ASP Dot NET Online Training Services by Quontra Solutions: July 2014

Tuesday, 29 July 2014

c# example – Datetime Days in month

Sometimes we need to know programmatically that how many days exists in current month from a date time object. or how many days exists in any specific month. we are know that in july there are 31 days and in june there are 30 days. but how can we get it by .net programming? there is a simple solution. here we usees a date time function method name DaysInMonth. pass the two argument year and month number. it will output the exact days number.

datetime-days-in-month.aspx :

<%@ Page Language=“C#” AutoEventWireup=“true”%>
<!DOCTYPE html>
<script runat=“server”>
protected void Button1_Click(object sender, System.EventArgs e)
{
//initialize a datetime variable with today
DateTime today = DateTime.Today;
//get number of days in current month
int numberOfDays = DateTime.DaysInMonth(today.Year,today.Month);
Label1.Text = “today : “ + today.ToLongDateString();
Label1.Text += “<br /><br />days in current month : “;
Label1.Text += numberOfDays;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>c# example - datetime days in month</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:MidnightBlue; font-style:italic;”>
c# example - datetime days in month
</h2>
<hr width=“550″ align=“left” color=“Gainsboro” />
<asp:Label
ID=“Label1″
runat=“server”
Font-Size=“Large”
Font-Names=“Comic Sans MS”
>
</asp:Label>
<br /><br />
<asp:Button
ID=“Button1″
runat=“server”
Text=“get number of days in current month”
OnClick=“Button1_Click”
Height=“40″
Font-Bold=“true”
/>
</div>
</form>
</body>
</html>

How to change asp.net Button width programmatically

How to set, change Button width programmatically:

<%@ Page Language=“C#” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
protected void Button2_Click(object sender, System.EventArgs e)
{
Button1.Width = 200;
}
protected void Button3_Click(object sender, System.EventArgs e)
{
Button1.Width = 300;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to set, change Button width programmatically</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Red”>Button Example: Width</h2>
<asp:Button
ID=“Button1″
runat=“server”
Text=“Test Button Width”
ForeColor=“SaddleBrown”
Font-Bold=“true”
Height=“30″
/>
<br /><br />
<asp:Button
ID=“Button2″
runat=“server”
Text=“Button Width 200″
OnClick=“Button2_Click”
/>
<asp:Button
ID=“Button3″
runat=“server”
Text=“Button Width 300″
OnClick=“Button3_Click”
/>
</div>
</form>
</body>
</html>

Change Label border color Programmatically in ASP.NET

Change Label border color Programmatically in ASP.NET

<%@ Page Language=“C#” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
protected void Button1_Click(object sender, System.EventArgs e)
{
Label1.BorderColor = System.Drawing.Color.HotPink;
}
protected void Button2_Click(object sender, System.EventArgs e)
{
Label1.BorderColor = System.Drawing.Color.SpringGreen;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to set, change Label border color programmatically</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Navy”>Label Example: BorderColor</h2>
<asp:Label
ID=“Label1″
runat=“server”
Text=“Click any button for change border color.”
BorderWidth=“2″
>
</asp:Label>
<br /><br />
<asp:Button
ID=“Button1″
runat=“server”
ForeColor=“SlateBlue”
Text=“BorderColor HotPink”
OnClick=“Button1_Click”
Font-Bold=“true”
/>
<asp:Button
ID=“Button2″
runat=“server”
Font-Bold=“true”
ForeColor=“SlateBlue”
Text=“BorderColor SpringGreen”
OnClick=“Button2_Click”
/>
</div>
</form>
</body>
</html>

How to use Associated control Id in ASP.NET Label

How to use Associated control Id in ASP.NET Label

<%@ Page Language=“C#” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to use associated control id (AssociatedControlID) in Label</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Navy”>Label Example: AssociatedControlID</h2>
<asp:Label
ID=“Label1″
runat=“server”
ForeColor=“CadetBlue”
Text=“<u>U</u>ser Name”
ToolTip=“Color label”
AccessKey=“U”
AssociatedControlID=“TextBox1″
>
</asp:Label>
<asp:TextBox
ID=“TextBox1″
runat=“server”
BackColor=“SeaGreen”
ForeColor=“AliceBlue”
>
</asp:TextBox>
</div>
</form>
</body>
</html>

How to use tool tip (ToolTip) in ASP.Net Label

<%@ Page Language=“C#” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to use tool tip (ToolTip) in Label</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Navy”>Label Example: ToolTip</h2>
<asp:Label
ID=“Label1″
runat=“server”
ForeColor=“OrangeRed”
BackColor=“LightCyan”
Font-Size=“X-Large”
Text=“DodgerBlue”
ToolTip=“Color label”
>
</asp:Label>
<br /><br />
<asp:Label
ID=“Label2″
runat=“server”
ForeColor=“Snow”
BackColor=“DarkCyan”
Font-Size=“X-Large”
Text=“XmlDataSource”
ToolTip=“asp.net control”
>
</asp:Label>
</div>
</form>
</body>
</html>

