Databases
StackOverflow2013
Postsdbo
POAutoPostBack="true" doesn't work for DropDownList with DataSource
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAutoPostBack="true" doesn't work for DropDownList with DataSource
    primarykey
    data
    text
    <p>I have following *.aspx page</p> <pre><code>&lt;%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Admin_Test" %&gt; &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" &gt; &lt;head id="Head1" runat="server"&gt; &lt;title&gt;Untitled Page&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;form id="form2" runat="server"&gt; &lt;div&gt; &lt;asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" DataTextField="Name" DataValueField="FieldKey" /&gt; &lt;asp:Label ID="Label1" runat="server" Text="Label"&gt;&lt;/asp:Label&gt; &lt;/div&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>and *.aspx.cs page</p> <pre><code>using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Collections.Generic; using System.Linq; public partial class Admin_Test : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { DataClassesDataContext datacontext = new DataClassesDataContext(); DropDownList1.DataSource = datacontext.GetAllDepartments(false); DropDownList1.DataBind(); } } } </code></pre> <p>When I change the value in dropdownList (in browser), it does PostBack, but it selects the first item of list after PostBack - it doesn't save my value.</p> <p>GetAllDepartments(isDeleted) is a stored procedure, it returns a List of objects with two properties - FieldKey and Name.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USSir Hally
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COplease verify while postback the control enters inside if(!Postback) in page_load method.
      singulars
      1. POAutoPostBack="true" doesn't work for DropDownList with DataSource
      1. USRamakrishnan
    2. COyou can also use SelectedIndexChanged event,make a break point in the method and find out the value of DropDownList1.SelectedValue
      singulars
      1. POAutoPostBack="true" doesn't work for DropDownList with DataSource
      1. USRamakrishnan
    3. COim confused - what are you trying to do on selected index changed? You are posting back on index changed, but have no event handler. (or logic in Page_Load to handle the postback)
      singulars
      1. POAutoPostBack="true" doesn't work for DropDownList with DataSource
      1. USRPM1984
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload