ctls.HasControls())        {            foreach (Control ctl in ctls.Controls)            {                txtClear(ctl);            }        }        else        {            if (ctls.GetType().Name == "TextBox")            {                TextBox tb = new TextBox();                tb = (TextBox)this.FindControl(ctls.ID);                tb.Text = "";            }            else if (ctls.GetType().Name == "DropDownList")            {                DropDownList ddl = new DropDownList();                ddl = (DropDownList)this.FindControl(ctls.ID);                ddl.SelectedIndex = 1;            }        }    }

转载于:https://www.cnblogs.com/hengbo/archive/2009/01/05/2232510.html

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