1
我建立了一个程序,并且我按了一个按钮,程序崩溃了。 这里是按钮的代码:StackOverFlow在应用程序的开始点
_alRecord.WriteXml(@".\alRecord.xml", XmlWriteMode.WriteSchema);
调试运行返回计算器(位置被标记在评论),这里是整个代码:
private string alFile = @".\alRecord.xml";
public DataTable alRecord;
public DataTable _alRecord
{
get
{ //location of stackoverflow
if (_alRecord == null)
{
alRecord = new DataTable();
if (File.Exists(alFile))
{ _alRecord.ReadXml(alFile); }
else
{ InitDataTable2(_alRecord); }
}
return _alRecord;
}
}
private void InitDataTable2(DataTable table)
{
table.TableName = "AlTable";
table.Columns.Add("ID", typeof(int));
table.Columns.Add("sun", typeof(bool));
table.Columns.Add("mon", typeof(bool));
table.Columns.Add("tue", typeof(bool));
table.Columns.Add("wed", typeof(bool));
table.Columns.Add("thu", typeof(bool));
table.Columns.Add("fri", typeof(bool));
table.Columns.Add("sat", typeof(bool));
table.Columns.Add("doors", typeof(string));
table.Columns.Add("from1", typeof(DateTime));
table.Columns.Add("to1", typeof(DateTime));
table.Columns.Add("from2", typeof(DateTime));
table.Columns.Add("to1", typeof(DateTime));
for (int i = 0; i < 99; i++)
{
var row = alRecord.NewRow();
row["ID"] = i;
row["sun"] = false;
row["mon"] = false;
row["tue"] = false;
row["wed"] = false;
row["thu"] = false;
row["fri"] = false;
row["sat"] = false;
row["doors"] = "";
row["from1"] = "00:01";
row["to1"] = "23:59";
row["from2"] = "00:01";
row["to2"] = "23:59";
alRecord.Rows.Add(row);
}
}
private void alSave_Click(object sender, EventArgs e)
{
_alRecord.WriteXml(@".\alRecord.xml", XmlWriteMode.WriteSchema);
}
我会补充一点 - 有一个命名约定使得这一点更加明显是件好事。看起来海报有一个约定,但是它通常会做的倒退。下划线_usually表示一个私有成员变量,而CapitalizedFirstLetters通常用于属性。 – 2010-08-15 13:40:14
谢谢你们俩=) – 2010-08-15 13:43:15