/// <summary>
/// 获取唯一值和相应数目
/// </summary>
/// <param name="fieldName">字段</param>
/// <returns></returns>
public UniqueValueAndCount GetUniqueValueAndCount(string fieldName)
{
//判断是否存在属性表
IUniqueValues uniqueValues = IsFloatRasterLayer()
? GetFloatValueAndCount(rasterLayer)
: GetTableValueAndCount(rasterLayer, fieldName);
//获取唯一值和相应数目
UniqueValueAndCount uniqueValueCount = new UniqueValueAndCount();
for (int i = 0; i < uniqueValues.Count; i++)
{
uniqueValueCount.AddValue(uniqueValues.UniqueValue[i]);
uniqueValueCount.AddCount(uniqueValues.UniqueCount[i]);
}
uniqueValueCount.UniqueValue.Sort();
return(uniqueValueCount);
}
/// <summary>
/// 添加数据到表格视图
/// </summary>
/// <param name="valAndCount">值和数目</param>
/// <param name="dgView">数据表格视图</param>
public static void AddDataToGridView(UniqueValueAndCount valAndCount, DataGridView dgView)
{
DataTable table = new DataTable();
table.Columns.Add("Value");
table.Columns.Add("Count");
for (int i = 0; i < valAndCount.UniqueValue.Count; i++)
{
DataRow dr = table.NewRow();
dr["Value"] = valAndCount.UniqueValue[i];
dr["Count"] = valAndCount.UniqueCount[i];
table.Rows.Add(dr);
}
dgView.DataSource = null;
dgView.DataSource = table;
dgView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
}
