1. Visio属性值的转换问题 做过Visio开发的人知道,Visio中的属性值也就是Cell.Formula的值通常包含两对双引号的(如""XX""), 如果要将属性的值转换正常的字符串值,那么需要去除双引号。因此从Visio的Cell的Formula值中得到的字符串需要经过下面方法处理一下:
public static string FormulaStringToString(string formula)
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{
const string OneQuote = "\"";
const string TwoQuotes = "\"\"";
string convertedFormula = "";
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try
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{
convertedFormula = formula;
if (convertedFormula.StartsWith(OneQuote) && convertedFormula.EndsWith(OneQuote))
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{
convertedFormula = convertedFormula.Substring(1, (convertedFormula.Length - 2));
convertedFormula = convertedFormula.Replace(TwoQuotes, OneQuote);
}
}
catch (Exception err)
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{
convertedFormula = "";
}
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return convertedFormula;
}如果是写入到Visio的Cell的Formula中,那么要经过反过程,如下所示:
public static string StringToFormulaForString(string input)
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{
const string quote = "\"";
string result = "";
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if (input == null)
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{
return null;
}
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result = input.Replace(quote, (quote + quote));
result = quote + result + quote;
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return result;
} 2、获取指定形状指定Cell的值。除了方法1,还有下面一种方法可以获取Cell的Value值。这种方法比使用Formula获取字符串的方式要好,是因为在Visio2007中下拉列表“资产归属”.对应的Cell的Value可能是INDEX(0,Prop.资产归属.Format),但是如果使用下面的方法就可以正常获取到它具体的值了。
public static string GetShapeCellValue(Shape shapeTarget, string strCellType)
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{
const string CUST_PROP_PREFIX = "Prop.";
string shapeCellValue = string.Empty;
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if (shapeTarget.get_CellExistsU(CUST_PROP_PREFIX + strCellType, (short)VisExistsFlags.visExistsAnywhere) != 0)
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{
shapeCellValue = FormulaStringToString(shapeTarget.get_CellsU(CUST_PROP_PREFIX + strCellType).get_ResultStr(VisUnitCodes.visNoCast));
}
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return shapeCellValue;
} 3、给指定的Shape赋值。方法2是读取,当然还需要写入到指定Shape,指定Cell的值
public static bool SetShapeCellValue(Shape shapeTarget, string strCellType, string cellValue)
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{
const string CUST_PROP_PREFIX = "Prop.";
bool breturn = false;
if (shapeTarget.get_CellExistsU(CUST_PROP_PREFIX + strCellType, (short)VisExistsFlags.visExistsAnywhere) != 0)
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{
shapeTarget.get_CellsU(CUST_PROP_PREFIX + strCellType + ".Value").Formula = StringToFormulaForString(cellValue);
}
return true;
} 4、判断形状某个属性是否存在。有时候在做一些操作前,需要判断某个属性是否存在,以免访问指定的Cell不存在而抛出异常。
public static bool ShapeCellExist(Shape shapeTarget, string strCellType)
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{
const string CUST_PROP_PREFIX = "Prop.";
bool breturn = false;
if (shapeTarget.get_CellExistsU(CUST_PROP_PREFIX + strCellType, (short)VisExistsFlags.visExistsAnywhere) != 0)
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{
breturn = true;
}
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return breturn;
} 5、取当前操作属性所在的行。Cell的行号有时候非常重要,因此有必要提供一个函数获取对应Cell在ShapeData中的行号。
public static int GetCustomPropRow(Shape shapeTarget, string propName)
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{
const string CUST_PROP_PREFIX = "Prop.";
int intCustomRow = -1;
if (shapeTarget.get_CellExistsU(CUST_PROP_PREFIX + propName, (short)VisExistsFlags.visExistsAnywhere) != 0)
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{
intCustomRow = shapeTarget.get_CellsRowIndexU(CUST_PROP_PREFIX + propName);
}
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return intCustomRow; 6、判断Visio图纸上是否有形状图元存在。如果图纸上没有形状图元,你进行操作的时候可能会抛出“请求被禁用”的异常,因此可以操作前先判断有设备在图纸上为妙。
public static bool HasShapeInWindow(Window window)
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{
bool result = false;
try
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{
window.SelectAll();
result = (window.Selection.Count > 0);
window.DeselectAll();
}
catch
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{ ;}
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return result;
} 7、其他的一些功能设置
//Visio2007的形状窗口中去除搜索形状功能
VisApplication.Settings.ShowShapeSearchPane = false;
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Visio2003的ShowShapeSearchPane实现方式#region Visio2003的ShowShapeSearchPane实现方式
//Window searchWindow = wndVisio.Windows.get_ItemFromID(Convert.ToInt16(VisWinTypes.visWinIDShapeSearch));
//if (searchWindow != null)
//{
// searchWindow.Visible = false;
//}
#endregion
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//屏蔽Visio2007中的动态连接的功能(默认有)
VisApplication.Settings.EnableAutoConnect = false;
VisApplication.Settings.StencilBackgroundColor = 10070188;8、Name和NameU属性的差别
Visio中很多属性都有一个同名+U的属性名称,一般情况下最好使用这个名称如NameU,因此这个是一个唯一的名字,有时候你会发现Name相同,但他们就是不一样,因为他们的NameU名称不一样的。
9、遇到不明白的操作或者属性,多用Visio文档的宏记录功能,然后对VBA代码进行分析和调试。