int index=listview1.SelectedItems[0].Index是你选中那项的Index listview1.Items[index+1] listview1.Items[index-1]
根据你选择的列 获取到Index;Item[Index+1]; Item[Index-1];
int pre = -1; int nxt = -1; if(listView1.SelectedIndex>0) pre = listView1.Items[listView1.SelectedIndex-1].SubItems[x];if(listView1.SelectedIndex < listView1.Items.Count-1) nxt = listView1.Items[listView1.SelectedIndex+1].SubItems[x];int current = [from edit]if((pre != -1 && current<pre) || (nxt != -1 && current>nxt)) { MessageBox.Show("Out of range."); } else { //提交 }
个人看法 int change = ?;//输入修改的数值 int index=listview1.SelectedItems[0].Index if(index > 0 )//选择的可能是list的第一个孩子 { int first = listview1.Items[index-1] ; int second = listview1.Items[index+1]; if(first > change|| second < change) { MessageBox.Show("Over Range"); } }else { int second = listview1.Items[index+1]; if(second < change) { MessageBox.Show("Over Range"); } }
private void button4_Click(object sender, EventArgs e) { int index = this.listView1.SelectedItems[0].Index; string str = this.listView1.SelectedItems[0].Text; int value = 6;//你修改的值 if(index == 0) { if (value > Int32.Parse(this.listView1.Items[index + 1].Text)) { MessageBox.Show("警告!"); } else { this.listView1.Items[index].Text = value.ToString(); } } else if (index == this.listView1.Items.Count - 1) { if (value > Int32.Parse(this.listView1.Items[index - 1].Text)) { MessageBox.Show("警告!"); } else { this.listView1.Items[index].Text = value.ToString(); } } else { if (value > Int32.Parse(this.listView1.Items[index - 1].Text) && value > Int32.Parse(this.listView1.Items[index + 1].Text)) { MessageBox.Show("警告!"); } else { this.listView1.Items[index].Text = value.ToString(); } } }
listview1.Items[index+1]
listview1.Items[index-1]
Item[Index-1];
int nxt = -1;
if(listView1.SelectedIndex>0)
pre = listView1.Items[listView1.SelectedIndex-1].SubItems[x];if(listView1.SelectedIndex < listView1.Items.Count-1)
nxt = listView1.Items[listView1.SelectedIndex+1].SubItems[x];int current = [from edit]if((pre != -1 && current<pre) || (nxt != -1 && current>nxt))
{
MessageBox.Show("Out of range.");
}
else
{
//提交
}
int change = ?;//输入修改的数值
int index=listview1.SelectedItems[0].Index
if(index > 0 )//选择的可能是list的第一个孩子
{
int first = listview1.Items[index-1] ;
int second = listview1.Items[index+1];
if(first > change|| second < change)
{
MessageBox.Show("Over Range");
}
}else
{
int second = listview1.Items[index+1];
if(second < change)
{
MessageBox.Show("Over Range");
}
}
{
int index = this.listView1.SelectedItems[0].Index;
string str = this.listView1.SelectedItems[0].Text; int value = 6;//你修改的值
if(index == 0)
{
if (value > Int32.Parse(this.listView1.Items[index + 1].Text))
{
MessageBox.Show("警告!");
}
else
{
this.listView1.Items[index].Text = value.ToString();
}
}
else if (index == this.listView1.Items.Count - 1)
{
if (value > Int32.Parse(this.listView1.Items[index - 1].Text))
{
MessageBox.Show("警告!");
}
else
{
this.listView1.Items[index].Text = value.ToString();
}
}
else
{
if (value > Int32.Parse(this.listView1.Items[index - 1].Text) &&
value > Int32.Parse(this.listView1.Items[index + 1].Text))
{
MessageBox.Show("警告!");
}
else
{
this.listView1.Items[index].Text = value.ToString();
}
}
}