help me in Visual C++.Net

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Visual-Studio

hi all,
i convert a search project from c# to VC++.Net but there is 1 error i can't find the answer..
in my project i have browse button but doesn't save the file which i pick it.. there is 1 instruction in the code can't convert it ..
this is the instruction (DialogResult1.OK)

and this is the code for the browse button :

private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
                 if (openFileDialog1->ShowDialog() == DialogResult1.OK)
            {
                textBox1->Text = openFileDialog1->FileName;
                StreamReader ^sr =gcnew StreamReader(textBox1->Text);
                textBox4->Text = sr->ReadToEnd();
            }

and this is the error :

error C2228: left of '.OK' must have class/struct/union
1>        type is 'System::Windows::Forms::DialogResult ^'

please help me..thanx :D:D