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POFor a dropdownlist, SelectedIndex always returns the value 0
primarykey
Id
10058107
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AcceptedAnswerId
10058452
AnswerCount
2
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CommentCount
4
CommunityOwnedDate
CreationDate
2012-04-07T20:31:09.873
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LastActivityDate
2012-04-07T21:14:42.833
LastEditDate
2012-04-07T21:02:51.887
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OwnerUserId
1318369
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PostTypeId
1
Score
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text
Body
<p>I have a dropdown in my webpage, which always returns the value 0 as the selected index no matter whichever item the user selects. I have populated the dropdown using a DB query. And I am populating in on Page_Load method in my page. The code shown below does the specified work: int danceid;</p> <pre><code> protected void Page_Load(Object sender, EventArgs e) { if (!IsPostBack) { PopulateDanceDropDown(); } } private void PopulateDanceDropDown() { DataTable dt = new DataTable();DataRow row = null; dt.Columns.Add("Did", Type.GetType("System.Int32")); dt.Columns.Add("DName", Type.GetType("System.String")); var dancer_dance = (from dd in context.DANCER_AND_DANCE where dd.UserId == dancerId select new { Value = dd.DanceId, Text = dd.DanceName }).ToList(); foreach (var dndd in dancer_dance) { row = dt.NewRow(); row["Did"] = dndd.Value; row["DName"] = dndd.Text; dt.Rows.Add(row); dances.DataSource = dt; dances.DataTextField = dt.Columns[1].ToString(); if (!IsPostBack) { dances.DataBind(); } } protected void changeIndex(object o, EventArgs e) { danceid = dances.SelectedIndex; } protected void dropthedance(object o, EventArgs e) { int danceIDFromDropDown = danceid; var dancer_dance = from dd in context.DANCER_AND_DANCE where dd.DanceId == danceIDFromDropDown select dd; foreach (var dndd in dancer_dance) { context.DANCER_AND_DANCE.DeleteOnSubmit(dndd); } try { context.SubmitChanges(); } catch (Exception ex) { Console.WriteLine(ex); } } </code></pre> <p>The line int danceIDFromDropDown = danceid; in the method dropthedance always has the value 0. Pleaseeeeeeeeeeeeee help someone </p>
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<c#><asp.net>
Title
For a dropdownlist, SelectedIndex always returns the value 0
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1. PO
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1. USAliRıza Adıyahşi
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1. USuser1318369
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1. PO
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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.