Databases
StackOverflow2013
Postsdbo
PODropdown selected value isn't getting selected, it always shows the first value in selection
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PODropdown selected value isn't getting selected, it always shows the first value in selection
    primarykey
    data
    text
    <p>I have two dropdowlists ddprojecttype and ddprojectname. On selecting project type I'm populating projectnames into ddprojectname with jQuery and AJAX. It's showing properly only.</p> <p>However, whenever I am trying to make a selection on the dropdownlist it always selects the first item. And also it's behaviour is peculiar: while I am viewing the aspx page in the browser then it's showing all the project names into the dropdown. Whereas in case of viewing the source it's not showing the dropdown options at all.</p> <p>I will post the page code as well as the html for that and the jQery scripts for them:</p> <pre><code> &lt;asp:DropDownList ID="ddProjectTypeID" runat="server" &gt; &lt;/asp:DropDownList&gt; &lt;asp:DropDownList ID="ddProjectName" runat="server" &gt; &lt;/asp:DropDownList&gt; </code></pre> <p>The jQuery for the scripts which loads the project names successfully is:</p> <pre><code>$('[id*="ddProjectTypeID"]').change(function() { if ($(this).find(":selected").text() != "--Select--") { $.ajax({ type: 'POST', contentType: "application/json; charset=utf-8", url: 'Services/Service.asmx/GetProjectNames', data: '{"p_type_id":"' + $(this).find(":selected").val() + '"}', dataType: "json", success: function(data, textStatus) { if (textStatus == "success") { var myObject = data.d; $('[id*="ddProjectName"] &gt;option').remove(); $('[id*="ddProjectName"]').append($('&lt;option&gt;&lt;/option&gt;').val("--Select--").html("--Select--")); for (var i = 0; i &lt;= myObject.length - 1; i++) { $('[id*="ddProjectName"]').append($('&lt;option&gt;&lt;/option&gt;').val(myObject[i].project_id) .html(myObject[i].project_name)); } } }, error: function(data, textStatus) { alert('An error has occured retrieving data!'); } }); } }); </code></pre> <p>It loads the names successfully onto the ddprojectnames dropdownlist:</p> <p>Curiously whenever I am executing this code : </p> <pre><code>protected void btnSubmit_Click(object sender, EventArgs e) { ScheduleDetails scdetails = new ScheduleDetails(); scdetails.ProjectTypeID = ddProjectTypeID.SelectedItem.Value; scdetails.ProjectID = ddProjectName.SelectedItem.Value; } </code></pre> <p>it only gets scdetails.ProjectTypeID = 1 but scdetails.ProjectID = "--Select--" </p> <p>I am not getting the reason why. Although I have loaded the projectnames from the cascading dropdown from projecttypeID even then also it gets "--select--" as result whenever irrespective I chose any value from ddprojectname ...</p> <p>Why is this happening? </p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. UShalfer
    1. USJoy
    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. VO
      singulars
      1. PODropdown selected value isn't getting selected, it always shows the first value in selection
      1. This table or related slice is empty.
      1. VTUpMod
    1. COjust a hunch- try commenting-out the line which populates the '----select---' option. What is the selected value now?
      singulars
      1. PODropdown selected value isn't getting selected, it always shows the first value in selection
      1. USJ. Ed
 

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