Sometime
it is needed to crop the uploaded in
asp.net web application. This can be done by using jquery. In this article I
will explain how to validate image type(extension) , upload image through asp.net fileupload control and then crop the
image using jQuery plugin and save cropped image to folder.
Saturday, 28 February 2015
Posted by Unknown on 03:15
with No comments so far
This
is mostly required in our application to hide content on the basis of some
condition i.e. on radiobutton list or check box. I have explained the example
of check box in my previous article.
In this article I will explain
how to Show & Hide controls or DIV
on RadioButtonList selection in asp.net using jQuery.
Example: In this example user has to select the Nationality i.e.
Indian or Others. If user selects the option of “others”, then user has to enter
details like country and city. No information is needed in case of “Indian”
option. So in case of “Others” we can make the textbioxes to enter Country name
and city name to appear and disappear at run time by placing them in DIV tag
and using jQuery we can hide or unhide the DIV according to the RadioButtonList selected item.
Source Code:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script src="//code.jquery.com/jquery-1.11.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#<%=rblPaymentMode.ClientID
%>').click(function () {
var
SelectedValue = $('#<%=rblPaymentMode.ClientID %>
input[type=radio]:checked').val();
if
(SelectedValue == 1) {
//If
cash is selected then hide the Div
$('#dvShowHide').css("display", "none");
//or
you can simply use jQuery hide method to hide the Div as below:
//$('#dvShowHide').hide();
}
else
{
//If
Cheque is selected then show the Div
$('#dvShowHide').css("display", "block");
//or
you can simply use jQuery show method to show the Div as below:
//$('#dvShowHide').show();
//Clear
textboxes
$('#<%=txtBankName.ClientID
%>').val('');
$('#<%=txtChequeNumber.ClientID
%>').val('');
//Set
focus in bank name textbox
$('#<%=txtBankName.ClientID
%>').focus();
}
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<fieldset style="width: 370px;">
<legend><strong>Show/Hide
Div Content On RadioButton Check</strong></legend>
<br />
<strong>Nationality</strong>
<br />
<br />
<asp:RadioButtonList ID="rblPaymentMode" runat="server" RepeatDirection="Horizontal">
<asp:ListItem Text="Indian" Value="1"></asp:ListItem>
<asp:ListItem Text="Others" Value="2"></asp:ListItem>
</asp:RadioButtonList>
<br />
<div id="dvShowHide" style="display:none;">
Country :
<asp:TextBox ID="txtBankName"
runat="server"></asp:TextBox><br />
City: <asp:TextBox ID="txtChequeNumber"
runat="server"></asp:TextBox>
</div>
</fieldset>
</div>
</form>
</body>
</html>
Friday, 27 February 2015
Posted by Unknown on 23:00
with No comments so far
One of
the common requirement while working on asp.net projects is to show, hide the
contents or controls placed inside Div on CheckBox select/unselect. This can be
done through code in asp.net or by using jQuery. jQuery option is easy and
better, because jQuery is fast as compare to .NET server side code.
Posted by Unknown on 22:59
with No comments so far
One of the common requirement while working on asp.net projects is to show, hide the contents or controls placed inside Div on CheckBox select/unselect. This can be done through code in asp.net or by using jQuery. jQuery option is easy and better, because jQuery is fast as compare to .NET server side code.
Posted by Unknown on 22:56
with No comments so far
One of
the common requirement while working on asp.net projects is to show, hide the
contents or controls placed inside Div on CheckBox select/unselect. This can be
done through code in asp.net or by using jQuery. jQuery option is easy and
better, because jQuery is fast as compare to .NET server side code.
Posted by Unknown on 04:13
with No comments so far
When we work work with dropdownlist
its sometime required to get
dropdownlist value, text or index at webpage. This can be done by doing some
code at server side. For that we have dropdownlist attributes like
"SelectedIndex" to get the selected item’s index,
"SelectedValue" to get the selected item’s value and
"SelectedItem.Text" to get selected item’s text. But to avoid code we
can also do this job at client end by using jQuery.
Posted by Unknown on 03:03
with No comments so far
We can validate and save data in database using jQuery, Ajax and Web-service method. jQuery ajax allows us to call server side ASP.NET page methods/functions declared as Web Method from client side without any postback. We make ajax call to web method using jQuery which contains the code to insert data in sql server.
In this article I am going to explain how to
validate and save data into SQL SERVER database table in
asp.net without any post back
(asynchronously) using jQuery AJAX JSON and WebMethod.
Description:
Implementation: Let’s create a sample page to demonstrate the concept.
