如何从直放站得到更新文本框的值？

问题描述

我有一个转发控制如下所示。它有一个文本控制。当保存按钮被点击，我需要从文本框中的文字更新。我有以下的code;但它给了我，当我把文本框的文本旧值。

我们怎样才能获得更新的文字？

code背后

 保护无效Save_Click（对象发件人，EventArgs的发送）
    {        的foreach（在重新preports.Items的RepeaterItem项）
        {
            如果（item.ItemType == || ListItemType.Item == item.ItemType ListItemType.AlternatingItem）
            {                字符串updatedEmail =（（文本框）item.Controls [5]）文本。
                串originalEmail =（（HiddenField）item.Controls [7]）值。
            }
        }
    }
 

控制标记

 ＆LT; D​​IV CLASS =repeaterTableBorder＆GT;
                ＆LT; ASP：直放站ID =重新preports=服务器＆GT;
                    ＆LT;＆ItemTemplate中GT;
                        ＆LT; D​​IV ID =repeaterIdentifier级=repeaterIdentifier＆GT;
                            ＆LT; D​​IV CLASS =reportTitle＆GT;
                                ＆所述;％＃评估和演示（REPORTNAME）+：％＆GT;
                                ＆LT; ASP：HiddenField ID =hdnLastChangeTime=服务器值='＆LT;％＃（（日期时间）的eval（RecordSelectionTime））的ToString（MM / DD / YYYY HH：MM：SS.FFF TT ）％＆GT;' /＆GT;
                                ＆LT; ASP：HiddenField ID =hdnReportID=服务器值='＆LT;％＃的eval（$的ReportType C $ C）％GT;' /＆GT;
                            ＆LT; / DIV＆GT;
                            ＆LT; D​​IV CLASS =reportFrequency＆GT;
                                 ＆LT;％＃频率 - 周刊％GT;
                            ＆LT; / DIV＆GT;
                        ＆LT; / DIV＆GT;
                        ＆LT; D​​IV CLASS =reportContent＆GT;
                            ＆LT; D​​IV CLASS =repeaterLine＆GT;
                                ＆LT; ASP：文本框ID =txtEmailRecipients=服务器级=文字编辑
                                    文字='＆LT;％＃的eval（ExistingRecipients）％＆GT;'
                                    的TextMode =多行＆GT;＆LT; / ASP：文本框＆GT;
                                 ＆LT; ASP：HiddenField ID =hdnOriginalRecipients=服务器值='＆LT;％＃的eval（ExistingRecipients）％＆GT;' /＆GT;
                            ＆LT; / DIV＆GT;
                        ＆LT; / DIV＆GT;                    ＆LT; / ItemTemplate中＆GT;
                ＆LT; / ASP：直放站＆GT;
            ＆LT; / DIV＆GT;
 

解决方案

我认为你要绑定的转发到它的数据源还回发。你应该这样做，只有如果（！的IsPostBack）。否则，值将被覆盖。

 保护无效的Page_Load（对象发件人，EventArgs的发送）
{
    如果（！的IsPostBack）
    {
        //绑定code在这里
    }
}
 

I have a repeater control as listed below. It has a textbox control. When a save button is clicked, I need to get the updated text from the textbox. I have the following code; but it gives me the old value when I take the textbox text.

How can we get the updated text?

Code Behind

    protected void Save_Click(object sender, EventArgs e)
    {

        foreach (RepeaterItem item in repReports.Items )
        {
            if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem )
            {

                string updatedEmail = ((TextBox)item.Controls[5]).Text;
                string originalEmail = ((HiddenField)item.Controls[7]).Value;


            }
        }
    }

Control Markup

  <div class="repeaterTableBorder">
                <asp:Repeater ID="repReports" runat="server">
                    <ItemTemplate>
                        <div id="repeaterIdentifier" class="repeaterIdentifier">
                            <div class="reportTitle">
                                <%# Eval("ReportName") + ":"%>
                                <asp:HiddenField ID="hdnLastChangeTime" runat="server" Value= '<%# ((DateTime)Eval("RecordSelectionTime")).ToString("MM/dd/yyyy hh:mm:ss.fff tt")%>' />
                                <asp:HiddenField ID="hdnReportID" runat="server" Value='<%# Eval("ReportTypeCode")%>' />
                            </div>
                            <div class="reportFrequency">
                                 <%# " Frequency - Weekly" %>
                            </div>
                        </div>
                        <div class="reportContent">
                            <div class="repeaterLine">
                                <asp:TextBox ID="txtEmailRecipients" runat="server" class="textEdit"
                                    Text='<%# Eval("ExistingRecipients") %>'
                                    TextMode="MultiLine"></asp:TextBox>
                                 <asp:HiddenField ID="hdnOriginalRecipients" runat="server" Value='<%# Eval("ExistingRecipients")%>' />
                            </div>
                        </div>

                    </ItemTemplate>
                </asp:Repeater>
            </div>

解决方案

I assume that you are binding the Repeater to it's DataSource also on postbacks. You should do that only if(!IsPostBack). Otherwise the values will be overwritten.

protected void Page_Load(Object sender, EventArgs e)
{
    if(!IsPostBack)
    {
        // databinding code here
    }
}

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