How to use theme and skin in ASP.NET Label

How to use theme and skin in ASP.NET Label

<%@ Page Language=“C#” Theme=“Blue” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to use theme and skin in Label</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Red”>Label Example: Theme</h2>
<asp:Label
ID=“Label1″
runat=“server”
Text=“This Label using theme.”
BackColor=“DarkGreen”
ForeColor=“FloralWhite”
Font-Size=“X-Large”
Font-Italic=“true”
BorderColor=“LawnGreen”
BorderWidth=“2″
>
</asp:Label>
</div>
</form>
</body>
</html>

How to hide visible ASP.NET CheckBox Programmatically

How to hide visible ASP.NET CheckBox Programmatically

<%@ Page Language=“C#” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
protected void Button1_Click(object sender, System.EventArgs e)
{
CheckBox1.Visible = false;
Label1.Text = “CheckBox Hide.”;
}
protected void Button2_Click(object sender, System.EventArgs e)
{
CheckBox1.Visible = true;
Label1.Text = “CheckBox Visible.”;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to hide, visible CheckBox programmatically</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Green”>asp.net CheckBox example: Hide, Visible</h2>
<asp:Label
ID=“Label1″
runat=“server”
Font-Size=“Large”
ForeColor=“Violet”
>
</asp:Label>
<br /><br />
<asp:CheckBox
ID=“CheckBox1″
runat=“server”
Text=“Check The CheckBox.”
AutoPostBack=“false”
ForeColor=“Tomato”
/>
<br /><br />
<asp:Button
ID=“Button1″
runat=“server”
ForeColor=“Violet”
Text=“Hide CheckBox”
OnClick=“Button1_Click”
Font-Bold=“true”
/>
<asp:Button
ID=“Button2″
runat=“server”
Font-Bold=“true”
ForeColor=“Violet”
Text=“Visible CheckBox”
OnClick=“Button2_Click”
/>
</div>
</form>
</body>
</html>

How to use DropDownList AutoPostBack in ASP.NET c#

How to use DropDownList AutoPostBack in ASP.NET c#

<%@ Page Language=“C#” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
protected void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
{
Label1.Text = “You Selected: “ + DropDownList1.SelectedItem.Text;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to use DropDownList AutoPostBack feature</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Navy”>DropDownList: AutoPostBack</h2>
<asp:Label
ID=“Label1″
runat=“server”
Font-Bold=“true”
ForeColor=“Purple”
Font-Size=“Large”
>
</asp:Label>
<br /><br />
<asp:Label
ID=“Label2″
runat=“server”
Font-Bold=“true”
ForeColor=“OrangeRed”
Text=“asp.net controls”
>
</asp:Label>
<asp:DropDownList
ID=“DropDownList1″
runat=“server”
AutoPostBack=“true”
OnSelectedIndexChanged=“DropDownList1_SelectedIndexChanged”
>
<asp:ListItem>HyperLink</asp:ListItem>
<asp:ListItem>PasswordRecovery</asp:ListItem>
<asp:ListItem>PlaceHolder</asp:ListItem>
<asp:ListItem>LoginName</asp:ListItem>
<asp:ListItem>Label</asp:ListItem>
</asp:DropDownList>
</div>
</form>
</body>
</html>

How to use theme and skin in ASP.NET DropDownList

How to use theme and skin in ASP.NET DropDownList

<%@ Page Language=“C#” Theme=“Red” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>How to use theme and skin in DropDownList</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:Green”>DropDownList: Using Theme</h2>
<asp:Label
ID=“Label1″
runat=“server”
Font-Bold=“true”
ForeColor=“DarkBlue”
Text=“Color List”
>
</asp:Label>
<asp:DropDownList
ID=“DropDownList1″
runat=“server”
>
<asp:ListItem>DarkGrey</asp:ListItem>
<asp:ListItem>DarkKhaki</asp:ListItem>
<asp:ListItem>DarkSlateGray</asp:ListItem>
<asp:ListItem>DarkTurquoise</asp:ListItem>
<asp:ListItem>DarkSlateBlue</asp:ListItem>
</asp:DropDownList>
</div>
</form>
</body>
</html>

CollapsiblePanelExtender ImageControlID in ASP.NET Ajax

Ajax Collapsible Panel Extender – How to set change Image Control ID programmatically in Collapsible Panel Extender

