In
this article I am going to explain how to apply the conditional statement on webgrid
column in mvc.
Description:
Here
I am going to explain the conditional attribute for webgrid. I have created a
table Employees. At the time of
registration some of employees not upload their picture and enter their email
id. I want to show image not available
image where employee’s pic is missing and same for email id.
Implementation:
I
have created a table Employees and insert
some dummy record into it.
 |
| Table : Employee |
 |
| Dummy reocrds |
Model (Employee.cs)
public partial class Employee
{
public int Id { get; set; }
public string Name { get; set; }
public Nullable<int> Phone { get; set; }
public Nullable<int> Salary { get; set; }
public string Department { get; set; }
public string ImagePath { get; set; }
public string EmailId { get; set; }
}
Controller
(EmployeeController.cs):
Import
the namespace:
using MVC_Project.Models;
DemoEntities1 db = new DemoEntities1();
//
// GET: /Employee/
public ActionResult Index()
{
return
View(db.Employees.ToList());
}
Add View
(index.cshtml):
Add
the view for Index.
@model IEnumerable<MVC_Project.Models.Employee>
WebGrid grid = new WebGrid(Model, canSort: true, canPage: true,rowsPerPage:5);
}
<style
type="text/css">
table {
width: 80%;
}
th {
padding: 2px 2px 2px;
}
td {
text-align: center;
}
table img
{
width:150px;
}
</style>
@Html.ActionLink("Add New Employee", "Create")
@grid.GetHtml(
tableStyle: "table",
fillEmptyRows: true,
headerStyle: "false",
footerStyle: "false",
mode: WebGridPagerModes.All,
columns: grid.Columns
(
grid.Column("Name","Name"),
grid.Column("Phone","Phone"),
grid.Column("Salary","Salary"),
grid.Column("Department","Department"),
//if else condition
to check email id
grid.Column("Email",format: (item) =>
{
if (item.emailid == null)
return Html.Raw("Email not
available");
else
return (item.EmailId);
}),
//if else condition
to display image
grid.Column("Image",format: (item) =>
{
if (item.ImagePath == null)
return Html.Raw (string.Format("<text><img
src=\"{0}\" alt=\"Image\"/></text>", Url.Content("~/images/image.jpg")));
else
return Html.Raw(string.Format("<text><img
src=\"{0}\" alt=\"Image\" /></text>",
Url.Content(item.ImagePath)));
}),
grid.Column("Edit",format:@<text>@Html.ActionLink("Edit", "Update", new { id = item.ID })</text>),
grid.Column("Delete",format:@<text>@Html.ActionLink("Delete", "Delete", new { id = item.ID })</text>)
)
)
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