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tharinda dayal
NA
19
675
Ninject for winforms - how to apply ninject DI for MDI child
May 25 2020 12:37 AM
I am developing desktop base application using c# windows form. Recently I added NInject to my project, it is working good but when i call to child forms from MDI form it's asking constructor parameter of child form because i am using form constructor to pass interface parameter. i don't know how to resolve it.
please can any one help me to resolve it. this is my sample project
CompositionRoot
public
class
CompositionRoot
{
private
static
IKernel _ninjectKernel;
public
static
void
Wire(INinjectModule module)
{
_ninjectKernel =
new
StandardKernel(module);
}
public
static
T Resolve<T>()
{
return
_ninjectKernel.Get<T>();
}
}
ApplicationModule
public
class
ApplicationModule : NinjectModule
{
public
override
void
Load()
{
Bind(
typeof
(IRepository<>)).To(
typeof
(GenericRepository<>));
Bind(
typeof
(ITest)).To(
typeof
(TestImpl));
}
}
Program
static
class
Program
{
[STAThread]
static
void
Main()
{
CompositionRoot.Wire(
new
ApplicationModule());
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(
false
);
//Application.Run(new Form1());
Application.Run(CompositionRoot.Resolve<Form1>());
}
}
MDI Form
public
partial
class
Form1 : Form
{
private
IRepository<Process> _processRepository;
public
Form1(IRepository<Process> productionRepository, ITest test)
{
this
._processRepository = productionRepository;
this
._test = test;
InitializeComponent();
}
private
void
button1_Click(
object
sender, EventArgs e)
{
Form2 frm =
new
*Form2()*;
frm.Show();
}
}
Child form
public
partial
class
Form2 : Form
{
private
ITest _test;
public
Form2(ITest test)
{
_test = test;
InitializeComponent();
}
private
void
button1_Click(
object
sender, EventArgs e)
{
var a = _test.DisplayRow();
MessageBox.Show(a);
}
}
ITest
public
interface
ITest
{
string
DisplayRow();
}
TestImpl
public
class
TestImpl : ITest
{
public
string
DisplayRow()
{
return
"Test service"
;
}
}
GenericRepository
public
class
GenericRepository<T> : IRepository<T>
{
public
override
string
ToString()
{
return
"MyRepository with type : "
+
typeof
(T).Name;
}
}
IRepository
public
interface
IRepository<T>
{
}
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Answers (
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