Why lnkbtnlike.visible = false is not working onclick event in ASP.NET C# entity framework?

Question

1.00/5 (1 vote)

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The Problem is when i click OnClick event of lnkbtnLike the property lnkbtnLike.visible = false is not working. i debug the code and check its value , it successfully takes the value false but when page loads after click event lnkbtnLike is still visible to true. I can't understand why this is happening?

I am also using a repeater control on that page but these link buttons are out of reapeater body . I Think may be because of repeater control lnkbtnLike visible property is not working.. Please let me clear this. Thank you !

What I have tried:

<div class="row">
                            <div class="col-sm-12">
                               
                                 class="fa fa-thumbs-o-up" id="lblLike">
                                        
                                            <asp:LinkButton ID="lnkBtnLike" runat="server" Style="color: darkgray" OnClick="lnkBtnLike_Click">Likes</asp:LinkButton>
                                        
                                        
                                            <asp:LinkButton ID="lnkBtnUnlike" runat="server" OnClick="lnkBtnUnlike_Click" Visible="false">Liked</asp:LinkButton>
                                        
                                   
                                      ^__i class="fa fa-comments">
                                    <asp:Label ID="lblComment" runat="server"></asp:Label>
                            </div>
                        </div>

<asp:Panel ID="Panel1" runat="server">
                        <div class="row">
                            <asp:Repeater ID="rptComment" runat="server">

                                <ItemTemplate>


                                    <!-- main-comment-container -->
                                    <div class="comments-container">

                                        <ul class="comments-list">
                                            <li>
                                                <div class="comment-main-level">
                                                    <!-- Avatar -->
                                                    <div class="comment-avatar">

                                                        <img src="User/Attachments/userpro.jpg" alt="">
                                                    </div>
                                                    <!-- CommentBox -->
                                                    <div class="comment-box">
                                                        <div class="comment-head">
                                                            <h6 class="comment-name"><a href="#"><%#Eval("ProfileName") %></a></h6>
                                                            <span><%#Eval("CreatedDate") %></span>
                                                        </div>
                                                        <div class="comment-content">
                                                            <%# Eval("Comment") %>
                                                        </div>
                                                    </div>
                                                </div>
                                                <!-- Relpy-container -->
                                                <%--<ul class="reply-list">
                                                    <li>
                                                        <div class="comment-main-level">
                                                            <!-- Avatar -->
                                                            <div class="comment-avatar">
                                                                <img src="User/Attachments/userpro.jpg" alt=""></div>
                                                            <!-- CommenBox -->
                                                            <div class="comment-box">
                                                                <div class="comment-head">
                                                                    <h6 class="comment-name"><a href="">Biju Nakarmi</a></h6>
                                                                    <span>have 7 minutes</span>
                                                                </div>
                                                                <div class="comment-content">
                                                                    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Velit omnis animi et iure laudantium vitae, praesentium optio, sapiente distinctio illo?
                                                                </div>
                                                            </div>
                                                        </div>
                                                        <!-- Relpy-container -->
                                                        <ul class="reply-list">
                                                            <li>
                                                                <div class="comment-main-level">
                                                                    <!-- Avatar -->
                                                                    <div class="comment-avatar">
                                                                        <img src="http://younginnovations.com.np/images/staffs/Rakesh.png" alt=""></div>
                                                                    <!-- CommentBox -->
                                                                    <div class="comment-box">
                                                                        <div class="comment-head">
                                                                            <h6 class="comment-name by-author"><a href="g">Rakesh Nunchen Pradhan</a></h6>
                                                                            <span>have 2 minutes</span>
                                                                        </div>
                                                                        <div class="comment-content">
                                                                            Lorem ipsum dolor sit amet, consectetur adipisicing elit. Velit omnis animi et iure laudantium vitae, praesentium optio, sapiente distinctio illo?
                                                                        </div>
                                                                    </div>
                                                                </div>
                                                            </li>
                                                            <!-- Relpy-container -->
                                                            <ul class="reply-list">
                                                                <li>
                                                                    <div class="comment-main-level">
                                                                        <!-- Avatar -->
                                                                        <div class="comment-avatar">
                                                                            <img src="http://younginnovations.com.np/images/staffs/Biju.png" alt=""></div>
                                                                        <!-- CommentBox -->
                                                                        <div class="comment-box">
                                                                            <div class="comment-head">
                                                                                <h6 class="comment-name"><a href="">Biju Nakarmi</a></h6>
                                                                                <span>have 10 minutes</span>
                                                                            </div>
                                                                            <div class="comment-content">
                                                                                Lorem ipsum dolor sit amet, consectetur adipisicing elit. Velit omnis animi et iure laudantium vitae, praesentium optio, sapiente distinctio illo?
                                                                            </div>
                                                                        </div>
                                                                    </div>
                                                                    <!-- Relpy-container -->
                                                                    <ul class="reply-list">
                                                                        <li>
                                                                            <div class="comment-main-level">
                                                                                <!-- Avatar -->
                                                                                <div class="comment-avatar">
                                                                                    <img src="http://younginnovations.com.np/images/staffs/Sweta.png" alt=""></div>
                                                                                <!-- Comment-box -->
                                                                                <div class="comment-box">
                                                                                    <div class="comment-head">
                                                                                        <h6 class="comment-name"><a href="">Sweta Shrestha</a></h6>
                                                                                        <span>have 30 minutes</span>
                                                                                    </div>
                                                                                    <div class="comment-content">
                                                                                        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Velit omnis animi et iure laudantium vitae, praesentium optio, sapiente distinctio illo?
                                                                                    </div>
                                                                                </div>
                                                                            </div>
                                                                        </li>
                                                                    </ul>
                                                                </li>

