获取sde 工作空间 propertys

最新推荐文章于 2022-11-03 16:59:53 发布

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最新推荐文章于 2022-11-03 16:59:53 发布

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原文链接：http://www.cnblogs.com/liwenqiang/p/4109528.html

本文介绍了一个用于检查和显示工作空间不同类型的属性的方法。通过两个示例演示了如何使用IWorkspaceProperties接口来获取如是否可以执行SQL及最大字段名长度等属性。

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// This example shows how to inspect and display different types of properties for a workspace.
public void DisplayWorkspaceProperties(IWorkspace workspace)

{

  // Cast the workspace to the IWorkspaceProperties interface.

  IWorkspaceProperties workspaceProperties = (IWorkspaceProperties)workspace;


  // Example #1: Check whether or not the workspace can execute SQL. The first step is to retrieve

  // the property.

  IWorkspaceProperty canExecuteSqlProperty = workspaceProperties.get_Property(esriWorkspacePropertyGroupType.esriWorkspacePropertyGroup,

    (int)esriWorkspacePropertyType.esriWorkspacePropCanExecuteSQL);


  // Now check whether the property is supported.

  if (canExecuteSqlProperty.IsSupported)

  {

    // If the property is supported, check its value. This property returns a boolean value.

    Boolean canExecuteSql = Convert.ToBoolean(canExecuteSqlProperty.PropertyValue);

    Console.WriteLine("Workspace can execute SQL: {0}", canExecuteSql);

  }

  else

  {
    // If the property is not supported, it's impossible to check its value.

    Console.WriteLine("esriWorkspacePropCanExecuteSQL is not supported by the workspace.");

  }


  // Example #2: Find the maximum field name length for the workspace.

  IWorkspaceProperty maxFieldNameLengthProperty = workspaceProperties.get_Property(esriWorkspacePropertyGroupType.esriWorkspaceTablePropertyGroup,

    (int)esriWorkspaceTablePropertyType.esriTablePropMaxFieldNameLength);


  // Now check whether the property is supported.

  if (maxFieldNameLengthProperty.IsSupported)

  {

    // If the property is supported, check its value. This property returns an integer value.

    int maxFieldNameLength = Convert.ToInt32(maxFieldNameLengthProperty.PropertyValue);

    Console.WriteLine("Maximum field name length: {0}", maxFieldNameLength);

  }

  else

  {
    // If the property is not supported, it's impossible to check its value.

    Console.WriteLine("esriTablePropMaxFieldNameLength is not supported by the workspace.");

  }

}