无法从转发器中的TextBox获取文本

时间:2013-10-29 21:17:33

标签: c# asp.net textbox repeater

在这里画一个完整的空白,这应该是非常简单的,但我尝试的一切都不会起作用。

我只是想从TextBox中的Repeater获取值。

<asp:Repeater ID="rptQuestions" runat="server">
                <ItemTemplate>
                    <li>
                        <div class="">
                        <asp:Label ID="intQuestion" runat="server" Visible="false" Text='<%#Eval("intQuestion")%>'></asp:Label>
                        <asp:Label ID="intQuestionType" runat="server" Visible="false" Text='<%#Eval("intQuestionType")%>'></asp:Label>
                        <p>
                            <asp:Label ID="lblQuestion" runat="server" Text='<%#Eval("strQuestion").ToString().Replace("[*Garage*]", GarageName)%>'></asp:Label>
                        </p>
                        <asp:RadioButtonList ID="rblAnswers" RepeatDirection="Horizontal" TextAlign="Left" runat="server"></asp:RadioButtonList>
                        <asp:CheckBoxList ID="cblAnswers" RepeatDirection="Horizontal" TextAlign="Left"   runat="server" ></asp:CheckBoxList>
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="rblAnswers" CssClass="parsley-error" ErrorMessage="This value is required"></asp:RequiredFieldValidator>                            
                        <asp:TextBox ID="txtAnswers" TextMode="MultiLine" runat="server"></asp:TextBox>
                        </div>

                    </li>
                </ItemTemplate>
            </asp:Repeater>

我的点击代码如下

foreach (RepeaterItem ri in rptQuestions.Items)
{
  var QuestionId = (Label)ri.FindControl("intQuestion");
  var QuestionType = (Label)ri.FindControl("intQuestionType");
  int intQuestion = Convert.ToInt32(QuestionId.Text);
  int intQuestionType = Convert.ToInt32(QuestionType.Text);

  var txtAnswer = (TextBox)ri.FindControl("txtAnswers");

  if (txtAnswer == null)
     {
       intAnswer = 0;
       strAnswer = Request.Form[txtAnswer.Text];
       strAnswer = strAnswer + txtAnswer.Text;
       strAnswer = strAnswer + "No Data";
     }
     else
     {
       intAnswer = 0;
       strAnswer = Request.Form[txtAnswer.Text];
       strAnswer = strAnswer + "-" + Request.Form[txt.Text];
       strAnswer = strAnswer + "Test Stuff";
       strAnswer = strAnswer + txtAnswer.Text;
     }
}

值从标签返回没有问题,但文本框不会工作,因为你可以看到我已经使用了Request.Form [txtAnswer.Text]和txtAnswer.Text,但两者都没有工作。

请任何人都可以帮忙。

2 个答案:

答案 0 :(得分:2)

您是否将数据绑定到Page_Load中的Repeater?因为如果您没有检查PostBack,那么在您点击按钮事件之前,数据将被重新填充!

 protected void Page_Load(object sender, EventArgs e)
 {
      if (!Page.IsPostBack)
      {
           rptQuestions.DataSource = yourDataSource;
           rptQuestions.DataBind();
      }
 }

如果您没有IF语句检查IsPostBack值,那么它将重新填充您的Repeater,这就是标签工作的原因。 TextBox没有绑定到它的数据,因此输入的任何文本都将被删除。

答案 1 :(得分:0)

变化:

strAnswer = Request.Form[txtAnswer.Text];

为:

strAnswer = txtAnswer.Text; 

这应该有效。您已经在文本框中引用了:

 var txtAnswer = (TextBox)ri.FindControl("txtAnswers");