                                                                <li>
                                                                    <div class="comment-main-level">
                                                                        <!-- Avatar -->
                                                                        <div class="comment-avatar">
                                                                            <img src="http://younginnovations.com.np/images/staffs/Rakesh.png" alt=""></div>
                                                                        <!-- CommentBox -->
                                                                        <div class="comment-box">
                                                                            <div class="comment-head">
                                                                                <h6 class="comment-name by-author"><a href="">Rakesh Nunchen Pradhan</a></h6>
                                                                                <span>have 10 minutes</span>
                                                                            </div>
                                                                            <div class="comment-content">
                                                                                Lorem ipsum dolor sit amet, consectetur adipisicing elit. Velit omnis animi et iure laudantium vitae, praesentium optio, sapiente distinctio illo?
                                                                            </div>
                                                                        </div>
                                                                    </div>
                                                                </li>
                                                            </ul>
                                                        </ul>
                                                    </li>
                                                </ul>--%>
                                            </li>

                                        </ul>
                                    </div>
                                </ItemTemplate>
                            </asp:Repeater>
                        </div>
                        </asp:Panel>

protected void lnkBtnLike_Click(object sender, EventArgs e)
   {
       try
       {
           using(database db = new database())
           {
               tblBlogLike tbl = new tblBlogLike();
               tbl.UserId = (Int64.Parse(new StandardModule().Decrypt(HttpUtility.UrlDecode(Request.QueryString["uid"])).ToString()));
               tbl.BlogId = (Int64.Parse(new StandardModule().Decrypt(HttpUtility.UrlDecode(Request.QueryString["bid"])).ToString()));
               tbl.Like = (Int64.Parse(new StandardModule().Decrypt(HttpUtility.UrlDecode(Request.QueryString["uid"])).ToString()));
               tbl.Status = "A";
               tbl.Flag = "NA";
               tbl.Remarks = "NA";
               tbl.CreatedDate = DateTime.Now;
               db.tblBlogLikes.Add(tbl);
               db.SaveChanges();
               db.Entry<tblBlogLike>(tbl).Reload();

               lnkBtnLike.Visible= false;
               lnkBtnUnlike.Visible= true;



               Response.Redirect(Request.Url.AbsoluteUri, false);



           }

       }
       catch(Exception ex)
       {
           Response.Redirect(ex.Message);
       }
   }

Posted 6-Nov-17 3:07am

Umair Nafis

Updated 6-Nov-17 5:48am

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Karthik_Mahalingam · Answer 1 · 2017-11-06T03:36:00

Solution 1

Response.Redirect(Request.Url.AbsoluteUri, false);

Since you are redirecting the event to the same page, it reloads the page. so the visibility will set to the default value. try removing the line and check.

Posted 6-Nov-17 3:36am

Karthik_Mahalingam

Comments

Umair Nafis 6-Nov-17 11:00am

i tried but got the same result.

Umair Nafis 6-Nov-17 11:01am

string uid = Request.QueryString["uid"].ToString();
string bid = Request.QueryString["bid"].ToString();
Response.Redirect(string.Format("blog.aspx?uid={0}&bid={1}", uid, bid), false);

Karthik_Mahalingam 6-Nov-17 11:04am

Why do you have to redirect ?

Umair Nafis 6-Nov-17 11:09am

this is my page load code:

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Request.QueryString["uid"] != null)
{
getUser(Int64.Parse(new StandardModule().Decrypt(HttpUtility.UrlDecode(Request.QueryString["uid"])).ToString()));
if (Request.QueryString["bid"] != null)
{

blogg(Int64.Parse(new StandardModule().Decrypt(HttpUtility.UrlDecode(Request.QueryString["bid"])).ToString()));
bindblog();
FillCommentRepeater();
CommentsCount();
LikesCount();
pnlComment.Visible = true;

}
}

else if (Request.QueryString["bid"] != null)
{
blogg(Int64.Parse(new StandardModule().Decrypt(HttpUtility.UrlDecode(Request.QueryString["bid"])).ToString()));
bindblog();
CommentsCount();
}
else
{
bindblog();
}
}
}

Umair Nafis 6-Nov-17 11:08am

when i remove redirect whatever data present on the page disappear. even url values not changing

Karthik_Mahalingam 6-Nov-17 11:15am

means you are using the query string value to process the request.
you shall store the values in a session and use it across.. and remove the Response.Redirect

or else you shall pass the visibility information in the query string and redirect to the same page and read the query string values and set the visibility

Umair Nafis 6-Nov-17 11:21am

Sorry sir, but If possible can u please write the code for session , it will be very helpfull to me.

Karthik_Mahalingam 6-Nov-17 11:26am

 Session["anyName"] = value; // write to session 
 var value1 = Session["anyName"]; read from session

Umair Nafis 6-Nov-17 11:29am

and where this value1 will use. ?

Karthik_Mahalingam 6-Nov-17 11:34am

it is just for an example, you replace it with uid, bid

Karthik_Mahalingam 6-Nov-17 11:35am

refer this
Asp.Net Store, Retrieve Value in Session using C#, [^]

Umair Nafis 6-Nov-17 11:23am

If i pass the visibility information in the query string which is present on page load than if a non registered user visit that page he can access that linkLikeButton, which creates nullexception like errors

Karthik_Mahalingam 6-Nov-17 11:27am

then handle the null values

if(!string.isNullOrEmpty(obj)) {// Your code..}

Umair Nafis 6-Nov-17 11:31am

As I am a beginer in asp.net i really not able to get your point. :(