How to use FindControl to get information from TextBox - GridView

Question

1.00/5 (1 vote)

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ASP.NET

<asp:GridView ID="GridView1" runat="server" CellPadding="1" CellSpacing="1"  DataKeyNames="PostID"
                       AutoGenerateColumns="False" Width="98%" OnRowCommand="GridView1_RowCommand"
                       AllowPaging="True" ShowHeader="false" onrowdatabound="GridView1_RowDataBound" BackColor="White" RepeatLayout="Table" BorderColor="#B0E3FF" BorderStyle="None" BorderWidth="1px" style="margin-left: 9px; height:auto">
 
 <asp:Button ID="btnComnt" runat="server" OnClick="btnComnt_Click" class="btnComment" Text="Comment" />
                 <asp:HiddenField ID="HiddenField1" Value='<%#Eval("PostID") %>' runat="server" />   
 
 </asp:GridView>

I do get the data into the HiddenField .

C#

protected void btnComnt_Click(object sender, EventArgs e)
        {
            int userid = int.Parse(Session["UnAuthentication"].ToString());
            string date = DateTime.Now.ToString();
            int privates = 0;

            TextBox txtNewComent = FindControl("txtComent") as TextBox;
            HiddenField postNo = FindControl("HiddenField1") as HiddenField;

                Post post = new Post();
                post.Comment = new Comments(int.Parse(postNo.Value), txtNewComent.Text, userid);
                dll.PostReply(post);
              
            
        }

I want to add the values from TextBox and HiddenField when i am adding the Post.

Please help me with the code to take the values from the HiddenField on GridView to postNo.
I can populate value to HiddenField but i cannot read it back from code behind

Posted 20-Sep-14 20:24pm

210032278

Updated 20-Sep-14 20:36pm

ChauhanAjay

v2

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Comments

Kornfeld Eliyahu Peter 21-Sep-14 4:55am

The mark-up you posted here not even valid!!!

[no name] 21-Sep-14 4:58am

i do have a full make up, but what i want you to focus on the most is the code behind cos that's what you gonna need to solve this problem.

Kornfeld Eliyahu Peter 21-Sep-14 5:00am

Remember that all I have is what you posted here - so when you simplify your code (and that is a good idea to do) you must take care that it still will be valid...
According to your comment I assume that your button and hidden field are in a row template? Am I right?

[no name] 21-Sep-14 5:06am

Thank for reading my question. I got what i was looking for but the only prob now is that is looping several time and everytime it loop, it add a multiple records...

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210032278 · Answer 1 · 2014-09-20T23:03:00

Thanx to you who tryed to solve or have time to read my question. Here is the solution i was looking for

C#

foreach (GridViewRow row in GridView1.Rows)
          {

              string textBoxText = ((TextBox)row.FindControl("txtComent")).Text;

              string userId = ((HiddenField)row.FindControl("HiddenField1")).Value;




                      Post post = new Post();
                      post.Comment = new Comments(int.Parse(userId), textBoxText.ToString(), userid);
                      dll.PostReply(post);
                      this.PopulateData();


          }