在DataGridView中浏览shp图层的属性表[.dbf文件]

        每次浏览shp图层的属性表时,总是使用ArcMap打开,比较麻烦。虽然网络中有小巧的DBF数据库浏览工具,也还是觉得有点大材小用。

        下面的C#代码用来读取shp图层的属性表,并在DataGridView中显示,在VS 2005中调试通过,代码很简单。

OpenFileDialog ofdDBF  =   new  OpenFileDialog();
ofdDBF.Filter 
=   " 属性表文件(*.dbf)|*.dbf " ;
if  (ofdDBF.ShowDialog()  ==  DialogResult.OK)
{
    
string  OpenFileName  =  ofdDBF.FileName.Trim();
    
string  dbfFilePath  =  Path.GetDirectoryName(OpenFileName);
    
string  dbfFileName  =  Path.GetFileName(OpenFileName);

    IWorkspaceFactory pWorkspaceFactory 
=   new  ShapefileWorkspaceFactoryClass();
    IWorkspace pWorkspace 
=  pWorkspaceFactory.OpenFromFile(dbfFilePath,  0 );
    IFeatureWorkspace pFeatureWorkspace 
=  pWorkspace  as  IFeatureWorkspace;
    
if  (pFeatureWorkspace  !=   null )
    {
        IFeatureClass pFeatureClass 
=  pFeatureWorkspace.OpenFeatureClass(dbfFileName);
        
if  (pFeatureClass  !=   null )
        {
            DataTable dt 
=   new  DataTable();
            DataColumn dc 
=   null ;

            
for  ( int  i  =   0 ; i  <  pFeatureClass.Fields.FieldCount; i ++ )
            {
                dc 
=   new  DataColumn(pFeatureClass.Fields.get_Field(i).Name);
                dt.Columns.Add(dc);
            }

            IFeatureCursor pFeatureCursor 
=  pFeatureClass.Search( null false );
            IFeature pFeature 
=  pFeatureCursor.NextFeature();
            DataRow dr 
=   null ;
            
while  (pFeature  !=   null )
            {
                dr 
=  dt.NewRow();
                
for  ( int  j  =   0 ; j  <  pFeatureClass.Fields.FieldCount; j ++ )
                {
                    
if  (pFeatureClass.FindField(pFeatureClass.ShapeFieldName)  ==  j)
                    {
                        dr[j] 
=  pFeatureClass.ShapeType.ToString();
                    }
                    
else
                    {
                        dr[j] 
=  pFeature.get_Value(j).ToString();
                    }
                }
                dt.Rows.Add(dr);
                pFeature 
=  pFeatureCursor.NextFeature();
            }
            dataGridView1.DataSource 
=  dt;
        }
    }
}

这样就再也不用每次都费力的打开ArcMap了,用这个小工具即可。
在DataGridView中浏览shp图层的属性表[.dbf文件]_第1张图片

转载于:https://www.cnblogs.com/GISCafe/archive/2008/05/22/1206395.html

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