Saturday, July 15, 2017

Part 42 - How to implement JQuery Autocomplete Textbox with data from server in Asp.net MVC application


In this video you will be able to implement JQuery-UI Autocomplete Textbox with data from server side. Autocomplete feature used to display suggestion while we type into textbox. 
For implementing this, you need to download latest version of Jquery UI . Click here to download the latest version of Jquery-UI. 
The latest version will only be compatible with higher version of Jquery i.e.  Jquery 1.7+ .
After downloading the latest version, add the .css , .js file and images into your project. In case if you find any problem the follow the  steps as shown in the above video.

#Controller Code
Add a controller named "Test" and replace everything with below code. In below code, you will find three methods
a) Index () : This method will return view.
b) GetSuggestion(string text) : This method will return the JSON list of items matching with the parameter value.

using MVCTutorial.Models;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading;
using System.Web;
using System.Web.Mvc;

namespace MVCTutorial.Controllers
{

    public class TestController : Controller
    {

        public ActionResult Index()
        {
            return View();
        }


        [HttpGet]
        public JsonResult GetSuggestion(string text)
        {
            List<MyShop> ItemList = new List<MyShop>();

            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Rice", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "Pulse", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 3, ItemName = "Salt", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 4, ItemName = "Sugar", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 5, ItemName = "Soap", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 6, ItemName = "Book", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Apple", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "Aeroplane", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Orange", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "Boy", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Blackberry", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "Lewis", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Women", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "C++", IsAvailable = false });


            List<string> list = new List<string>();

            list = ItemList.Where(x => x.ItemName.ToLower().Contains(text.ToLower())).Select(x => x.ItemName).ToList();


            return Json(list, JsonRequestBehavior.AllowGet);
        }



    }
}
  

 # View Page (Index.cshtml)

Right click on your controller' s Index method and add a view. After adding view, replace content with below code.  

@model MVCTutorial.Models.EmployeeViewModel
@{
    ViewBag.Title = "Index";
    // Layout = null;
}

<div class="panel panel-body" style="min-height:256px">


    <div class="col-md-9">
        <h4>Technotips MVC tutorial</h4>
              
        <input type="text" class="form-control" id="textAutocomplete" />

    </div>

</div>

<script>

    //var autoSuggestionArray = ["Ashish", "Apple", "Orange", "Boy", "Girl"]

    $("#textAutocomplete").autocomplete({

        source: function (request, response) {
            var text = $("#textAutocomplete").val();

            $.ajax({
                type: "GET",
                url: "/Test/GetSuggestion",
                data: { text: request.term },
                success: function (data) {

                    response($.map(data, function (item) {

                        return { lable: item, value: item }

                    }))


                }

            })

        }
    });


All Code Factory

By at 2 comments:
Labels: , , ,

Part 41 - How to create responsive sortable image gallery using Jquery-UI



In this video you will be able to create responsive sortable photo gallery. for that you need to download latest version of Jquery UI . Click here to download the latest version of Jquery-UI. 
The latest version will only be compatible with higher version of Jquery i.e.  Jquery 1.7+ .
After downloading the latest version, add the .css , .js file and images into your project. In case if you find any problem the follow the  steps as shown in the above video. The expected output will be as what displayed in following image. 
Our main objective is that, we have to sort the sequence of the below image by dragging and dropping method. For that we can use the .sortable() method offered by JQuery-UI 



 # View Page (Index.cshtml)

Right click on your controller' s Index method and add a view. After adding view, replace content with below code.  
Please follow below points: 
1. Please take an equal size of images or else you can set equal height and width for all images. 
2. Make sure to replace below images with your images.
3. Don't forget to give reference of JQuery-UI  .jss , .css file reference into your layout page

 
<div class="panel panel-body" style="min-height:256px">
  
    <div class="col-md-9">
        <h4>Technotips MVC tutorial</h4>

        <ul class="list-group" id="SortableGallery" style="cursor:move">
            <li class="list-group-item col-md-4" >
                <div>
                    <img class="img-responsive" src="~/Content/images/vocal.jpg" />
                </div>
            </li>
            <li class="list-group-item col-md-4">
                <div>
                    <img class="img-responsive" src="~/Content/images/voiline.jpg" />
                </div>
            </li>
          
