Asp.net controls not updating after a postback

Question

0.00/5 (No votes)

See more:

SQL

I'm writing code to read data from asp controls to update records in a database. I've been debugging the last day and I've tracked it back to something that I ought to have noticed before.

The code first populates the controls with the existing values from the database. When I click SAVE, it should read the current values from the controls and save with those. Unfortunately, what it's actually doing is using the values of the controls before a change was made to them. It's not seeing the change to the controls.

when we refresh whole page control show updated values, is that any way when we save data and that data reflect with user control after post pack.

aspx page:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="VerifyFile.aspx.cs" Inherits="VerifyFile"
Theme="Default" %>

<%@ Register TagPrefix="mlm" TagName="fileheader" Src="FileHeader.ascx" %>

XML

<body class="lyt_body_class">
    <form id="form1" runat="server">

<mlm:fileheader ID="Header2" runat="server"/>

</body>

User Control Cs file:

CSS

public partial class FileHeader : System.Web.UI.UserControl
{
    

    protected void Page_Load(object sender, EventArgs e)
    {

    Bindcontrol();

    }
}

Posted 21-Oct-14 18:50pm

Kamar Shahzad

Updated 21-Oct-14 19:51pm

v2

Add a Solution

Comments

[no name] 22-Oct-14 1:26am

Check that you should be binding the controls under the condition if(!Page.IsPostBack) in the OnLoad event.

DamithSL 22-Oct-14 1:33am

need more information, can you update question with sample code related to this issue?

Kamar Shahzad 22-Oct-14 1:39am

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="VerifyFile.aspx.cs" Inherits="VerifyFile"
Theme="Default" %>
Please have a look ,control is calling in a .aspx page and control bind fileheader.ascx.cs file (that is the problem)

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<%@ Register TagPrefix="mlm" TagName="fileheader" Src="FileHeader.ascx" %>

public partial class FileHeader : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
BindUserControl();
}

3 solutions

Solution 3

Call you binding function like-

on page_load-

If(!IsPostBack)
{
Call here binding function
}

Posted 21-Oct-14 21:00pm

AshishvermaMCA

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Kamar Shahzad · Accepted Answer · 2014-10-21T20:57:00

Now issue resolved i used panel for dynamically load that user controls

see the code:

<from>

XML

<asp:Panel ID="plnfileHeader" runat="server">
</asp:Panel>

verify.aspx page

SQL

if (!IsPostBack)
        {

Control uc = this.LoadControl("~/FileHeader.ascx");

plnfileHeader.Controls.Add(uc);
}

Member 11148158 · Accepted Answer · 2014-10-21T20:10:00

Solution 1

check your contents of the !IsPostBack in your C# file and set your controls property AutoPostBack = true !

Posted 21-Oct-14 20:10pm

Member 11148158

Comments

Kamar Shahzad 22-Oct-14 2:18am

view this please also checking post back
if (!IsPostBack)
{
BindControl();
}
else
{
BindControl();
}

Member 11148158 22-Oct-14 2:28am

try setting the autopostback property to true for the control you are binding the data with