async Task <SearchResult> query_item_by_name()
{
string itemName = null;
while (string.IsNullOrEmpty(itemName))
{
using (InputBox input = new InputBox("Please enter the item name", false))
if (input.ShowDialog(this) == DialogResult.OK)
{
itemName = input.Value;
}
if (string.IsNullOrEmpty(itemName))
{
if (MessageBox.Show("You must enter an item name to continue!", "Empty Name", MessageBoxButtons.OKCancel, MessageBoxIcon.Hand) == DialogResult.Cancel)
{
break;
}
}
}
string selectedName = null;
if (string.IsNullOrEmpty(itemName))
{
MessageBox.Show("You have entered an invalid item name!", "Invalid Item Name", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
List <SearchResult> searchResults = await queryDBForItems(itemName);
if (searchResults.Count == 0)
{
MessageBox.Show("Failed to query items from the database!", "SQL Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
List <string> resultNames = searchResults.Select(r => r.Name).ToList();
if (resultNames.Count == 0)
{
MessageBox.Show("Failed to query item names from search results!", "Result Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
using (ListSelect listSelect = new ListSelect("Please select an item", resultNames))
if (listSelect.ShowDialog(this) == DialogResult.OK)
{
selectedName = listSelect.SelectedText;
}
if (string.IsNullOrEmpty(selectedName))
{
MessageBox.Show("Invalid selected name!", "Invalid Selection", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
return(searchResults.Find(r => r.Name == selectedName));
}
}
}
}
return(null);
}