            <li class="list-group-item col-md-4">
                <div>
                    <img class="img-responsive" src="~/Content/images/tabla.jpg" />
                </div>
            </li>
            <li class="list-group-item col-md-4">
                <div>
                    <img class="img-responsive" src="~/Content/images/social.jpg" />
                </div>
            </li>
            <li class="list-group-item col-md-4">
                <div>
                    <img class="img-responsive" src="~/Content/images/onlinebookstore.jpg" />
                </div>
            </li>
            <li class="list-group-item col-md-4">
                <div>
                    <img class="img-responsive" src="~/Content/images/mobile.jpg" />
                </div>
            </li>
        </ul>

    </div>

</div>

<script>

    $("#SortableGallery").sortable({

        update: function () {

            alert("Wow");
        }
    });

</script>


All Code Factory

By at No comments:
Labels: , , ,

Part 40 - How to send multiple checkbox Ids to controller using Jquery in Asp.net MVC




In this video you will be able to display multiple checkbox on view page with checked and unchecked value. Then will be able to send the ID's of checked checkbox to the controller with the help of ajax call.  So, the expected View would be like what shown in below image. 


#Controller Code

Add a controller named "Test" and replace everything with below code. In below code, you will find three methods
a) Index () : This method will return view with data in  ViewBag.ItemList  consisting all Items in the shop.
b) SaveItems(string ItemIds) : This method will be called by ajax and it receive the Ids of checkboxes as a comma separated  string. 

using MVCTutorial.Models;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading;
using System.Web;
using System.Web.Mvc;

namespace MVCTutorial.Controllers
{

    public class TestController : Controller
    {

        public ActionResult Index()
        {
            MVCTutorialEntities db = new MVCTutorialEntities();
           
            List<MyShop> ItemList = new List<MyShop>();
            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Rice", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "Pulse", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 3, ItemName = "Chocholate", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 4, ItemName = "Soap", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 5, ItemName = "Tea", IsAvailable = true });

            ViewBag.ItemList = ItemList;

            return View();
        }
        [HttpPost]
        public JsonResult SaveItems(string ItemIds)
        {
            string[] arrayIds = ItemIds.Split(',');

            foreach (string item in arrayIds)
            {
                var id = item;

            }
            return Json("", JsonRequestBehavior.AllowGet);
        }

    }
}
  
#Model code (EmployeeViewModel)

Right click on your model folder and add a class. Then give a name "MyShop" and click ok button. Replace content with below code, 

 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace MVCTutorial.Models
{
    public class MyShop
    {
        public int ItemID { get; set; }
        public string ItemName { get; set; }
        public bool IsAvailable { get; set; }

    }
}

 # View Page (Index.cshtml)

Right click on your controller' s Index method and add a view. After adding view, replace content with below code.

 
<div class="panel panel-body" style="min-height:256px">

<div class="col-md-9">
        <div class="col-md-5">
            <img src="~/Content/loading.gif" id="loader" height="20" width="20" style="display:none" />

            <ul class="list-group" id="ItemList">
                @if (ViewBag.ItemList != null)
                {
                    <li class="list-group-item list-group-item-heading active">
                        <h4 class="list-group-item-text">Available Items in my store</h4>

                    </li>
                    foreach (var item in ViewBag.ItemList)
                    {
                        <li class="list-group-item">

                            <div class="checkbox">
                                <input id="item_@item.ItemID" type="checkbox" checked="@item.IsAvailable" />
                                <label for="item_@item.ItemID">@item.ItemName</label>
                            </div>


                        </li>

                    }
                    <li class="list-group-item"><a href="#" class="btn btn-block btn-success" onclick="SaveItems()">Save Item</a></li>

                }

            </ul>
        </div>
    </div>

</div>

<script>

    var SaveItems = function () {
        //$("#loader").show();
        var ItemIdArray = [];
        var ItemsIdsCommaSeparated = "";
        $("#ItemList li input[type=checkbox]").each(function (index, val) {
            debugger
            var Id = $(val).attr("id");
            var ischecked = $("#" + Id).is(":checked", true);
            if (ischecked) {
                debugger
                var array = Id.split("_");
                var ItemId = array[1];
                ItemIdArray.push(ItemId);
            }
            ItemsIdsCommaSeparated = ItemIdArray.toString();
        })
        if (ItemIdArray.length != 0) {
            $.ajax({

                type: "Post",
                url: "/Test/SaveItems",
                datatype:"Json",
                data: { ItemIds: ItemsIdsCommaSeparated },
                success: function (response) {
                    //$("#loader").hide();
                    

                }

            })

        }

    }

</script>


All Code Factory

By at 3 comments:
Labels: , ,

Part 39 - How to display multiple checkbox with checked and unchecked value




In this video you will be able to display multiple checkbox on view page with checked and unchecked value. So, the expected output would be like what shown in below image.


