.net - passing data between 3 windows forms in visual studio using C# -

i have windows application has 3 forms : form1,2,3. want send text of textbox form2 form1 , same text form1 form3, is,

text form2-->form1-->form3

• form 1, has 2 buttons , openform2, openform3.
• form2 has textbox form2_textbox, & button send_to_form1_button
• form3 has textbox received_from_form1_textbox

now,

• on clicking button openform2 on form1, form2 opens,
• a string entered in textbox form2_textbox of form2,
• when button form2_button of form clicked, want form1 receive string value & stores in string receivefromform2,
• and displays string value on form3_textbox of form3.

public partial class form1 : form {     string receivefromform2a;      public form1()     { initializecomponent(); }      public void method_receive_from_form2(string receivefromform2)     {         receivefromform2a = receivefromform2;         form3 f3 = new form3(receivefromform2a);     }      private void openform3_click(object sender, eventargs e)         {             form3 f3 = new form3();**----this line gives error:no overload method form3 takes 0 arguments**              f3.show();         }      private void openform2_click(object sender, eventargs e)     {         form2 f2 = new form2();         f2.show();     } }

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public partial class form2 : form {     public form2()     {         initializecomponent();         string loginname = form2_textbox.text;     }      //sending value of textbox on form2 form1.      private void send_to_form1_button_click(object sender, eventargs e)     {         form1 f1 = new form1();         f1.method_receive_from_form2(form2_textbox.text);     } } 

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public partial class form3 : form {     public form3(string receive_from_form1)     {         initializecomponent();         received_from_form1_textbox.text = receive_from_form1;     } } 

this error occurs because in form2 have given argument form1 during object creation. should do? there other way or how remove error?

when include f3.show() in method method_receive_from_form2 there no error. makes form3 load automatically without button click. want form3 open clicking button on form1. , value shown in textbox.

i recommend change using constructors using properties. keep things 'contained' , it's pretty simple.

ex:

public partial class form3 : form {    public string form1text {get; set;}     public form3()    {        initializecomponent();    } } 

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public partial class form2 : form {    public form2()    {        initializecomponent();        string loginname = form2_textbox.text;    }     public string form2text {get; set;}     private void send_to_form1_button_click(object sender, eventargs e)    {         form2text = form2_textbox.text;        this.dialogresult = dialogresult.ok;        this.close();    } } 

then in form 1:

public partial class form1 : form {    string receivefromform2a;     public form1()    { initializecomponent(); }             private void openform3_click(object sender, eventargs e)     {         form3 f3 = new form3();         f3.form1text = receivefromform2a;         f3.show();     }  private void openform2_click(object sender, eventargs e) {     form2 f2 = new form2();     if(f2.showdialog() == dialogresult.ok)     {       receivefromform2a = f2.form2text; //new property on form2.     } } }