我有一个 Visio ER 图，想从实体中读取数据库属性（列、主键、外键、数据类型）信息。还想找到关联的父子表。如何使用 C# 以编程方式实现它？
我正在使用 Interop Visio 库，可以从 ER 图中读取页面和形状，但不知道 Visio 互操作中的哪些函数或方法可以让我从形状中获取属性信息。
下面是我正在使用的代码，我没有使用它获得任何属性。我的 ER 图只有两个实体，一个父表和一个子表。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Office.Interop.Visio;
namespace Visio_POC
{
public partial class Load_Visio : Form
{
static string strProperties = "";
public Load_Visio()
{
InitializeComponent();
string strFileName = "\\Visio_POC\\POC_Visio.vsd";
Microsoft.Office.Interop.Visio.Application vsApp = new Microsoft.Office.Interop.Visio.Application();
Microsoft.Office.Interop.Visio.Document docVisio = vsApp.Documents.Add(strFileName);
Page pgVisio = docVisio.Pages[1];
Shapes shpVisio = pgVisio.Shapes;
int intCnt = shpVisio.Count;
string[] strShapeText = new string[intCnt];
printProperties(pgVisio.Shapes);
txtProperties.Text = strProperties;
}
public static void printProperties(Shapes shapes)
{
// Look at each shape in the collection.
foreach (Shape shape in shapes)
{
// Use this index to look at each row in the properties
// section.
short iRow = (short) VisRowIndices.visRowFirst;
// While there are stil rows to look at.
while (shape.get_CellsSRCExists(
(short) VisSectionIndices.visSectionProp,
iRow,
(short) VisCellIndices.visCustPropsValue,
(short) 0) != 0)
{
// Get the label and value of the current property.
string label = shape.get_CellsSRC(
(short) VisSectionIndices.visSectionProp,
iRow,
(short) VisCellIndices.visCustPropsLabel
).get_ResultStr(VisUnitCodes.visNoCast);
string value = shape.get_CellsSRC(
(short) VisSectionIndices.visSectionProp,
iRow,
(short) VisCellIndices.visCustPropsValue
).get_ResultStr(VisUnitCodes.visNoCast);
// Print the results.
//Console.WriteLine(string.Format(
// "Shape={0} Label={1} Value={2}",
// shape.Name, label, value));
strProperties = strProperties + shape.Name + " - " + label + " - " + value;
// Move to the next row in the properties section.
iRow++;
}
// Now look at child shapes in the collection.
if (shape.Master == null && shape.Shapes.Count > 0)
printProperties(shape.Shapes);
}
}
}
}