我用jquery解决了它:

      $("select.myselect").bind("focus", function(){
        if($(this).hasClass('readonly'))
        {
          $(this).blur();   
          return;
        }
      });

当您计划将选择设置为只读时，请将选择设置为禁用，然后在提交表单之前删除禁用属性。

// global variable to store original event/handler for save button
var form_save_button_func = null;

// function to get jQuery object for save button
function get_form_button_by_id(button_id) {
    return jQuery("input[type=button]#"+button_id);
}

// alter value of disabled element
function set_disabled_elem_value(elem_id, value)  {
    jQuery("#"+elem_id).removeAttr("disabled");
    jQuery("#"+elem_id).val(value);
    jQuery("#"+elem_id).attr('disabled','disabled');
}

function set_form_bottom_button_save_custom_code_generic(msg) {
    // save original event/handler that was either declared
    // through javascript or html onclick attribute
    // in a global variable
    form_save_button_func = get_form_button_by_id('BtnSave').prop('onclick'); // jQuery 1.6
    //form_save_button_func = get_form_button_by_id('BtnSave').prop('onclick'); // jQuery 1.7

    // unbind original event/handler (can use any of following statements below)
    get_form_button_by_value('BtnSave').unbind('click');
    get_form_button_by_value('BtnSave').removeAttr('onclick');

    // alternate save code which also calls original event/handler stored in global variable
    get_form_button_by_value('BtnSave').click(function(event){
        event.preventDefault();
        var confirm_result = confirm(msg);
        if (confirm_result) {
            if (jQuery("form.anyForm").find('input[type=text], textarea, select').filter(".disabled-form-elem").length > 0) {
                jQuery("form.anyForm").find('input[type=text], textarea, select').filter(".disabled-form-elem").removeAttr("disabled");
            }

            // disallow further editing of fields once save operation is underway
            // by making them readonly
            // you can also disallow form editing by showing a large transparent
            // div over form such as loading animation with "Saving" message text
            jQuery("form.anyForm").find('input[type=text], textarea, select').attr('ReadOnly','True');

            // now execute original event/handler
            form_save_button_func();
        }
    });
}

$(document).ready(function() {
    // if you want to define save button code in javascript then define it now

    // code below for record update
    set_form_bottom_button_save_custom_code_generic("Do you really want to update this record?");
    // code below for new record
    //set_form_bottom_button_save_custom_code_generic("Do you really want to create this new record?");

    // start disabling elements on form load by also adding a class to identify disabled elements
    jQuery("input[type=text]#phone").addClass('disabled-form-elem').attr('disabled','disabled');
    jQuery("input[type=text]#fax").addClass('disabled-form-elem').attr('disabled','disabled');
    jQuery("select#country").addClass('disabled-form-elem').attr('disabled','disabled');
    jQuery("textarea#address").addClass('disabled-form-elem').attr('disabled','disabled');

    set_disabled_elem_value('phone', '123121231');
    set_disabled_elem_value('fax', '123123123');
    set_disabled_elem_value('country', 'Pakistan');
    set_disabled_elem_value('address', 'address');

}); // end of $(document).ready function

我知道这不会帮助每个人(如果你只是客户端)，但会帮助一些全栈和控制后端以及前端的人。

如果用户没有编辑字段的特权，我只返回下拉列表的当前选择。

以下是我的后端控制器:

        #region Prepare Action Priviledges
        editAuditVM.ExtAuditEditRoleMatrixVM = new ExtAuditEditRoleMatrixVM
        {
            CanEditAcn = _extAuditEditRoleMatrixHelper.CanEditAcn(user, audit),
            CanEditSensitiveDesignation = _extAuditEditRoleMatrixHelper.CanEditSensitiveDesignation(user, audit),
            CanEditTitle = _extAuditEditRoleMatrixHelper.CanEditTitle(),
            CanEditAuditScope = _extAuditEditRoleMatrixHelper.CanEditAuditScope(user, audit)
        };
        #endregion


        #region Prepare SelectLists for Drop Downs
        #region AuditScope List
        IQueryable<SelectListItem> auditScopes = _auditTypesRepo.AuditTypes
            .Where(at => at.AuditTypeClassCode.ToLower() == "e")
            .Select(at => new SelectListItem
            { Text = at.AuditTypeText, Value = at.AuditTypeID.ToString() });
        // Cannot make a select readonly on client side.
        //  So only return currently selected option.
        if (!editAuditVM.ExtAuditEditRoleMatrixVM.CanEditAuditScope)
        {
            auditScopes = auditScopes
                .Where(ascopeId => ascopeId.Value == editAuditVM.ExternalAudit.AuditTypeID.ToString());
        }
        #endregion
        #endregion

<select id="case_reason" name="case_reason" disabled="disabled">

Disabled =" Disabled " ->将从数据库中获取你的值，但在表单中显示它。 Readonly =" Readonly " ->你可以在选择框中更改你的值，但你的值不能保存在你的数据库中。

非常简单。首先将值存储在变量中。然后将事件集的值更改为存储的变量，该变量包含的初始值

我有一个名字是映射的。那么我的代码将如下所示;

$("document").ready(function(){ 
    var mapping=$("select[name=mapping]").val();
    $("select[name=mapping]").change(function(){
        $("select[name=mapping]").val(mapping);
    });
});

我用jquery解决了它:

      $("select.myselect").bind("focus", function(){
        if($(this).hasClass('readonly'))
        {
          $(this).blur();   
          return;
        }
      });