Getting first value of dropdownlist in Code behind on button click event

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Hi All,

I have five dropdownlist in my aspx page where there is static values and one button on click event on the button i want the values of dropdownlist in Label but when i m clicking the button the dropdownlist automatically appears the first value,

so in code behind i m getting the first value always,

ASP

<asp:DropDownList ID="drpProduct" runat="server" Width="104%" Style="margin-top: -4.2%; margin-left: 16px">
                                <asp:ListItem Value="--Select Product--"></asp:ListItem>
                                <asp:ListItem Value="All">All Product</asp:ListItem>
                                <asp:ListItem Value="Cotton S6">Cotton S6</asp:ListItem>
                                <asp:ListItem Value="Cotton S5">Cotton S5</asp:ListItem>
                                <asp:ListItem Value="Stone x 1">Stone x 1</asp:ListItem>
                                <asp:ListItem Value="Stone x 2">Stone x 1</asp:ListItem>
                            </asp:DropDownList>

<asp:Button ID="btnSearch" runat="server" CssClass="btn green" Text="Search" ValidationGroup="val" UseSubmitBehavior="false" OnClick="btnSearch_Click" />

And code behind is:

C#

lblProduct.Text = drpProduct.SelectedValue;

Please guide me on this...

Posted 10-Feb-15 0:38am

Amit Jadli

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Comments

jaket-cp 10-Feb-15 7:41am

Where in the page life cycle are you setting lblProduct.Text = drpProduct.SelectedValue;
Maybe the selected index is getting reset somewhere before hand.

ZurdoDev 10-Feb-15 7:49am

You probably are binding your dropdown in PageLoad without checking for IsPostBack.

2 solutions

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Avik Ghosh22 · Accepted Answer · 2015-02-10T19:53:00

Solution 2

C#

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            // bind your dropdown here
        }

    }
    protected void btnSearch_Click(object sender, EventArgs e)
    {
        Response.Write(drpProduct.SelectedValue);
    }

Posted 10-Feb-15 19:53pm

Avik Ghosh22

@shok kumar mishra · Accepted Answer · 2015-02-10T17:23:00

Solution 1

http://www.aspsnippets.com/Articles/Get-selected-value-of-HTML-Select-DropDownList-in-ASPNet-code-behind-using-C-and-VBNet.aspx[^]

Posted 10-Feb-15 17:23pm

@shok kumar mishra