form open by variable

S.murugesan wrote:

i have formname in string varible

If this is a name of your form class then you could use something like:

// If the class name is stored in "formClass" string variable
Type formType = Type.GetType(formClass);
Form myForm = (Form)Activator.CreateInstance(formType);

This approach could be used if your form is not created.
If your form is already created then see the post from Kemo72000.

Regards

S.murugesan wrote:

(convert string to Form in C#)

:omg: :omg:

What are you talking about ?

Do you mean to show the string content in the form ?

If so, just create a label and expose it through some property.

public string MyLabel
{
 get{ return this.Label1.Text;}
 set { this.Label1.Text = value; }
}

Now from your form,

MyForm f = new MyForm();
f.MyLabel = mystring;

I hope this is what you wanted.
:thumbsup: