<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.divPage
{
width:300px;
height:200px;
}
</style>
<script src="Scripts/jquery-1.3.2.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#LoadPage').load('Default.aspx');
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<div id="LoadPage" class="divPage">
</div>
</div>
</form>
</body>
</html>
Employee emp = new Employee();
if (emp.GetType().IsSerializable)
{
Response.Write(emp.GetType().ToString() + " can probably be serialized");
}
else
{
Response.Write(emp.GetType().ToString() + " cannot be serialized");
}
Dim emp As New Employee()
If emp.GetType().IsSerializable Then
Response.Write(emp.GetType().ToString() & " can probably be serialized")
Else
Response.Write(emp.GetType().ToString() & " cannot be serialized")
End If
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Drop on Hover</title>
<script type="text/javascript">
function DropList() {
var n = document.getElementById("sel").options.length;
document.getElementById("sel").size = n;
}
</script>
</head>
<body>
<div>
<select id="sel" onmouseover="DropList()" onmouseout="this.size=1;">
<option>One</option>
<option>Two</option>
<option>Three</option>
<option>Four</option>
<option>Five</option>
<option>Six</option>
<option>Seven</option>
<option>Eight</option>
</select>
</div>
</body>
</html>
See a Live Demo.
On Mouse Hover
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.calFixIE *
{
padding:0px;
margin:0px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<cc1:CalendarExtender ID="CalendarExtender1" TargetControlID="TextBox1"
Format="dd/MM/yyyy" runat="server">
</cc1:CalendarExtender>
</div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
string str = "Are;You;A;Regular;Visitor;;DevCurry.com;?";
Regex.Split(str, ";", RegexOptions.ExplicitCapture)
.Where(s => !String.IsNullOrEmpty(s))
.ToList()
.ForEach(s => Response.Write(s+"\n"));
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim str As String = "Are;You;A;Regular;Visitor;;DevCurry.com;?"
Regex.Split(str, ";", RegexOptions.ExplicitCapture).Where(Function(s) (Not String.IsNullOrEmpty(s))).ToList().ForEach(Function(s) Response.Write(s + Constants.vbLf))
End Sub
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.3.2.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#<%=RadioButtonList1.ClientID %>").hide('slow');
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:RadioButtonList ID="RadioButtonList1" runat="server">
<asp:ListItem Value="Ten"></asp:ListItem>
<asp:ListItem Value="Twenty"></asp:ListItem>
<asp:ListItem Value="Thirty"></asp:ListItem>
<asp:ListItem Value="Forty"></asp:ListItem>
</asp:RadioButtonList>
protected void Page_Load(object sender, EventArgs e)
{
Page.ClientScript.RegisterClientScriptInclude("onlyone", ResolveUrl(@"Scripts\SomeScript.js"));
if (!Master.Page.ClientScript.IsStartupScriptRegistered("MS"))
{
Master.Page.ClientScript.RegisterStartupScript
(this.GetType(), "MS", "SomeMethodJS();", true);
}
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Page.ClientScript.RegisterClientScriptInclude("onlyone", ResolveUrl("Scripts\SomeScript.js"))
If (Not Master.Page.ClientScript.IsStartupScriptRegistered("MS")) Then
Master.Page.ClientScript.RegisterStartupScript(Me.GetType(), "MS", "SomeMethodJS();", True)
End If
End Sub
<globalization culture="en-GB" uiCulture="en-GB" />
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestArea6.aspx.cs"
Inherits="TestArea6" Culture="en-GB" %>
protected void Page_Load(object sender, EventArgs e)
{
decimal revenue = 1452.66m;
string str = String.Format("{0:C}", revenue);
Response.Write(str);
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim revenue As Decimal = 1452.66D
Dim str As String = String.Format("{0:C}", revenue)
Response.Write(str)
End Sub
The RowDataBound event is raised when a data row (represented by a GridViewRow object) is bound to data in the GridView control. This enables you to provide an event-handling method that performs a custom routine, such as modifying the values of the data bound to the row, whenever this event occurs.
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
SelectCommand="SELECT [CustomerID], [CompanyName], [ContactName], [Address], [City] FROM [Customers]">
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="CustomerID"
DataSourceID="SqlDataSource1" AllowPaging="True" AllowSorting="True"
OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="CustomerID" HeaderText="CustomerID" ReadOnly="True" SortExpression="CustomerID" />
<asp:BoundField DataField="CompanyName" HeaderText="CompanyName" SortExpression="CompanyName" />
<asp:BoundField DataField="ContactName" HeaderText="ContactName" SortExpression="ContactName" />
<asp:BoundField DataField="Address" HeaderText="Address" SortExpression="Address" />
<asp:BoundField DataField="City" HeaderText="City" SortExpression="City" />
</Columns>
</asp:GridView>
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if ( e.Row.RowType == DataControlRowType.DataRow )
{
e.Row.Attributes.Add("onmouseover", "alert('Display some message');");
}
}
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
If e.Row.RowType = DataControlRowType.DataRow Then
e.Row.Attributes.Add("onmouseover", "alert('Display some message');")
End If
End Sub
I have seen users writing number of lines of code to do a simple thing as binding an Enumeration to an ASP.NET DropDownList or ListBox. Here's how to do this with just two lines of code