#Controller Code

Add a controller named "Test" and replace everything with below code. In below code, you will find three methods
a) Index () : This method will return view with data in  ViewBag.ItemList  consisting all Items in the shop.

using MVCTutorial.Models;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading;
using System.Web;
using System.Web.Mvc;

namespace MVCTutorial.Controllers
{

    public class TestController : Controller
    {

        public ActionResult Index()
        {
            MVCTutorialEntities db = new MVCTutorialEntities();
           
            List<MyShop> ItemList = new List<MyShop>();
            ItemList.Add(new MyShop { ItemID = 1, ItemName = "Rice", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 2, ItemName = "Pulse", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 3, ItemName = "Chocholate", IsAvailable = true });
            ItemList.Add(new MyShop { ItemID = 4, ItemName = "Soap", IsAvailable = false });
            ItemList.Add(new MyShop { ItemID = 5, ItemName = "Tea", IsAvailable = true });

            ViewBag.ItemList = ItemList;

            return View();
        }


    }
}
  
#Model code (EmployeeViewModel)

Right click on your model folder and add a class. Then give a name "MyShop" and click ok button. Replace content with below code, 

 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace MVCTutorial.Models
{
    public class MyShop
    {
        public int ItemID { get; set; }
        public string ItemName { get; set; }
        public bool IsAvailable { get; set; }

    }
}

 # View Page (Index.cshtml)

Right click on your controller' s Index method and add a view. After adding view, replace content with below code.

 
<div class="panel panel-body" style="min-height:256px">

<div class="col-md-9">
        <div class="col-md-5">
            <img src="~/Content/loading.gif" id="loader" height="20" width="20" style="display:none" />

            <ul class="list-group" id="ItemList">
                @if (ViewBag.ItemList != null)
                {
                    <li class="list-group-item list-group-item-heading active">
                        <h4 class="list-group-item-text">Available Items in my store</h4>

                    </li>
                    foreach (var item in ViewBag.ItemList)
                    {
                        <li class="list-group-item">

                            <div class="checkbox">
                                <input id="item_@item.ItemID" type="checkbox" checked="@item.IsAvailable" />
                                <label for="item_@item.ItemID">@item.ItemName</label>
                            </div>


                        </li>

                    }
                    <li class="list-group-item"><a href="#" class="btn btn-block btn-success" onclick="SaveItems()">Save Item</a></li>

                }

            </ul>
        </div>
    </div>

</div>


All Code Factory

By at No comments:
Labels: ,

Part 38 - Attribute routing in asp.net MVC



In this video you will find the basic concept of an Attribute routing. We have included several example of attribute routing which will help you to understand from the depth.

What is attribute routing ?
- MVC-5 has included a new type of routing, which is known as attribute routing. 
- Attribute routing uses attributes to define routes. 
- Attribute routing gives you more control over the URI' s in your web application.
   
Example -


[Route("Student/{Id}")]

 public int GetStudent(int Id)

 {

       return Id;

 }
  
How to enable attribute routing?
-  Open your RouteConfig.cs which is present under App_Start folder. Then you have to  add MapMvcAttributeRoutes()” method into this . Please refer below screenshot.  

Can we use attribute routing with convention-based routing ?
  -    Yes, we can use both of them.

#Various example of attribute routing 

 1. Optional parameter and default value:
We can set parameter as optional and can set default value for this. To set optional parameter we  used "?" character in [Route]. Example: [Route("Student/Name/{Name?}")].
we can also set the default value for this. Example: [Route("Student/Name/{Name=Ashish}")].
Now below method can be accessed by below url pattern
1. Student/Name/YourName" 
2.  Student/Name"

    //Optional URI parameter
  [Route("Student/Name/{Name?}")]
  public string GetStudent(string Name)
  {
      return "Student with Name =" + Name;
   }

   //Default URI parameter value
   [Route("Student/Name/{Name=Ashish}")]
  public string GetStudent(string Name)
  {
    return "Student with Name =" + Name;
   }

2.  Route Prefixes: 
 -   You can use route prefix at method level as well as at controller level. 
    
a). Route prefix at method level 
 In [Route("Student")] and [Route("Student/{Id}")], the Student text is acting like route prefix 

