单击链接按钮后，数据列表中的单选按钮会丢失选择 [英] Radio button in Data list loses selection after link button click

问题描述

我在数据列表中有一个单选按钮.我在该页面本身的数据列表外放置了一个链接按钮.但是在做出选择并单击链接按钮后，所选内容失去了单选按钮. h2_lin>解决方案

我不确定您如何处理后面代码中的单选按钮.我已经尝试过以下示例，并且工作完美.

foreach (DataListItem item in dlItem.Items)
 {
   RadioButton rbt = (RadioButton)item.FindControl("rbtClick");
   if (rbt.Checked)
    {
      Response.Write("Checked");
    }
   else
    {
      Response.Write("Un-Checked");
    }
 }

请确保未单击链接按钮来调用数据列表绑定.由于它可能会重新绑定数据列表并丢失先前的选择.

Hi,

I have a radio button in data list.I placed a link button outside the data list in that page itself.But after making selection and clicking the link button the selection loses of radio button.How can i preserve this?

解决方案

I am not sure how you are dealing with the radio button in code behind. I have tried below example and working perfect.

foreach (DataListItem item in dlItem.Items)
 {
   RadioButton rbt = (RadioButton)item.FindControl("rbtClick");
   if (rbt.Checked)
    {
      Response.Write("Checked");
    }
   else
    {
      Response.Write("Un-Checked");
    }
 }

Please make sure that datalist binding is not calling on link button click. As it may re-bind the datalist and lost the previous selection.

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