//查询要素
private void btnSearch_Click(object sender, EventArgs e)
{
//查询图层对应的要素
sLayer.QuerySQL(tbxSQL.Text, SelectedMode.New);
//查询的模式，更新结果
SelectionIsImput = true;
RefreshSelectFeature();
SelectionIsImput = false;
//触发联动事件,form1显示选择要素
SelectFeatureChanged?.Invoke(this);
}
//选择要素改变
private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
if (!SelectionIsImput)
{
//清除之前的要素
sLayer.SelectedItems.Clear();
if (dataGridView1.SelectedRows.Count > 0)
{
//遍历，找到选择的要素
foreach (DataGridViewRow row in dataGridView1.SelectedRows)
{
if (row.Cells["ID"].Value != null) //ID不为空
{
int ID = (int)row.Cells["ID"].Value;
sLayer.SelectedItems.Add(ID);
}
}
}
}
//联动，form1显示选择的要素
SelectFeatureChanged?.Invoke(this);
}