<asp:DropDownList ID="DropDownList1" runat="server">
</asp:DropDownList>
<asp:ListBox ID="ListBox1" runat="server"></asp:ListBox>
C#
enum Speed
{
Low = 1,
Medium = 2,
High = 3
}
protected void Page_Load(object sender, EventArgs e)
{
DropDownList1.DataSource = Enum.GetValues(typeof(Speed));
DropDownList1.DataBind();
ListBox1.DataSource = Enum.GetValues(typeof(Speed));
ListBox1.DataBind();
}
VB.NET
Friend Enum Speed
Low = 1
Medium = 2
High = 3
End Enum
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
DropDownList1.DataSource = System.Enum.GetValues(GetType(Speed))
DropDownList1.DataBind()
ListBox1.DataSource = System.Enum.GetValues(GetType(Speed))
ListBox1.DataBind()
End Sub
OUTPUT
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Create TextBoxes" onclick="Button1_Click" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
protected void Button1_Click(object sender, EventArgs e)
{
int cnt = 0;
if (ViewState["txtBoxes"] != null)
cnt = (int)ViewState["txtBoxes"];
cnt = cnt + 1;
ViewState["txtBoxes"] = cnt;
for (int i = 0; i < cnt; i++)
{
TextBox tb = new TextBox();
tb.Text = "";
tb.ID = "TextBox" + cnt;
UpdatePanel1.ContentTemplateContainer.Controls.Add(tb);
}
}
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim cnt As Integer = 0
If ViewState("txtBoxes") IsNot Nothing Then
cnt = CInt(Fix(ViewState("txtBoxes")))
End If
cnt = cnt + 1
ViewState("txtBoxes") = cnt
For i As Integer = 0 To cnt - 1
Dim tb As New TextBox()
tb.Text = ""
tb.ID = "TextBox" & cnt
UpdatePanel1.ContentTemplateContainer.Controls.Add(tb)
Next i
End Sub
DateTime dt = DateTime.Now;
DateTime wkStDt = DateTime.MinValue;
DateTime wkEndDt = DateTime.MinValue;
wkStDt = dt.AddDays(1 - Convert.ToDouble(dt.DayOfWeek));
wkEndDt = dt.AddDays(7 - Convert.ToDouble(dt.DayOfWeek));
Response.Write(wkStDt.ToString("MMMM-dd") + "<br/>");
Response.Write(wkEndDt.ToString("MMMM-dd"));
Dim dt As DateTime = DateTime.Now
Dim wkStDt As DateTime = DateTime.MinValue
Dim wkEndDt As DateTime = DateTime.MinValue
wkStDt = dt.AddDays(1 - Convert.ToDouble(dt.DayOfWeek))
wkEndDt = dt.AddDays(7 - Convert.ToDouble(dt.DayOfWeek))
Response.Write(wkStDt.ToString("MMMM-dd") & "<br/>")
Response.Write(wkEndDt.ToString("MMMM-dd"))
<appSettings>
<add key="someurl" value="http://www.dotnetcurry.com" />
</appSettings>
<asp:HyperLink ID="HyperLink1" runat="server"
NavigateUrl="<%$ Appsettings:someurl %>" Text="Click Here">
</asp:HyperLink>
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataKeyNames="CustomerID"
DataSourceID="SqlDataSource1" AllowPaging="True" AllowSorting="True">
<Columns>
<asp:BoundField DataField="SomeDate" DataFormatString="{0:MM-dd-yyyy}"
HtmlEncode="false" HeaderText="SomeDate" />
...
</Columns>
</asp:GridView>
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataKeyNames="CustomerID"
DataSourceID="SqlDataSource1" AllowPaging="True" AllowSorting="True">
<Columns>
<asp:TemplateField HeaderText="SomeDate" >
<EditItemTemplate>
<asp:Label ID="lblDate" runat="server" Text='<%# Eval("SomeDate", "{0:MM-dd-yyyy}") %>'
</asp:Label>
</EditItemTemplate>
...
</Columns>
</asp:GridView>
void Main()
{
List<string> list = new List<string>() { "Jack", "And", "Jill", "Went", "Up", "The", "Hill" };
var first = list.FirstOrDefault();
Console.WriteLine(first);
}
Private Sub Main()
Dim list As New List(Of String)(New String() {"Jack", "And", "Jill", "Went", "Up", "The", "Hill"})
Dim first = list.FirstOrDefault()
Console.WriteLine(first)
End Sub
protected void Page_Load(object sender, EventArgs e)
{
if (HttpContext.Current.Request.IsLocal)
{
Response.Write("App is local");
}
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
If HttpContext.Current.Request.IsLocal Then
Response.Write("App is local")
End If
End Sub
<EmptyDataTemplate>
<asp:Image id="imgNoData"
ImageUrl="~/images/NoDataFound.jpg"
AlternateText="No data found"
runat="server"/>
</EmptyDataTemplate>
A user asked me recently on the forums if it was possible to Submit an HTML form without the Submit button. She wanted to do it using a Hyperlink instead.
Well it is possible to submit the form using a hyperlink with a small amount of JavaScript code as shown here:
<html xmlns="http://www.w3.org/1999/xhtml">That’s all you need!
<head>
<title>Submit A HTML Form using a Hyperlink</title>
<script type="text/javascript">
function frmSubmit() {
document.form1.submit();
}
</script>
</head>
<body>
<form name="form1" method="post" action="somescript.pl" >
<div>
<a href="javascript:frmSubmit();">Submit</a>
</div>
</form>
</body>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
div.Outer {
width: 350px;
border:dashed 1px black;
position: relative;
clear: both;
}
div.InnerLeft {
width: 50%;
position: relative;
background: #CCCCCC;
float: left;
}
div.InnerRight {
width: 49%;
position: relative;
background: #AAAAFF;
float: right;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div class="Outer">
<div class="InnerLeft">
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
</div>
<div class="InnerRight">
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
Lorem Ipsum Lorem Ipsum Lorem Ipsum
</div>
</div>
</form>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function CallMe() {
alert('Hi');
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
Label1.Attributes.Add("onClick", "CallMe();");
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Label1.Attributes.Add("onClick", "CallMe();")
End Sub
