Page.Controls无法正常使用母版页

时间:2015-01-20 15:31:38

标签: c# asp.net class webforms controls

我有一个类,用于将所有页面控件的名称保存到数据库中。我们在首次创建页面来设置翻译控件时使用它。

该类被发送到页面控件集合,然后循环遍历每个页面,但由于将所有页面附加到母版页,页面控件集仅包括存在的四个内容区域,并且不会拾取其中的任何其他内容。

我尝试了几个尝试修复此问题,比如使用div或表但是它没有用,有人可以解释如何从继承自母版页的页面获取Pages.Controls吗?

我尝试过这个问题的答案:Loop through all controls on asp.net webpage

我从页面中获取的控件在实践中似乎不包含子控件,因此无法将它们添加到列表中:

List<Control> foundsofar = null;
                    foreach (Control control in page)
                    {


                        foreach (Control c in control.Controls)
                        {
                            if (c is Control)
                            {
                                foundsofar.Add(c);
                            }

                        }
                    }

致电课程:

ArrayList PageObjects = GetPageControlIDs.AddControls(Page.Controls, array, constPageID);

添加控件类:

 static public ArrayList AddControls(ControlCollection page, ArrayList controlList, int PageID)
        {
            if (ObjectSetupSwitch == 1)
            {

                {

                    foreach (Control control in page)
                    {
                        if (control is Button || control is TextBox || control is Label)
                        {// This is cleaner
                            string ControlText = "";
                            string DescText = "";
                            if (control is Button)
                            {
                                Button btnNew = (Button)control;
                                ControlText = btnNew.Text;
                                DescText = btnNew.Text + " Button";
                            }
                            else if (control is TextBox)
                            {
                                TextBox txtNew = (TextBox)control;
                                ControlText = txtNew.Text;
                                DescText = txtNew.Text + " Textbox";
                            }
                            else if (control is Label)
                            {
                                Label lblNew = (Label)control;
                                ControlText = lblNew.Text;
                                DescText = lblNew.Text + " Label";
                            }
                            controlList.Add(control);

                            if (control.ID != null && control.ID != " ")
                            {
                                using (SqlConnection conn = new SqlConnection(GetConnection.GetConnectionString()))
                                {
                                    DataSet ds = new DataSet();
                                    SqlCommand sqlComm = new SqlCommand("PL_Objects_Insert", conn);
                                    sqlComm.Parameters.AddWithValue("@ControlID", control.ID.ToString());
                                    sqlComm.Parameters.AddWithValue("@PageID", PageID);
                                    sqlComm.Parameters.AddWithValue("@Text", ControlText);
                                    sqlComm.Parameters.AddWithValue("@DescText", DescText);


                                    sqlComm.CommandType = CommandType.StoredProcedure;

                                    SqlDataAdapter da = new SqlDataAdapter();
                                    da.SelectCommand = sqlComm;

                                    da.Fill(ds);
                                }
                            }
                        }



                        if (control.HasControls())
                            AddControls(control.Controls, controlList, PageID);
                    }


                    //Do it again for the tooltips
                    foreach (Control control in page)
                    {
                        if (control is Button || control is TextBox || control is ImageButton)
                        {// This is cleaner
                            string ControlText = "";
                            string DescText = "";
                            if (control is Button)
                            {
                                Button btnNew = (Button)control;
                                ControlText = btnNew.ToolTip;
                                DescText = btnNew.ToolTip + " Button Tooltip";
                            }
                            else if (control is ImageButton)
                            {
                                ImageButton btnNew = (ImageButton)control;
                                ControlText = btnNew.ToolTip;
                                DescText = btnNew.ToolTip + " ImageButton Tooltip";
                            }
                            else if (control is TextBox)
                            {
                                TextBox txtNew = (TextBox)control;
                                ControlText = txtNew.ToolTip;
                                DescText = txtNew.ToolTip + " Textbox Tooltip";
                            }
                            controlList.Add(control);

                            if (control.ID != null && control.ID != " ")
                            {
                                using (SqlConnection conn = new SqlConnection(GetConnection.GetConnectionString()))
                                {
                                    DataSet ds = new DataSet();
                                    SqlCommand sqlComm = new SqlCommand("PL_Objects_Insert", conn);
                                    sqlComm.Parameters.AddWithValue("@ControlID", control.ID.ToString() + ".Tooltip");
                                    sqlComm.Parameters.AddWithValue("@PageID", PageID);
                                    sqlComm.Parameters.AddWithValue("@Text", ControlText);
                                    sqlComm.Parameters.AddWithValue("@DescText", DescText);


                                    sqlComm.CommandType = CommandType.StoredProcedure;

                                    SqlDataAdapter da = new SqlDataAdapter();
                                    da.SelectCommand = sqlComm;

                                    da.Fill(ds);
                                }
                            }
                        }



                        if (control.HasControls())
                            AddControls(control.Controls, controlList, PageID);
                    }

                    //Do it again for the RE validators
                    foreach (Control control in page)
                    {
                        if (control is TextBox)
                        {// This is cleaner
                            string ControlText = "";
                            string DescText = "";
                            if (control is TextBox)
                            {
                                TextBox txtNew = (TextBox)control;
                                ControlText = txtNew.ToolTip;
                                DescText = txtNew.ToolTip + " Textbox Tooltip";
                            }
                            controlList.Add(control);

                            if (control.ID != null && control.ID != " ")
                            {
                                using (SqlConnection conn = new SqlConnection(GetConnection.GetConnectionString()))
                                {
                                    DataSet ds = new DataSet();
                                    SqlCommand sqlComm = new SqlCommand("PL_Objects_Validator_Insert", conn);
                                    sqlComm.Parameters.AddWithValue("@ControlID", "REV" + control.ID.ToString());
                                    sqlComm.Parameters.AddWithValue("@ControlToValidate", control.ID.ToString());
                                    sqlComm.Parameters.AddWithValue("@PageID", PageID);
                                    sqlComm.Parameters.AddWithValue("@DescText", "RE Validator");


                                    sqlComm.CommandType = CommandType.StoredProcedure;

                                    SqlDataAdapter da = new SqlDataAdapter();
                                    da.SelectCommand = sqlComm;

                                    da.Fill(ds);
                                }
                            }
                        }

                        if (control.HasControls())
                            AddControls(control.Controls, controlList, PageID);
                    }

                    return controlList;
                }

            }
            else
            {
                return controlList;
            }
        }
    } 

2 个答案:

答案 0 :(得分:0)

我最终找到了解决方案,但无法找到获得所有控件的简单方法。我不得不在其他控件中寻找它们并最终在这里找到它们:

ArrayList PageObjects = GetPageControlIDs.AddControls(this.Controls[0].Controls[0].Controls[3].Controls[13].Controls[1].Controls[3].Controls, array, constPageID);

答案 1 :(得分:-2)

要从页面本身查找母版页控件,请使用以下代码。

此代码段位于代码页。

    protected void Page_Load(object sender, EventArgs e)
    {
        GetControl(this.Master.Controls);
    }

    private void GetControl(ControlCollection cc)
    {
        foreach (Control v in cc)
        {
            if (v.HasControls())
            {
                GetControl(v.Controls);
            }
            else
            {
                if (v is TextBox)
                {
                    string s = (v as TextBox).ID;
                }
            }
        }
    }

由于System.Web.UI.MasterPage继承自UserControl,因此它具有UserControl提供的所有属性和方法。

要将其作为可重复使用的功能,有很多方法。

希望这会有所帮助!!! 希望这次能理解你的问题:)