private void btnWriteDb_Click(object sender, EventArgs e)
{
if (listboxAlias.SelectedIndex < 0)
{
MessageBox.Show("未选中变量！", "提示信息");
}
else
{
try
{
//注意array在函数内部做参数时，数据下标是从1开始的所以要考虑将第0位空出来，n个Item，就要定义n+1列数组，添加一个0，但在函数使用时，又是从左开始读取的。(针对opc)
//否则会报错
OPCItem bItem = KepItems.GetOPCItem(itmHandleServer);
int[] temp = new int[2] {
0, bItem.ServerHandle
};
Array serverHandles = (Array)temp;
Array values;
Array Errors;
object qualities;
object timeStamps;
KepGroup.SyncRead(1, 1, ref serverHandles, out values, out Errors, out qualities, out timeStamps);
bool result = (Errors.GetValue(1).ToString() == "0") ? true : false;
object tagValue = values.GetValue(1);
if (result)
{
int addResult = TagDataOper.Add(new TagData()
{
ServerName = txtServerName.Text,
AliasName = listboxAlias.SelectedItem.ToString(),
TagValue = tagValue.ToString()
});
if (addResult == 1)
{
MessageBox.Show("入库成功！", "提示信息");
}
else
{
MessageBox.Show("入库失败！", "提示信息");
}
}
GC.Collect();
}
catch (Exception err)
{
}
}
}
private void btnReadDb_Click(object sender, EventArgs e)
{
if (listboxAlias.SelectedIndex < 0)
{
MessageBox.Show("未选中变量！", "提示信息");
}
else
{
List <TagData> list = TagDataOper.Read(txtServerName.Text, listboxAlias.SelectedItem.ToString());
this.rtxtRecordDb.Text = "";
foreach (var item in list)
{
string str1 = "Tag值：" + item.TagValue + "\t";
string str4 = "入库时间：" + item.CreateTime.ToString();
this.rtxtRecordDb.Text += str1 + str4 + "\r\n";
}
}
}