<%@ Page Language=“C#” AutoEventWireup=“true” %>
<%@ Register Assembly=“AjaxControlToolkit” Namespace=“AjaxControlToolkit” TagPrefix=“cc1″ %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
protected void Page_Load(object sender, EventArgs e)
{
CollapsiblePanelExtender1.ImageControlID = “Image1″;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml” >
<head id=“Head1″ runat=“server”>
<title>Ajax CollapsiblePanelExtender - How to set change ImageControlID programmatically in CollapsiblePanelExtender</title>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:SteelBlue; font-style:italic;”>
Ajax CollapsiblePanelExtender - How to set change
<br /> ImageControlID programmatically in
<br /> CollapsiblePanelExtender in asp.net
</h2>
<hr width=“500″ align=“left” color=“DarkTurquoise” />
<asp:ScriptManager
ID=“ScriptManager1″
runat=“server”
>
</asp:ScriptManager>
<cc1:CollapsiblePanelExtender
ID=“CollapsiblePanelExtender1″
runat=“server”
TargetControlID=“Panel2″
ExpandControlID=“Panel1″
CollapseControlID=“Panel1″
Collapsed=“true”
ExpandedImage=“~/Image/Expand.gif”
CollapsedImage=“~/Image/Collapse.gif”
>
</cc1:CollapsiblePanelExtender>
<asp:Image ID=“Image1″ runat=“server” />
<br />
<asp:Panel
ID=“Panel1″
runat=“server”
Width=“125″
BackColor=“Orchid”
BorderColor=“MediumOrchid”
BorderWidth=“2″
HorizontalAlign=“Center”
BorderStyle=“Solid”
>
<asp:Image
ID=“Image2″
runat=“server”
ImageUrl=“~/Image/Hippopotamus.jpg”
Height=“75″
/>
</asp:Panel>
<asp:Panel
ID=“Panel2″
runat=“server”
Width=“550″
BorderColor=“Purple”
BorderWidth=“2″
BackColor=“MediumPurple”
HorizontalAlign=“Center”
>
<asp:Image
ID=“Image3″
runat=“server”
ImageUrl=“~/Image/Hippopotamus.jpg”
Height=“325″
/>
</asp:Panel>
</div>
</form>
</body>
</html>

How to use Rating OnChanged event in asp.net ajax

Ajax Rating – How to use OnChanged event in asp.net Rating

<%@ Page Language=“C#” AutoEventWireup=“true” %>
<%@ Register Assembly=“AjaxControlToolkit” Namespace=“AjaxControlToolkit” TagPrefix=“asp” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<script runat=“server”>
protected void Rating1_Changed(object sender, EventArgs e)
{
int ratingValue = Rating1.CurrentRating;
if (ratingValue <= 3)
{
Label1.ForeColor = System.Drawing.Color.Red;
}
else
{
Label1.ForeColor = System.Drawing.Color.Green;
}
Label1.Text = “You Rated: “ + ratingValue;
}
</script>
<html xmlns=“http://www.w3.org/1999/xhtml”>
<head id=“Head1″ runat=“server”>
<title>Ajax Rating - How to use OnChanged event in asp.net Rating</title>
<style type=“text/css”>
.StarCss {
background-image: url(/Image/star.png);
height:24px;
width:24px;
}
.FilledStarCss {
background-image: url(/Image/filledstar.png);
height:24px;
width:24px;
}
.EmptyStarCss {
background-image: url(/Image/star.png);
height:24px;
width:24px;
}
.WaitingStarCss {
background-image: url(/Image/waitingstar.png);
height:24px;
width:24px;
}
</style>
</head>
<body>
<form id=“form1″ runat=“server”>
<div>
<h2 style=“color:DarkBlue; font-style:italic;”>
ASP.NET Ajax Rating - How to use OnChanged
<br /> event in asp.net Rating
</h2>
<hr width=“500″ align=“left” color=“LightBlue” />
<asp:ToolkitScriptManager ID=“ToolkitScriptManager1″ runat=“server”>
</asp:ToolkitScriptManager>
<table border=“0″ cellpadding=“4″ cellspacing=“4″>
<tr>
<td>
<asp:Image
ID=“Image1″
runat=“server”
ImageUrl=“~/Image/RedBird.jpg”
Height=“250″
/>
</td>
<td>
<asp:Label
ID=“Label1″
runat=“server”
Font-Size=“X-Large”
Font-Italic=“true”
Font-Names=“Comic Sans MS”
>
</asp:Label>
<br /><br />
<asp:Label
ID=“Label2″
runat=“server”
ForeColor=“SandyBrown”
Font-Size=“Large”
Text=“Rate this image”
>
</asp:Label>
<br />
<asp:Rating
ID=“Rating1″
runat=“server”
StarCssClass=“StarCss”
FilledStarCssClass=“FilledStarCss”
EmptyStarCssClass=“EmptyStarCss”
WaitingStarCssClass=“WaitingStarCss”
AutoPostBack=“true”
OnChanged=“Rating1_Changed”
>
</asp:Rating>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>