C# 窗体 切换、重复显示等遗留问题解决（第五天）

一、解决同一窗体多次点击重复显示BUG

（1）点击弹出学校窗体

         #region 弹出学校窗体
         /// <summary>
         /// 弹出学校窗体
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void SchoolToolStripMenuItem_Click(object sender, EventArgs e)
         {
             //点击后显示SchoolTan这个弹窗
             SchoolTan schooltanchuang=new SchoolTan();

             //this.IsMdiContainer = true;
             //WFromMain mainForm = new WFromMain();
             //schooltanchuang.MdiParent = this;
             /*
              *  方法：明确父子关系：
                     son form = new Form();
                     form.MdiParent = this(father);
                     form.show();
                     前提是先要设置father窗体
                     isMdiContainer = true;
              * **/
             if (this.MdiChildren==null||this.MdiChildren.Length==)
             {
                 schooltanchuang.Show();
                 //让子窗体不超出父窗体界限,给子窗体指定父窗体
                 schooltanchuang.MdiParent = this;
                 return;
             }
             bool flag = false;
             foreach (var item in this.MdiChildren)
             {
                 if (item.Text == schooltanchuang.Text)
                 {
                     schooltanchuang = item as SchoolTan;
                     schooltanchuang.Activate();
                     flag = true;
                     break;
                 }
             }
             if (!flag)
             {
                 schooltanchuang.Show();
                 //给子窗体指定父窗体
                 schooltanchuang.MdiParent = this;
             }
         }
         #endregion

（2）弹出商会组织窗体

  #region 弹出商会组织窗体
         /// <summary>
         /// 弹出商会组织窗体
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void ShanghuiToolStripMenuItem_Click(object sender, EventArgs e)
         {
             //点击弹出重庆商会窗体
             ShangHui shang = new ShangHui();
             //shang.Show();
             //shang.MdiParent = this;
             if (this.MdiChildren == null || this.MdiChildren.Length == )
             {
                 shang.Show();
                 //让子窗体不超出父窗体界限,给子窗体指定父窗体
                 shang.MdiParent = this;
                 return;
             }
             bool flag = false;
             foreach (var item in this.MdiChildren)
             {
                 if (item.Text == shang.Text)
                 {
                     shang = item as ShangHui;
                     shang.Activate();
                     flag = true;
                     break;
                 }
             }
             if (!flag)
             {
                 shang.Show();
                 //给子窗体指定父窗体
                 shang.MdiParent = this;
             }
         }
         #endregion

（3）点击弹出公益组织窗体

  #region 点击弹出公益组织窗体
         /// <summary>
         /// 点击弹出公益组织窗体
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void 公益组织ToolStripMenuItem_Click(object sender, EventArgs e)
         {
             //点击弹出公益组织窗体
             GongYi gongyi = new GongYi();
             //gongyi.Show();
             //gongyi.MdiParent = this;
             if (this.MdiChildren == null || this.MdiChildren.Length == )
             {
                 gongyi.Show();
                 //让子窗体不超出父窗体界限,给子窗体指定父窗体
                 gongyi.MdiParent = this;
                 return;
             }
             bool flag = false;
             foreach (var item in this.MdiChildren)
             {
                 if (item.Text == gongyi.Text)
                 {
                     gongyi = item as GongYi;
                     gongyi.Activate();
                     flag = true;
                     break;
                 }
             }
             if (!flag)
             {
                 gongyi.Show();
                 //给子窗体指定父窗体
                 gongyi.MdiParent = this;
             }
         }
         #endregion      

二、关闭所有的运行环境操作

       /// <summary>
         /// 关闭运行环境
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void 关闭全部窗体ToolStripMenuItem_Click(object sender, EventArgs e)
         {
             //关闭运行环境
             Environment.Exit();
         }    

三、右键菜单关闭所有弹窗（右键菜单有多个选项时的情况）

 private void CloseAllToolStripMenuItem_Click(object sender, EventArgs e)
         {

              int len = this.MdiChildren.Length;
              for (int i = ; i <len ; i++)
              {
                  Form frm = this.MdiChildren[];
                  frm.Close();
              }
          }

四、获取radiobatton的text值的方法

  private void btnNanNv_Click(object sender, EventArgs e)
         {
             string checkedRBName = "";

             //取得选中单选按钮的名称
             if (radioButtonMan.Checked)
             {
                 checkedRBName = radioButtonMan.Name;
                 string textNan = radioButtonMan.Text;
                 MessageBox.Show("这是选中了"+textNan);
             }
             else if (radioButtonGirl.Checked)
             {
                 checkedRBName = radioButtonGirl.Name;
                 string textNv = radioButtonGirl.Text;
                 MessageBox.Show("这是选中了"+ textNv);
                 //获得和radioButton按钮对应标签的内容，用的是 radioButton2.Text属性;  

             }

             MessageBox.Show(checkedRBName + " was checked.");
         }