Hi
I would like to create a method for opening up a form by passing across a string.
e.g. Something along the lines of the below code.
Is this possible in C#?
Public void OpenForm (string formname)
{
formname myform = new formname();
myform.show();
}
Type type = Type.GetType("WindowsFormsApplication1.Form2");
object obj = Activator.CreateInstance(type);
(obj as Form).Show();I am not sure how to get this going.
I am passing across the form name as a string. when I run the code the value of type is null.
I have even hard coded the form name and type still comes up as null.
Am I missing something
public void Open_Modal_Form(string formname)
{
Type type = Type.GetType(formname); // This == null
object obj = Activator.CreateInstance(type);
(obj as Form).Show();
}You need a fully qualified name.
"Namespace.Class"
You're a legend!!! Thanks for the help :-)
ok I thought that was the end to my solution but I still have a small issue.
The form opens outside of the MainForm (Container) which is a toplevel form. The code is run from the main form and IsMDIContainer is set to True. Yet it still opens as a new window.
Is there anyway to open this in my container. I have the following code below.
public void Open_Modal_Form(string formname)
{
Type type = Type.GetType("MyProject.Forms." + formname );
object obj = Activator.CreateInstance(type);
this.IsMdiContainer = true;
(obj as Form).ShowDialog(this);
}Type type = Type.GetType("WindowsFormsApplication1.Form2");
object obj = Activator.CreateInstance(type);
(obj as Form).MdiParent = this; // Form1
(obj as Form).Show();Strange, that brings up nothing. My form is not showing when I try that line.
Also to bring up a Modal form it gives me an error too.
public void Open_Form(string formname)
{
Type type = Type.GetType("myProject.Forms." + formname);
object obj = Activator.CreateInstance(type);
(obj as Form).MdiParent = this;
(obj as Form).Show();
}
public void Open_Modal_Form(string formname)
{
Type type = Type.GetType("myProject.Forms." + formname );
object obj = Activator.CreateInstance(type);
(obj as Form).MdiParent = this;
(obj as Form).ShowDialog(this); // This gets an error: Form that is not a top-level form cannot be displayed as a modal dialog box. Remove the form from any parent form before calling showDialog.
//Yet MainForm has this.IsMdiContainer = true;
}The error is telling you that your secondary form cannot have a parent. Remove the code saying .MdiParent = this before you make the call to .ShowDialog().
As for the first issue, I'm afraid I don't know what to tell you.
But What about if the form in other project ?
Your code return null
Type type = Type.GetType(formname); // This == null
My Fully class name is GL.Operations.frmAccounting
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