c# - cannot convert from 'string' to 'System.Windows.Forms.MessageBoxIcon -


i'm working on piece of software lets generate own customized messagebox. code has no errors until try , put in messageboxbuttons , messageboxicon. then, error

2 argument 3: cannot convert 'string' 'system.windows.forms.messageboxbuttons' , error 3 argument 4: cannot convert 'string' 'system.windows.forms.messageboxicon'. issue here?

if (textboxx1.text == string.empty)     messagebox.show("you must enter title."); else if (richtextboxex1.text == string.empty)     messagebox.show("you must enter body."); else {     string previewtype = string.empty;     string previewbutton = string.empty;     if (radiobutton1.checked == true)         previewtype = "messageboxicon.error";     else if (radiobutton2.checked == true)         previewtype = "messageboxicon.information";     else if (radiobutton3.checked == true)         previewtype = "messageboxicon.exclamation";     else if (radiobutton4.checked == true)         previewtype = "messageboxicon.question";     if (radiobutton8.checked == true)         previewbutton = "messageboxbuttons.abortretryignore";     else if (radiobutton7.checked == true)         previewbutton = "messageboxbuttons.ok";     else if (radiobutton6.checked == true)         previewbutton = "messageboxbuttons.okcancel";     else if (radiobutton5.checked == true)         previewbutton = "messageboxbuttons.retrycancel";     else if (radiobutton9.checked == true)         previewbutton = "messageboxbuttons.yesno";     else if (radiobutton10.checked == true)         previewbutton = "messageboxbuttons.yesnocancel";     messagebox.show(textboxx1.text, richtextboxex1.text, previewbutton, previewtype); }

the error because you're passing strings messagebox.show(), should passing messageboxbuttons , messageboxicon. in other words, cannot this:

messagebox.show("some text", "a caption", "messageboxbuttons.abortretryignore", "messageboxicon.error");

but can this:

messagebox.show("some text", "a caption", messageboxbuttons.abortretryignore, messageboxicon.error);

your previewtype , previewbutton variables should defined actual types, not strings:

messageboxicon previewtype; messageboxbuttons previewbutton;

if update sample use correct data types, looks this:

if (textboxx1.text == string.empty)     messagebox.show("you must enter title."); else if (richtextboxex1.text == string.empty)     messagebox.show("you must enter body."); else {     messageboxicon previewtype;     messageboxbuttons previewbutton;     if (radiobutton1.checked == true)         previewtype = messageboxicon.error;     else if (radiobutton2.checked == true)         previewtype = messageboxicon.information;     else if (radiobutton3.checked == true)         previewtype = messageboxicon.exclamation;     else if (radiobutton4.checked == true)         previewtype = messageboxicon.question;     if (radiobutton8.checked == true)         previewbutton = messageboxbuttons.abortretryignore;     else if (radiobutton7.checked == true)         previewbutton = messageboxbuttons.ok;     else if (radiobutton6.checked == true)         previewbutton = messageboxbuttons.okcancel;     else if (radiobutton5.checked == true)         previewbutton = messageboxbuttons.retrycancel;     else if (radiobutton9.checked == true)         previewbutton = messageboxbuttons.yesno;     else if (radiobutton10.checked == true)         previewbutton = messageboxbuttons.yesnocancel;     messagebox.show(textboxx1.text, richtextboxex1.text, previewbutton, previewtype);

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