protected void btnApply_Click(object sender, EventArgs e)
{
Double tmp; // workaround for tryparse validation
bool valid = Double.TryParse(txtMaxPriceFilter.Text, out tmp); //check value is valid
// instantiate class
clsStockCollection Stock = new clsStockCollection();
if (valid == false)
{
lblError.Text = "Invalid filter entered."; // error message
}
else if (tmp > 10000 || tmp < 0)
{
lblError.Text = "Invalid filter. Must be between 0 and 10000."; // another error
}
else
{
// Writing comments for the exact same code over and over is raising my blood pressure
// so I'm not going to anymore
// you know the drill by now
Stock.FilterByMaxPrice(Convert.ToDouble(txtMaxPriceFilter.Text));
lstStockList.DataSource = Stock.StockList;
lstStockList.DataValueField = "productId";
lstStockList.DataTextField = "productName";
lstStockList.DataBind();
}
}
public void FilterByMaxPriceDataFound()
{
clsStockCollection FilteredStock = new clsStockCollection(); //instantiate class
// outcome bool
Boolean OK = true;
// should not normally be possible for an item to be free
// but a test record should be created with a price of 0.00 to test this method
FilteredStock.FilterByMaxPrice(0.00);
// should be exactly 1 result
if (FilteredStock.Count == 1)
{
// if doesn't match the specific name, change bool to false
if (FilteredStock.StockList[0].productName != "TESTITEM-IGNORE")
{
OK = false;
}
}
else
{
OK = false; // if count 0 also make it false
}
Assert.IsTrue(OK);
}
public void FilterByMaxPriceNoneFound()
{
clsStockCollection FilteredStock = new clsStockCollection(); //instantiate class
// price cannot be free so none should be found
FilteredStock.FilterByMaxPrice(-1);
// should be no records
Assert.AreEqual(0, FilteredStock.Count);
}
public void FilterByMaxPriceOK()
{
clsStockCollection AllStock = new clsStockCollection(); //instantiate class
clsStockCollection FilteredStock = new clsStockCollection(); //instantiate class again
// invoke method
FilteredStock.FilterByMaxPrice(10000);
// should be equal
Assert.AreEqual(AllStock.Count, FilteredStock.Count);
}
protected void btnClear_Click(object sender, EventArgs e)
{
// instantiate class
clsStockCollection Stock = new clsStockCollection();
Stock.FilterByMaxPrice(10000);
txtMaxPriceFilter.Text = "";
lstStockList.DataSource = Stock.StockList;
lstStockList.DataValueField = "productId";
lstStockList.DataTextField = "productName";
lstStockList.DataBind();
}