How to Show or Hide Controls Dynamically





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Show or hide controls through code behind or through JQuery
Introduction
This tip will help you know the tricks behind showing or hiding the controls.
Background
Many people search for the same solution. So I planned to post this as a tip.
Using the Code
You can show or hide controls in many ways. I will explain a few of them.
1. Using Code Behind
Just load content to be shown or hidden in panel and set visibility="false"
. When user clicks on button, set panel visibility="true"
.
Example:
HTML Code
<div>
Question 1. what is object..?
<br />
Answer : Object is a instance of class
<br />
<asp:Button ID="Button1" runat="server" Text="explain" />
<br />
<asp:Panel ID="panel1" Visible="false" runat="server">
A class or struct definition is like a blueprint that specifies what the type can
do. An object is basically a block of memory that has been allocated and configured
according to the blueprint. A program may create many objects of the same class.
dynamically.
</asp:Panel>
</div>
VB Code
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles Button1.Click
If panel1.Visible = True Then
panel1.Visible = False
Button1.Text = "explain"
Else
panel1.Visible = True
Button1.Text = "Hide"
End If
End Sub
You can also use CSS property to do the same..
Initially, you have to set style='display:none;'
for panel and through code behind, you can change CSS property like panel1.Style.Add("display","block")
.
2. Using JQuery
Script
<script src="js/jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function()
{
$("#div1").hide();
$("#Button1").click(function()
{
$("#div1").toggle();
});
});
</script>
HTML
<div>
Question 1. what is object..?
<br />
Answer : Object is a instance of class
<br />
<input id="Button1" type="button" value="explain" />
<br />
<div id="div1">
A class or struct definition is like a blueprint that specifies what the type can
do. An object is basically a block of memory that has been allocated and configured
according to the blueprint. A program may create many objects of the same class.
</div>
</div>
Also, you can use CSS property to do the same.
$(document).ready(function()
{
$("#div1").css("display","none");
$("#Button1").click(function()
{
$("#div1").css("display","block");
});
});
You can refer to this link for more JQuery examples.