Question

如何从主页面获取输入控件的值？

我的母版页：

.......
 <div class="searchform">
          <form id="formsearch" name="formsearch" method="post" action="#">
            <span>
            <input name="editbox_search" class="editbox_search" id="editbox_search" maxlength="80" value="Code Client:" type="text" />
            </span>
            <input name="button_search" src="images/search_btn.gif" class="button_search" type="image" />
          </form>
        </div>
      </div>
      <div class="clr"></div>
    </div>
  </div>
  <div class="content">
    <div class="content_resize"> 
      <div class="mainbar">
        <div class="article">

               <form id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

        </asp:ContentPlaceHolder>
    </div>
    </form>
      </div>
.....

和我使用MasterPAge的default.aspx：

protected void Page_Load(object sender, EventArgs e)
{
    Label ClientId = (Label)Master.FindControl("editbox_search");

    ASPxLabel_Err.Text = ClientId.Text;
}

我尝试将输入Control转换为Label，因为我找不到输入控件。

但我得到了nullReference这个逻辑，因为我无法将输入控件转换为标签控件。

Answer 1

var editbox = (HtmlInputControl)Master.FindControl("editbox_search");
Response.Write (editbox.Value);

Answer 2

试试这个

     var mastertxt = (System.Web.UI.HtmlControls.HtmlInputText)Master.FindControl("ctl00$editbox_search");
     ASPxLabel_Err.Text = mastertxt.Value;

Answer 3

首先，您需要将此标记设为“runat = server”，然后才能使用：

var txtEditBox =（System.Web.UI.HtmlControls.HtmlInputText）this.Page.Master.FindControl（“editbox_search”）;

ASPxLabel_Err.Text = txtEditBox.Value;

如何从母版页获取输入值

3 个答案: