Data Controls :: Populate Multiple Column Values In DropDownList Using Pivot
Jan 29, 2014
I have one database in which student enroll no with his sem is stored . I want that if i enter stud enroll no then in dropdown list all the sem related to that stud should come. My database
Stud enroll no sem1 sem2 sem3 sem4
1 July 2013 Jan 2014 July 2014 Jan 2015
2 Feb 2013 Aug 2014 Feb 2014 Aug 2015
3 July 2012 Jan 2013 July 2013 Jan 2014
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I am refering below url:
[URL]
how to select items in dropdownlist if i bind it from database.
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I want to retrieve data from various column,which may some have blank value, so my problem is i want to retrieve only filled column(not any blank column) from multiple column.. I am doing this (given below) but it didn't return anything...
Column Name Value
Restaurant Restaurant
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--------------------------------------
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[CODE].....
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a 2
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a 4
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a 1
2
3
4
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What wrong with the code below?
if (e.Row.Cells[0].Text == "" && e.Row.Cells[5].Text != "")
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Below is my current codes which I have a problem.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
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}
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protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack == false)
{
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
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conn.Open();
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ds = sqlCmd.ExecuteReader();
dd_list.Items.Clear();
dd_list.DataSource = ds;
dd_list.DataTextField = "Column_Name";
dd_list.DataValueField = "Column_Name";
dd_list.DataBind();
dd_list.Items.Insert(0, "Select Option");
ds.Close();
conn.Close();
}
}
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[Code]....
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aspx
<asp:DropDownList ID="DropDownList1" runat="server" DataTextField="ct_name" DataValueField="ct_id" AppendDataBoundItems="true">
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----------------------
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