public string GetFilterText()
{
string toReturn = "";
string filterCase = cbxFilterType.SelectedItem.ToString();
if (filterCase == "By Value:")
{
ComboBox cbxValueFilterType = filterPanel.Children.OfType <ComboBox>().Where(cbx => cbx.Name == "cbxValueFilterType").First();
string colRef;
// If a specific column is selected
if (currentColumn is not null)
{
colRef = $"[{currentColumn.TableName}].[{currentColumn.Name}]";
string type = currentColumn.Constraints.Type;
string[] values = new string[textBoxes.Length];
for (int i = 0; i < textBoxes.Length; i++)
{
string str = textBoxes[i].Text;
values[i] = type switch
{
"int" => $"{int.Parse(str)}",
"varchar" => $"'{str}'",
"date" => $"'{DateTime.Parse(str):yyyy-MM-dd}'",
"time" => $"'{TimeSpan.Parse(str):hh\\:mm}'",
"decimal" => $"{double.Parse(str)}",
"bit" => $"{(bool.Parse(str) ? "1" : "0")}",
_ => throw new NotImplementedException(),
};
}
toReturn = (cbxValueFilterType.SelectedItem.ToString()) switch
{
"Contains" => $"Lower({colRef}) LIKE Lower('%{textBoxes[0].Text}%')",
"Equal To" => $"{colRef} = {values[0]}",
"Between" => $"{colRef} BETWEEN {values[0]} AND {values[1]}",
"Less Than" => $"{colRef} < {values[0]}",
"More Than" => $"{colRef} > {values[0]}",
_ => throw new NotImplementedException(),
};
}
else
{
if (textBoxes[0].Text == "")
{
return("");
}
toReturn = "(";
int countAdded = 0;
for (int i = 0; i < columns.Length; i++)
{
string toAdd = "";
string type = columns[i].Constraints.Type;
string text = textBoxes[0].Text;
colRef = $"[{columns[i].TableName}].[{columns[i].Name}]";
switch (cbxValueFilterType.SelectedItem.ToString())
{
case "Contains":
switch (type)
{
case "varchar": toAdd = $"Lower({colRef}) LIKE Lower('%{text}%')"; break;
case "int":
if (int.TryParse(text, out int intRes))
{
toAdd = $"{colRef} = {intRes}";
}
break;
case "decimal":
if (double.TryParse(text, out double doubleRes))
{
toAdd = $"{colRef} = {doubleRes}";
}
break;
case "date":
if (DateTime.TryParse(text, out DateTime dRes))
{
toAdd = $"{colRef} = '{dRes.Date:yyyy-MM-yy}'";
}
break;
case "time":
if (TimeSpan.TryParse(text, out TimeSpan timeSpan))
{
toAdd = $"{colRef} = '{timeSpan:hh\\:mm}'";
}
break;
case "bit":
if (text.ToLower() == "true" || text.ToLower() == "false")
{
toAdd = $"{colRef} = {bool.Parse(text)}";
}
break;
default: throw new NotImplementedException();
}
break;
case "Equal To":
switch (type)
{
case "varchar": toAdd = $"{colRef} = '{text}'"; break;
case "int":
if (int.TryParse(text, out int intRes))
{
toAdd = $"{colRef} = {intRes}";
}
break;
case "decimal":
if (double.TryParse(text, out double doubleRes))
{
toAdd = $"{colRef} = {doubleRes}";
}
break;
case "date":
if (DateTime.TryParse(text, out DateTime dRes))
{
toAdd = $"{colRef} = '{dRes.Date:yyyy-MM-yy}'";
}
break;
case "time":
if (TimeSpan.TryParse(text, out TimeSpan timeSpan))
{
toAdd = $"{colRef} = '{timeSpan:hh\\:mm}'";
}
break;
case "bit":
if (text.ToLower() == "true" || text.ToLower() == "false")
{
toAdd = $"{colRef} = {bool.Parse(text)}";
}
break;
default: throw new NotImplementedException();
}
break;
default: throw new NotImplementedException();
}
if (toAdd != "")
{
if (countAdded != 0)
{
toReturn += " OR ";
}
toReturn += toAdd;
countAdded++;
}
if (i == columns.Length - 1)
{
toReturn += ")";
}
}
}
}
else if (filterCase == "By Reference:")
{
FilterManager filterManager = filterPanel.Children.OfType <FilterManager>().FirstOrDefault();
toReturn = filterManager.GetFilterText();
}
if (toReturn == "()")
{
return("");
}
return(toReturn);
}