当ListView多选时返回第一次选中的项索引

正确
ListView 选择多项目返回的之前的那项-LMLPHP

定义一个变量

=-1 表示第一次没选任何一项
  private int FirstSelectedIndex =-1;
 
 

更新FirstSelectedIndex 的值一定要放在Mouse_Click

放在 listView1_SelectedIndexChanged或listView1_ItemSelectionChanged无效
   private void listView1_MouseClick(object sender, MouseEventArgs e)
        {
            int count = listView1.SelectedItems.Count;
            if (count > 0)
            {
                int Index = listView1.SelectedItems[0].Index;
                if (count == 1)
                    FirstSelectedIndex = Index;
            }

}

       

高亮选中第一次选择的项

Form1_Click
  private void Form1_Click(object sender, EventArgs e)
        {
            if (listView1.Items.Count > 0)
            {
                if (FirstSelectedIndex != -1)
                {
                    //RUN
                    listView1.MultiSelect = false;
                    listView1.Focus();
                    Text = listView1.Items[FirstSelectedIndex].Text;
                    listView1.Items[FirstSelectedIndex].Selected = true;
                    listView1.MultiSelect = true;
                }
                if ((FirstSelectedIndex == -1) && (listView1.SelectedItems.Count > 0))
                {
                    //RUN
                    FirstSelectedIndex = 0;
                    listView1.MultiSelect = false;
                    listView1.Focus();
                    Text = listView1.Items[FirstSelectedIndex].Text;
                    listView1.Items[FirstSelectedIndex].Selected = true;
                    listView1.MultiSelect = true;
                }
            }

}

 
 
 
 
 
 
 
 
 
 
 
 
 
 
04-14 08:13