not able to redirect users to another page with hyper link

Question

I have requirement where users are redirected youtube.com by using hyperlink control using below

I want to change the URL dynamically based on drop down list selected item by using below code.

protected void ddlPType_SelectedIndexChanged(object sender, EventArgs e) { int x = ddlPType.SelectedIndex; if (x == 0) { activateCerts.NavigateUrl = "http://www.youtube.com/watch?v=3AYoipyqOkQ"; activateCerts.Text = "activateCerts"; activateCerts.Target = "_blank"; //activateCerts.HRef = "http://www.youtube.com/watch?v=3AYoipyqOkQ"; } else if (x == 1) { //activateCerts.Target = "_blank"; //activateCerts.HRef = "http://www.youtube.com/watch?v=hk3hxUuwg0w"; activateCerts.Text = "activateCerts"; activateCerts.NavigateUrl = "http://www.youtube.com/watch?v=3AYoipyqOkQ"; }

and this is the one aspx code

<asp:Label runat="server" style="padding-left:23rem;" Text="pls watch this video on How to"></asp:Label> <asp:HyperLink ID="activateCerts" runat="server"></asp:HyperLink>

but when I click on link I am not able to open a youtube video

checked auto postback is true and I solved the problem by putting this check on pageLoad — Glory Raj
– Glory Raj, Commented Nov 27, 2014 at 6:15

Mohammad Arshad Alam · Accepted Answer · 2014-11-27 06:17:16Z

This is working for me by setting AutoPostBack=true for dropdpwn ddlPType :

<form id="form1" runat="server"> <div> <asp:DropDownList runat="server" ID="ddlPType" AutoPostBack="true" OnSelectedIndexChanged="ddlPType_SelectedIndexChanged"> <asp:ListItem Text="Option 1" Selected="True" /> <asp:ListItem Text="Option 2" /> </asp:DropDownList> <br /> <asp:Label ID="Label1" runat="server" style="padding-left:23rem;" Text="pls watch this video on How to"></asp:Label> <asp:HyperLink ID="activateCerts" runat="server"></asp:HyperLink> </div> </form>

.cs Page :

 protected void ddlPType_SelectedIndexChanged(object sender, EventArgs e) { int x = ddlPType.SelectedIndex; if (x == 0) { activateCerts.NavigateUrl = "http://www.youtube.com/watch?v=3AYoipyqOkQ"; activateCerts.Text = "activateCerts"; activateCerts.Target = "_blank"; //activateCerts.HRef = "http://www.youtube.com/watch?v=3AYoipyqOkQ"; } else if (x == 1) { //activateCerts.Target = "_blank"; //activateCerts.HRef = "http://www.youtube.com/watch?v=hk3hxUuwg0w"; activateCerts.Text = "activateCerts"; activateCerts.NavigateUrl = "http://www.youtube.com/watch?v=3AYoipyqOkQ"; } }

Desmond · Accepted Answer · 2014-11-27 06:39:31Z

For your Dropdownlist named ddlPType, you need to make sure its AutoPostBack is true. You can set it in the Attribute Panel, or using the code:

<asp:DropDownList runat="server" ID="ddlPType" AutoPostBack="true" OnSelectedIndexChanged="ddlPType_SelectedIndexChanged">

By this step you should achieve your goal, but sometimes this is not that simple. You may need to make sure you put your data-bind (if there is) in

if (!Page.IsPostBack)

in Page_Load.

Also, Dropdownlist will only send data when the data is changed. That is to say, if you get two options sharing the same value, Dropdownlist may not respond you. For example:

if(!IsPostBack) { for(int i=0;i<10;i++)this.DropDownList1.Items.Add(new ListItem(i.ToString(),"same_value")); }

Here comes the most strange situation: you have done all above but it still does not work. Sometimes it happens in IE8. If you use window.showModalDialog() to show DropDownList, submitting will leads you to a new page. You need to add between head tag:

<base target=_self></base>

Hope my experience will do help.

Collectives™ on Stack Overflow

not able to redirect users to another page with hyper link

2 Answers 2

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Related