C#新建cs中为啥datagridview没数据的？
public class lineIP
{
public string[] line1_name = { "a", "B", "C", "D", "X" };
public string[] line1_ip = new string[5];
public string[] line2_name = { "1", "2", "3", "4" };
public string[] line2_ip = new string[4];
public string[] ceshi_name = { "百度", "新浪", "本机", "腾讯" };
public string[] ceshi_ip = { "202.108.22.5", "202.108.33.74", "192.168.0.1", "182.254.0.217" };
public lineIP()
{
for (int a = 0; a < 5; a++)
{
line1_ip[a] = "10.121.111." + a;
}
for (int b = 0; b < 4; b++)
{
line2_ip[b] = "10.132.222." + b;
}
}
}
public void chezhan_name_select()
{
if (chezhan_ip == null)
chezhan_ip = new System.Windows.Forms.DataGridView();
lineIP lineip = new lineIP();
MessageBox.Show(lineip.line1_name.Count().ToString() + "11111");
//这句话能显示
switch (x)
{
case 1:
for (int i = 0; i < lineip.line1_name.Count(); i++)
{
chezhan_ip.Rows.Add();
chezhan_ip.Rows[i].Cells[0].Value = lineip.line1_name[i];
chezhan_ip.Rows[i].Cells[1].Value = lineip.line1_ip[i];
}
MessageBox.Show(lineip.line1_name.Count().ToString()+"ffffffff"); ///这句话就不能显示~~~
break;
case 2:
for (int i = 0; i < lineip.line2_name.Count(); i++)
{
chezhan_ip.Rows.Add();
chezhan_ip.Rows[i].Cells[0].Value = lineip.line2_name[i];
chezhan_ip.Rows[i].Cells[1].Value = lineip.line2_ip[i];
}
break;
case 3:
for (int i = 0; i < lineip.ceshi_name.Count(); i++)
{
chezhan_ip.Rows.Add();
chezhan_ip.Rows[i].Cells[0].Value = lineip.ceshi_name[i];
chezhan_ip.Rows[i].Cells[1].Value = lineip.ceshi_ip[i];
}
break;
}
}
[解决办法]
chezhan_ip = new System.Windows.Forms.DataGridView();是你新建的，而不是窗口上的那个。当然没有显示。
[解决办法]
这个问题和你那个定时器的问题一模一样。你先把语法学会，再来写程序。
[解决办法]
为什么不做个参数，把窗体上的Datagridview传过去赋值？
[解决办法]
把数组转为数据表后绑定控件显示如
