In my app, I don't understand how do handle system.format Exception. See below code
public Harvest_Project(XmlNode node)
{
this._node = node;
this._name = node.SelectSingleNode("name").InnerText;
this._created_at = storeTime(node.SelectSingleNode("created-at").InnerText);
this._updated_at = storeTime(node.SelectSingleNode("updated-at").InnerText);
this._over_budget_notified_at = storeTime(node.SelectSingleNode("over-budget-notified-at").InnerText);
this._latest_record_at = storeTime(node.SelectSingleNode("hint-latest-record-at").InnerText);
this._earliest_record_at = storeTime(node.SelectSingleNode("hint-earliest-record-at").InnerText);
this._billable = bool.Parse(node.SelectSingleNode("billable").InnerText);
try
{
this._id = Convert.ToInt32(node.SelectSingleNode("id").InnerText);
this._client_id = Convert.ToInt32(node.SelectSingleNode("client-id").InnerText);
this._budget = float.Parse(node.SelectSingleNode("budget").InnerText);
this._fees = Convert.ToInt32(getXmlNode("fees", node));
}
catch (FormatException e)
{
Console.WriteLine();
}
catch (OverflowException e)
{
Console.WriteLine("The number cannot fit in an Int32.");
}
this._code = node.SelectSingleNode("code").InnerText;
this._notes = node.SelectSingleNode("notes").InnerText;
}
Here in, try and catch blocks, all the nodes takes int values but, as _fees takes "0" value. It's showing me format exception. I just want my nodes doesn't show empty string. I want to handle this exception. That means, it should not throw exception at line "this._fees = Convert.ToInt32(getXmlNode("fees", node));" because it's returning int value which I want.
How could I achieve that?
You can avoid control-flow programming with try/catch mechanisms generally by using
TryX
methods; in your case,int.TryParse
, such that: