Forms Data Controls :: Dropdownlist Always Returns First Value?
Sep 4, 2010on using dropdown list i always get the default value on selecting any item in list
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My code is below..
For dropdownlist1:
[Code]....
For dropdownlist2:
[Code]....
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<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="SqlDataSource1" EnableModelValidation="True"
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<asp:CommandField ShowDeleteButton="True" CausesValidation="false" ShowEditButton="True"
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<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderText="Name" SortExpression="name">
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<asp:Label ID="lblRegionName" runat="Server" Text='<%# Bind("name") %>' Width="200px"></asp:Label>
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<EditItemTemplate>
<asp:TextBox runat="server" ID="EditRegionName" OnTextChanged="EditRegionName_Updated"
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<FooterTemplate>
<asp:TextBox runat="server" ID="InsertRegionName" Text='' Width="200px" />
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<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderText="Archived" SortExpression="IsArchive">
<ItemTemplate>
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<EditItemTemplate>
<asp:CheckBox runat="server" OnCheckedChanged="EditArchive_CheckedChanged" ID="EditArchive"
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<FooterTemplate>
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<EditItemTemplate>
</EditItemTemplate>
<FooterTemplate>
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<EmptyDataTemplate>
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<asp:Button runat="server" ID="NoDataInsert" CssClass="contentButton" Text="Insert"
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</asp:GridView>
<asp:Button runat="server" ID="Add" Text="Add" OnClick="Add_Click" />
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Code Behind:
protected void Page_Load(object sender, EventArgs e)
{
GridView1.DataBind();
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{
int index = e.RowIndex;
GridViewRow currentrow = ((GridView)sender).Rows[index];
TextBox txtbox = (TextBox)currentrow.FindControl("EditRegionName");
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[Code]....
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Mar 29, 2010[Code]....
[Code]....
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Jul 13, 2010I have an aspx page with the following controls:
2 DropDown lists
1 ListView
1 FormView
The procedure is as follows:
STEP 1:
One selects items from the dropdown lists and click the Search button.
The ListView displays all the entries that match the criteria.
STEP 2:
Each entry in the ListView is clickable to select more details in the FormView.
Everything works perfectly well. However I'm testing the selected values after each postback based on the following script:
[Code]....
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Forms Data Controls :: How To Extract Value From A Dropdownlist After Bind 7 Column Name In A Dropdownlist
Mar 29, 2011I have a table and 7 column name.
I bind the 7 column name in one dropdownlist.
Now the problem is,how do I extract the data value in a dropdownlist?
For example,
Dropdownlist contain 7 column name
-subject_name
-subject_code
-venue
-time
-seat_no
-admission_no
-subject_id
when I click the subject_name,I want it to appear in a gridview
Example
Math|9.00-10.00|Hall|18|09090J|...
Below is my current codes which I have a problem.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "SELECT '" + dd_list.SelectedValue+ "' FROM examtimetable ";
adapSel = new SqlDataAdapter(mySQL, conn);
conn.Open();
DataSet dsSel = new DataSet();
adapSel.Fill(dsSel);
GridView1.DataSource = dsSel;
GridView1.DataBind();
conn.Close();
}
Previously I have bind 7 column name in my dropdownlist
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");
SqlCommand sqlCmd = new SqlCommand("select column_name from information_schema.columns where table_name='examtimetable' and COLUMN_NAME not like '%ID'", conn);
conn.Open();
SqlDataReader ds;
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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protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
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SqlDataAdapter adapSel;
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[Code]....
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