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ボタンが押されたらテキストボックスに入ってる内容に従って何か処理する・・・のサンプルコード

import clr
clr.AddReference("System.Windows.Forms")
from System.Windows import Forms

class SimpleInputForm(Forms.Form):
    def __init__(self):
        self.Height = 120
        self.Width = 400
        self.Text = 'IronPython Windows.Forms sample'

        self.Controls.Add(Forms.Label(Left=20, Top=10, Text="Input your name."))
        self.MessageText = Forms.TextBox(Left=20, Top=35, Width=350)
        self.Controls.Add(self.MessageText)
        
        self.MessageButton = Forms.Button(Text="&Message", Left=100, Top=60)
        self.MessageButton.Click += self.OnClickHello
        self.Controls.Add(self.MessageButton)

        self.QuitButton = Forms.Button(Text="&Quit", Left=230, Top=60)
        self.QuitButton.Click += self.OnClickClose
        self.Controls.Add(self.QuitButton)

    def OnClickHello(self, sender, args):
        if self.MessageText.Text:
            message = "Hello, " + self.MessageText.Text + "!"
        else:
            message = "Hello, world!"
        Forms.MessageBox.Show(message)
        
    def OnClickClose(self, sender, args):
        self.Close()

if __name__ == '__main__':
    app = SimpleInputForm()
    Forms.Application.Run(app)