如何加载所有控件并获取属性 [英] How load all controls and get attributes

问题描述

我需要获取所有控件的属性（ASP控件和HTml控件）我的代码是错误的。

I need get Attributes of all controls (ASP Controls and HTml controls) my code is wrong.

Sub checkControls(controls As ControlCollection)
      
        For Each conrol As Control In controls
            Dim ctr As WebControl = DirectCast(conrol, WebControl)
            If Not IsNothing(ctr.Attributes("data-action")) Then
                    Dim dataAction As String = ctr.Attributes("data-ction").Trim.ToLower
                    If dataAction <> "btn-select" Then
                        conrol.Visible = False
                    End If
                End If

            If conrol.HasControls Then
                checkControls(conrol.Controls)
            End If
        Next
    End Sub

推荐答案

因为System.Web.UI.AttributeCollection没有GetEnumerator的公共定义所以你唯一的方法就是使用Keys prop本类的erty以获取所有属性的键

As System.Web.UI.AttributeCollection does not have a public definition for GetEnumerator so the only way that you have is just using Keys property of this class in order to get all attributes' keys

public void CheckControls(ControlCollection controls)
   {
       foreach (Control control in controls)
       {
           WebControl ctr = control as WebControl;
           if (ctr != null)
           {
               foreach (string key in ctr.Attributes.Keys)
               {
                   //Do whatever you want
                   if (key == "sth")
                   {
                       string dataAction = ctr.Attributes[key].Trim().ToLower();
                       control.Visible = false;
                   }
               }
               if (control.HasControls() == true)
                   CheckControls(control.Controls);
           }
       }
   }

这篇关于如何加载所有控件并获取属性的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！