 
 [Route("Student")]
 public string GetStudent()
 {
    return "All";
 }

 [Route("Student/{Id}")]
 public string GetStudent(int Id)
 {
    return "Student with Id=" + Id;
 }

b). Route prefix at controller level 
Route prefix can be added at controller level. Here we have added  [RoutePrefix("Home")]
on the top of TestController class. Now we can access the Index method with below url pattern. 
 Home/Index
namespace MVCTutorial.Controllers
{
    [RoutePrefix("Home")]   
    public class TestController : Controller
    {

        public ActionResult Index()
        {
            return View();
        }

     
    }
}

3.  Default Route :
We can set the default route at controller level. Example  [Route("{action=Index}")]

namespace MVCTutorial.Controllers
{
    [RoutePrefix("Home")]
    [Route("{action=Index}")]
    public class TestController : Controller
    {

        public ActionResult Index()
        {
            return View();
        }

     
    }
}

5.  Route Constraints
Route constraints let you restrict how the parameters in the route template are matched. The general syntax is {parameter:constraint}. For example, in the below code, there are three "GetStudent()" methods. Now see below cases in which we have shown that which url pattern will be used to call "GetStudent()" method.

 case (a). Test/Student/11  - It will call first GetStudent() method as we passed an integer value as an optional parameter i.e. "11" . Also "11" does not lie between 3 and 10. So, there is no chance for calling third GetStudent() method. So,  this route will work :  [Route("Student/{Id:int}")]
case (b). Test/Student/Ashish - It will call the second method as we have passed a string value as an optional parameter. i.e "Ashish". In this case [Route("Student/{Name}")] will be working.
case (c). Test/Student/4  - It will call the third GetStudent() method as we have passed an integer as an optional parameter and its also lies  between 3 to 10. So, this route will be working in this case : [Route("Student/{Id:int:min(3):max(10)}")] 

namespace MVCTutorial.Controllers
{
      
    public class TestController : Controller
    {
        public ActionResult Index()
        {
            return View();
        }
        [Route("Student/{Id:int}")]    //case (a)
        public string GetStudent(int Id)
        {
            return "Student with Id=" + Id;
        }

        [Route("Student/{Name}")]     // case (b)
        public string GetStudent(string Name)
        {
            return "Student with Name=" + Name;
        }

        [Route("Student/{Id:int:min(3):max(10)}")]  // case (c)
        public string GetStudent(int Id)
        {
            return "Student with Id=" + Id;
        }


        [Route("Student/Message/{Message:maxlength(5)}")]
        public string GetMessage(string Message)
        {
            return "Student message=" + Message;
        }

    }

}

Below constraint chart will help you to apply constraint against different URL











 
 
 
 
 


  

 SN


  

 Constraint


  

 Description 


  

 Example


 



  

ü1


  

alpha


  

Matches uppercase or lowercase
  Latin alphabet characters (a-z, A-Z)


  

{x:alpha}


 



  

ü2


  

bool


  

Matches a Boolean value.


  

{x:bool}


 



  

ü3


  

datetime


  

Matches a DateTime value.


  

{x:datetime}


 



  

ü4


  

decimal


  

Matches a decimal value.


  

{x:decimal}


 



  

ü5


  

double


  

Matches a 64-bit floating-point
  value.


  

{x:double}


 



  

ü6


  

float


  

Matches a 32-bit floating-point
  value.


  

{x:float}


 



  

ü7


  

guid


  

Matches a GUID value.


  

{x:guid}


 



  

ü8


  

int


  

Matches a 32-bit integer value.


  

{x:int}


 



  

ü9


  

length


  

Matches a string with the
  specified length or within a specified range of lengths.


  

{x:length(6)} 

    {x:length(1,20)}


 



  

ü10


  

long


  

Matches a 64-bit integer value.


  

{x:long}


 



  

ü11


  

max


  

Matches an integer with a maximum
  value.


  

{x:max(10)}


 



  

ü12


  

maxlength


  

Matches a string with a maximum
  length.


  

{x:maxlength(10)}


 



  

ü13


  

min


  

Matches an integer with a minimum
  value.


  

{x:min(10)}


 



  

ü14


  

minlength


  

Matches a string with a minimum
  length.


  

{x:minlength(10)}


 



  

ü15


  

range


  

Matches an integer within a range
  of values.


  

{x:range(10,50)}


 



  

ü16


  

regex


  

Matches a regular expression.


  

{x:regex(^\d{3}-\d{3}-\d{4}$)}



All Code Factory


By at No comments:
Labels: , , , , ,
Subscribe to: Posts (Atom)