/// <summary>
/// 合并列标题
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="mdgv"></param>
public static void MergeHeaders <T>(this MergeDataGridView mdgv)
{
var lastSum = 0;
for (var i = 0; i < typeof(T).GetProperties().Length; i++)
{
var p = typeof(T).GetProperties()[i];
var spanNum = GetSpan(p);
mdgv.AddSpanHeader(GetDcrp(p), lastSum, spanNum);
lastSum += spanNum;
}
}