2 pengjianhuan88 pengjianhuan88 于 2013.09.26 09:10 提问

jsp页面怎么控制所有控件只读

///
/// 设置当前页面上的所有可输入和选择的控件为只读属性
///
///
public static void SetControlReadOnly(Page page)
{

        foreach (Control ctrl in page.Controls)
        {
            SetControlReadOnly(ctrl);

        }
    }




    //递归调用。设置控件只读。
    public static void SetControlReadOnly(Control ctr)
    {
        if (ctr is TextBox)
        {
            TextBox txtControl = (TextBox)ctr;
            txtControl.ReadOnly = true;
            txtControl.Enabled = false;

        }
        else if (ctr is RadioButton)
        {
            RadioButton btn = (RadioButton)ctr;
            btn.Enabled = false;

        }
        else if (ctr is RadioButtonList)
        {
            RadioButtonList btn = (RadioButtonList)ctr;
            btn.Enabled = false;
        }

        else if (ctr is CheckBox)
        {
            CheckBox cb = (CheckBox)ctr;
            cb.Enabled = false;
        }
        else if (ctr is DropDownList)
        {
            DropDownList list = (DropDownList)ctr;
            list.Enabled = false;
        }

        else if (ctr is HtmlTextArea)
        {
            HtmlTextArea cb = (HtmlTextArea)ctr;
            cb.Attributes.Add("readonly", "");
            cb.Disabled = true;
        }
        else if (ctr is HtmlSelect)
        {
            HtmlSelect rb = (HtmlSelect)ctr;
            rb.Disabled = true;
        }

        else if (ctr is HtmlInputCheckBox)
        {
            HtmlInputCheckBox rb = (HtmlInputCheckBox)ctr;
            rb.Disabled = true;
        }
        else if (ctr is HtmlInputRadioButton)
        {
            HtmlInputRadioButton rb = (HtmlInputRadioButton)ctr;
            rb.Disabled = true;
        }
        else if (ctr is HtmlInputText)
        {
            HtmlInputControl input = (HtmlInputControl)ctr;
            input.Attributes.Add("readonly", "");
            input.Disabled = true;
        }
        else
            foreach (Control ctr1 in ctr.Controls)
            {
                SetControlReadOnly(ctr1);
            }
    }

上面的代码是说可以实现,但是我不知道怎么用,比如说我现在有一个叫test.jsp的页面,怎么传一个page参数过去呢?

1个回答

en_joker
en_joker   2017.11.16 14:59

你可以在每个jsp页面都引入一个js文件,在js文件中写一个初始化函数对所有的标签进行禁用。

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