Create a datanbase in sql server eg. “test”. Now create a table as given below:
CREATE TABLE [dbo].[Emp_Personal](
[EmpPer_Id] [int] IDENTITY(1,1) NOT NULL,
[EmpName] [varchar](100) NULL,
[Age] [int] NULL,
[Address] [varchar](500) NULL
) ON
[PRIMARY]
In
Web.config file create the connection string as:
<connectionStrings>
<add name="EmpCon" connectionString="Data Source=localhost;Initial Catalog=test;Integrated
Security=True"/>
</connectionStrings>
Now create a stored procedure to save Employee Personal Details
Create PROCEDURE [dbo].[SaveEmp_SP]
@EmpName VARCHAR(100),
@age INT,
@Address VARCHAR(500)
AS
BEGIN
INSERT
INTO dbo.Emp_Personal(EmpName,Age,Address)
VALUES(@EmpName,@age,@Address)
END
Source Code:
Design Section:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script
src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script
type="text/javascript">
function
SaveRecord() {
//Get
control's values
var
Name = $.trim($('#<%=txtName.ClientID %>').val());
var age =
$.trim($('#<%=txtAge.ClientID %>').val());
var
Address = $.trim($('#<%=txtAddress.ClientID %>').val());
var
msg = "";
//check
for validation
if
(Name == '') {
msg += "<li>Please
enter Employee name</li>";
}
if
(age == '') {
msg += "<li>Please
enter Age</li>";
}
if
(Address == 0) {
msg += "<li>Please
enter address</li>";
}
if
(msg.length == 0) {
//Jquery
ajax call to server side method
$.ajax({
type: "POST",
dataType: "json",
contentType: "application/json; charset=utf-8",
//Url
is the path of our web method (Page name/function name)
url: "MyPageName.aspx/SaveBookDetails",
//Pass
paramenters to the server side function
data: "{'EmpName':'" +Name+ "', 'Age':'" +age+ "','Address':'" +Address+ "'}",
success: function (response) {
//Success or failure message e.g. Record saved or not saved
successfully
if (response.d == true) {
//Set message
$('#dvResult').text("Record
saved successfully");
//Reset controls
$('#txtName').val('');
$('#txtAge').val('');
$('#txtAddress').val("0");
}
else {
$('#dvResult').text("Record
could't be saved");
}
//Fade Out to disappear message after 6 seconds
$('#dvResult').fadeOut(6000);
},
error: function (xhr, textStatus, error) {
//Show error message(if occured)
$('#dvResult').text("Error:
" + error);
}
});
}
else
{
//Validation
failure message
$('#dvResult').html('');
$('#dvResult').html(msg);
}
$('#dvResult').fadeIn();
}
</script>
</head>
<body>
<form
id="form1"
runat="server">
<div>
<table>
<tr>
<td>Employee Name:</td>
<td>
<asp:TextBox ID="txtName" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>Age:</td>
<td>
<asp:TextBox ID="txtAge" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>Address:</td>
<td>
<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td></td>
<td>
<button type="submit"
onclick="SaveRecord();return
false">Submit</button>
</td>
</tr>
<tr>
<td></td>
<td>
<div id="dvResult"></div>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
Asp.Net C# Code to validate and store data in sql server database table using jQuery Ajax
using System;
using
System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Data;
using
System.Data.SqlClient;
using
System.Configuration;
using System.Web.Services;
public partial class Jquery_Insert : System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
}
[WebMethod]
public static
bool SaveEmpDetails(string
Name, string age, Int32
Address)
{
bool
status;
using (SqlConnection con = new
SqlConnection(ConfigurationManager.ConnectionStrings["Empcon"].ConnectionString))
{
using
(SqlCommand cmd = new
SqlCommand("SaveEmp_SP",
con))
{
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@EmpName",Name);
cmd.Parameters.AddWithValue("@age", age);
cmd.Parameters.AddWithValue("@Address", Address);
if
(con.State == ConnectionState.Closed)
{
con.Open();
}
Int32
retVal = cmd.ExecuteNonQuery();
if
(retVal > 0)
{
status = true;
}
else
{
status = false;
}
return
status;
}
}
}
}
Asp.Net VB Code to validate
and store data in sql server
database table using jQuery Ajax
Imports System.Data
Imports
System.Data.SqlClient
Imports
System.Configuration
Imports
System.Web.Services
Partial Public Class Jquery_Insert
Inherits System.Web.UI.Page
Protected Sub
Page_Load(ByVal sender As
Object, ByVal e
As EventArgs)
End Sub
<WebMethod()> _
Public Shared
Function SaveEmpDetails(ByVal Name As String, ByVal age As String, ByVal Address As Int32) As Boolean
Dim
status As Boolean
Imports
(SqlConnection con = New
SqlConnection(ConfigurationManager.ConnectionStrings("Empcon").ConnectionString))
{
Imports
(SqlCommand cmd = New
SqlCommand("SaveEmp_SP", con))
{
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.AddWithValue("@EmpName", Name)
cmd.Parameters.AddWithValue("@age", age)
cmd.Parameters.AddWithValue("@Address", Address)
If
con.State = ConnectionState.Closed Then
con.Open()
End If
Dim
retVal As Int32
= cmd.ExecuteNonQuery()
If
retVal > 0 Then
status = True
Else
status = False
End If
Return
status
}
}
End Function
End Class
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