private void FillValue()//初始化DataGridView的部分移动到了此函数中
{
DataTable table = new DataTable();
//增加ID列
table.Columns.Add("ID");
//增加其他列 用以记录所有字段
for (int i = 0; i < Layer.Fields.Count; i++)
{
table.Columns.Add(Layer.Fields[i].name);
}
//增加行 填充属性值
for (int i = 0; i < Layer.FeatureCount(); i++)
{
DataRow r = table.NewRow();
r.BeginEdit();
r[0] = Layer.GetFeature(i).ID;
for (int j = 0; j < Layer.Fields.Count; j++)
{
r[j + 1] = Layer.GetFeature(i).getAttribute(j);
}
r.EndEdit();
table.Rows.Add(r);
//dataGridView1.Rows.Add();
////增加ID值
//dataGridView1.Rows[i].Cells[0].Value = Layer.GetFeature(i).ID;
////增加其他属性值
//for (int j = 0; j < Layer.Fields.Count; j++)
//{
// dataGridView1.Rows[i].Cells[j+1].Value = Layer.GetFeature(i).getAttribute(j);
//}
////确定每行的选择状态
//dataGridView1.Rows[i].Selected = Layer.GetFeature(i).Selected;
}
//指定数据源
dataGridView1.DataSource = table;
//更新选择状态
for (int i = 0; i < Layer.FeatureCount(); i++)
{
dataGridView1.Rows[i].Selected = Layer.GetFeature(i).Selected;
}
}
static void WriteFileHeader(GISLayer layer, BinaryWriter bw)//bw是与文件相连的文件写入工具
{
MyFileHeader mfh = new MyFileHeader();
mfh.MinX = layer.Extent.getMinX();
mfh.MinY = layer.Extent.getMinY();
mfh.MaxX = layer.Extent.getMaxX();
mfh.MaxY = layer.Extent.getMaxY();
mfh.FeatureCount = layer.FeatureCount();
mfh.Shapetype = (int)(layer.ShapeType);
mfh.FieldCount = layer.Fields.Count;
bw.Write(GISTools.ToBytes(mfh));
}
//输出图层所有GISFeatrue
static void WriteFeatures(GISLayer layer, BinaryWriter bw)
{
for (int featureindex = 0; featureindex < layer.FeatureCount(); featureindex++)
{
GISFeature feature = layer.GetFeature(featureindex);
if (layer.ShapeType == SHAPETYPE.point)
{
((GISPoint)feature.spatialpart).centroid.WriteVertex(bw);
}
else if (layer.ShapeType == SHAPETYPE.line)
{
GISLine line = (GISLine)(feature.spatialpart);
WriteMultipleVertexes(line.Vertexes, bw);
}
else if (layer.ShapeType == SHAPETYPE.polygon)
{
GISPolygon polygon = (GISPolygon)(feature.spatialpart);
WriteMultipleVertexes(polygon.Vertexes, bw);
}
WriteAttributes(feature.attributepart, bw);
}
}
private void FillValue()//初始化DataGridView的部分移动到了此函数中
{
//增加ID列
dataGridView1.Columns.Add("ID", "ID");
//增加其他列 用以记录所有字段
for (int i = 0; i < Layer.Fields.Count; i++)
{
dataGridView1.Columns.Add(Layer.Fields[i].name, Layer.Fields[i].name);
}
//增加行
for (int i = 0; i < Layer.FeatureCount(); i++)
{
dataGridView1.Rows.Add();
//增加ID值
dataGridView1.Rows[i].Cells[0].Value = Layer.GetFeature(i).ID;
//增加其他属性值
for (int j = 0; j < Layer.Fields.Count; j++)
{
dataGridView1.Rows[i].Cells[j + 1].Value = Layer.GetFeature(i).getAttribute(j);
}
//确定每行的选择状态
dataGridView1.Rows[i].Selected = Layer.GetFeature(i).Selected;
}
}