C# (CSharp) WindowsFormsApplication5 Dakaixiangmu Beispiele

Beispiel #1

        private void button6_Click(object sender, EventArgs e)
        {
            Form f = Application.OpenForms["Dakaixiangmu"]; //查找是否打开过Form1窗体

            if (f == null)                                  //没打开过
            {
                Dakaixiangmu dakaixiangmu = new Dakaixiangmu();
                dakaixiangmu.MdiParent = this.MdiParent;
                dakaixiangmu.Show();
            }
            else
            {
                f.Focus();   //打开过就让其获得焦点
            }
        }

Beispiel #2

Datei: Xinjian.cs Projekt: qq54605802/qsgjxt_client

        private void button6_Click(object sender, EventArgs e)
        {
            Form f = Application.OpenForms["Dakaixiangmu"];  //查找是否打开过Form1窗体
            if (f == null) //没打开过
            {
                Dakaixiangmu dakaixiangmu= new Dakaixiangmu();
                dakaixiangmu.MdiParent = this.MdiParent;
                dakaixiangmu.Show();

            }
            else
            {
                f.Focus();   //打开过就让其获得焦点
            }
        }