在Repeater控件访问文本框

本文介绍了在Repeater控件访问文本框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我能想到做到的所有方面，这显得非常的hackish。什么是做正确的方式，或者至少是最常见？

我检索从LINQ到SQL查询一组图像和数据绑定它和其他一些数据转发器。我需要一个文本框添加到中继器的每个项目，这将让用户改变每个图像的标题，很相似到Flickr。

如何访问文本框的Repeater控件，并知道哪些形象文本框是属于？

下面是中继器控制会是什么样子，有一个提交按钮，这将更新所有的图像行LINQ到SQL：

编辑：

这code工作

只要确保你不要被绑定之外吹你的价值观的路程，如果（！Page.IsPostBack）像我..哎呀。

＆LT; ASP：直放站ID =Repeater1=服务器＆GT;    ＆LT;＆ItemTemplate中GT;        ＆LT; D​​IV CLASS =itemBox＆GT;            ＆LT; D​​IV CLASS =imgclass＆GT;                ＆LT;标题='＆LT;％＃的eval（姓名）％＆GT;' HREF ='＆LT;％＃的eval（路径）％GT;'相对=画廊＆GT;                    ＆LT; IMG ALT ='＆LT;％＃的eval（姓名）％＆GT;' SRC ='＆LT;％＃的eval（路径）％GT;' WIDTH =260/＆GT;                ＆所述; / A＆GT;            ＆LT; / DIV＆GT;            ＆LT; ASP：文本框ID =TextBox1的WIDTH =230px=服务器＆GT;＆LT; / ASP：文本框＆GT;        ＆LT; / DIV＆GT;    ＆LT; / ItemTemplate中＆GT;＆LT; / ASP：直放站＆GT;

和提交点击：

保护无效的button1_Click（对象发件人，EventArgs的发送）{    的foreach（在Repeater1.Items的RepeaterItem项）    {        文本框txtName的=（文本框）item.FindControl（TextBox1中）;        如果（txtName的！= NULL）        {            字符串VAL = txtName.Text;            //做一些VAL        }    }}

解决方案

您是否尝试过类似下面的按钮点击： -

的foreach（在Repeater1.Items的RepeaterItem项）{      文本框txtName的=（文本框）item.FindControl（改为txtName）;      如果（txtName的！= NULL）      {      //做一些txtName.Text      }      图片IMG =（图）item.FindControl（图）;      如果（IMG！= NULL）      {      //做一些IMG      }}

/ *如果txtName的和IMG是文本框的ID和图像中的中继器分别控制。* /

希望这有助于。

All the ways I can think to do this seem very hackish. What is the right way to do this, or at least most common?

I am retrieving a set of images from a LINQ-to-SQL query and databinding it and some other data to a repeater. I need to add a textbox to each item in the repeater that will let the user change the title of each image, very similar to Flickr.

How do I access the textboxes in the repeater control and know which image that textbox belongs to?

Here is what the repeater control would look like, with a submit button which would update all the image rows in Linq-to-SQL:

Edit:

This code works

Just make sure you don't blow your values away by Binding outside of if(!Page.IsPostBack) like me.. Oops.

<asp:Repeater ID="Repeater1" runat="server"> <ItemTemplate> <div class="itemBox"> <div class="imgclass"> <a title='<%# Eval("Name") %>' href='<%# Eval("Path") %>' rel="gallery"> <img alt='<%# Eval("Name") %>' src='<%# Eval("Path") %>' width="260" /> </a> </div> <asp:TextBox ID="TextBox1" Width="230px" runat="server"></asp:TextBox> </div> </ItemTemplate> </asp:Repeater>

And Submit Click:

protected void Button1_Click(object sender, EventArgs e) { foreach (RepeaterItem item in Repeater1.Items) { TextBox txtName = (TextBox)item.FindControl("TextBox1"); if (txtName != null) { string val = txtName.Text; //do something with val } } }

解决方案

Have you tried something like following on the button click:-

foreach (RepeaterItem item in Repeater1.Items) { TextBox txtName= (TextBox)item.FindControl("txtName"); if(txtName!=null) { //do something with txtName.Text } Image img= (Image)item.FindControl("Img"); if(img!=null) { //do something with img } }

/* Where txtName and Img are the Ids of the textbox and the image controls respectively in the repeater.*/

Hope this helps.