06 2016 档案
摘要：Draw a specified graphic on the map using the supplied colors.
阅读全文
摘要：PIVOT 用于将列值旋转为列名（即行转列），在 SQL Server 2000可以用聚合函数配合CASE语句实现 PIVOT 的一般语法是：PIVOT(聚合函数(列) FOR 列 in (…) )AS P 注意：PIVOT、UNPIVOT是SQL Server 2005 的语法，使用需修改数据库兼
阅读全文
摘要：Geoprocessor gp = new Geoprocessor(); gp.OverwriteOutput = true; IFeatureLayer inputfeaturelayer = pMap.get_Layer(0) as IFeatureLayer; IFeatureLayer c
阅读全文
摘要：打开access数据库，在左边对象栏里有个查询，点在设计视图创建查询，点关闭，然后你可以看到左上角有个写着SQL的按钮，点击就可以输入SQL了
阅读全文
摘要：System.Data.OleDb; //导入名空间 private Button1_Click(object sender,System.EventArgs e) { if(TextBox1.Text.ToString().Trim()!=""||TextBox1.Text.ToString().Trim()!=String.Empty()) { OleDbCo...
阅读全文
摘要：SqlConnection conn = new SqlConnection("uid=sa;pwd=*;database=login;server=server"); SqlCommand myCom = conn.CreateCommand(); myCom.CommandType = CommandType.Text; if(txtB_user.Text.Leng...
阅读全文
摘要：string password = txtPassword.Text.ToString(); string name = txtUserName.SelectedItem.ToString(); string connecitonString = "server=(local);" + "intetrated securi...
阅读全文
摘要：ISpatialReferenceFactory3 spatialReferenceFactory = new SpatialReferenceEnvironmentClass(); //geometryDefEdit.SpatialReference_2 = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSR...
阅读全文
摘要：public ESRI.ArcGIS.Geodatabase.IFeatureClass CreateFeatureClassForLine(ESRI.ArcGIS.Geodatabase.IWorkspace2 workspace, ESRI.ArcGIS.Geodatabase.IFeatureDataset featureDataset, System.String fea...
阅读全文
摘要：单独生成要素类： 在要素集中添加要素类： 创建不同类型的要素类：
阅读全文
摘要：public IFeatureDataset CreateFeatureDataset_Example(IWorkspace workspace, string fdsName, ISpatialReference fdsSR) { IFeatureWorkspace featureWorkspace = (IFeatureWorkspac...
阅读全文
摘要：http://blog.csdn.net/ml5271169588/article/details/44220055
阅读全文
摘要：public ESRI.ArcGIS.Geodatabase.IFeatureClass CreateFeatureClass(ESRI.ArcGIS.Geodatabase.IWorkspace2 workspace, ESRI.ArcGIS.Geodatabase.IFeatureDataset
阅读全文
