/// <summary>
/// 判断指定优惠设置是否与现有设置存在交叉，true：有交叉；false：没有交叉
/// </summary>
/// <returns>Return a object of System.Boolean</returns>
private bool TryParseCross(List <RangeValueItem> list, RangeValueItem info)
{
if (list == null || list.Count <= 0)
{
return(false);
}
bool state = false;
foreach (RangeValueItem item in list)
{
if (info.LowerValue >= item.LowerValue && info.LowerValue < item.UpperValue)
{
state = true;
break;
}
if (info.UpperValue > item.LowerValue && info.UpperValue <= item.UpperValue)
{
state = true;
break;
}
}
return(state);
}
private void AddItem(RangeValueItem item)
{
//1. validation
if (item == null)
{
return;
}
RowStyle rs = new RowStyle(SizeType.Absolute, 30F);
tlpItems.RowStyles.Insert(this._RowIndex, rs);
var txt1 = this.CreateTextBox(item.LowerValue.ToString("F2"));
this._TxtLowerLimit.Add(txt1);
tlpItems.Controls.Add(txt1, 0, this._RowIndex);
var txt2 = this.CreateTextBox(item.UpperValue.ToString("F2"));
this._TxtUpperLimit.Add(txt2);
tlpItems.Controls.Add(txt2, 1, this._RowIndex);
var txt3 = this.CreateTextBox(item.Value.ToString("F2"));
this._TxtValue.Add(txt3);
tlpItems.Controls.Add(txt3, 2, this._RowIndex);
////button
var btn = this.CreateDelLinkBtn(this._RowIndex);
tlpItems.Controls.Add(btn, 3, this._RowIndex);
////Scroll
tlpItems.RowCount++;
tlpItems.Width -= 1;
tlpItems.Refresh();
this._RowIndex++;
}
/// <summary>
/// 验证读取优惠设置信息,true:验证成功，输入合法；false：验证失败，输入不合法
/// </summary>
/// <param name="message">The message.</param>
/// <param name="list">The list.</param>
/// <returns>Return a object of System.Boolean</returns>
private bool TryParseInput(out string message, List <RangeValueItem> list)
{
message = string.Empty;
int len = this._TxtValue.Count();
if (len <= 0)
{
message = "不能保存空数据！";
return(false);
}
decimal lower;
decimal upper;
decimal value;
RangeValueItem item;
for (int i = 0; i < len; i++)
{
if (this._TxtLowerLimit[i] == null || this._TxtLowerLimit[i].Visible == false)
{
continue;
}
////上限必须大于下限；不可有范围交叉
if (decimal.TryParse(this._TxtLowerLimit[i].Text.Trim(), out lower) &&
decimal.TryParse(this._TxtUpperLimit[i].Text.Trim(), out upper) &&
decimal.TryParse(this._TxtValue[i].Text.Trim(), out value)
)
{
item = new RangeValueItem();
item.LowerValue = lower;
item.UpperValue = upper;
item.Value = value;
//判断交叉
if (this.TryParseCross(list, item))
{
message = "范围设置与前面的范围设置存在交叉，请重新设置！";
this._TxtLowerLimit[i].Focus();
this._TxtLowerLimit[i].SelectAll();
return(false);
}
else
{
list.Add(item);
}
}
else
{
this._TxtLowerLimit[i].Focus();
this._TxtLowerLimit[i].SelectAll();
string temp = message == string.Empty ? "上限必须大于下限，且输入必须为有效的数值类型" : message;
message = "输入有误！" + temp;
return(false);
}
}
return(true);
}