利用C#在Word自動化中操作OLE控制項

因項目所需，採用WORD模板作為報表系統的一部分，需要使用C#操作WORD文檔，大部分的操作都是填充表格，難度也不是很大。但是有一份報表很特殊，WORD裡面需要包含ComboBox、CheckBox控制項，如下所示：

這裡關鍵的技術難題是找到OLE控制項，然後設定其某個屬性值，GOOGLE了半天，終於找到如下的代碼：

private static object FindControl(string name, Word._Document document)
        {
            try
            {
                foreach (Word.InlineShape shape in document.InlineShapes)
                {
                    if (shape.Type ==Word.WdInlineShapeType.wdInlineShapeOLEControlObject)
                    {
                        object oleControl = shape.OLEFormat.Object;
                        Type oleControlType = oleControl.GetType();
                        string oleControlName = (string)oleControlType.InvokeMember("Name",
                            System.Reflection.BindingFlags.GetProperty,null, oleControl, null);
                        if (String.Compare(oleControlName, name, true,System.Globalization.CultureInfo.InvariantCulture) == 0)
                        {
                            return oleControl;
                        }
                    }
                }

                foreach (Word.Shape shape in document.Shapes)
                {
                    if (shape.Type ==Microsoft.Office.Core.MsoShapeType.msoOLEControlObject)
                    {
                        object oleControl = shape.OLEFormat.Object;
                        Type oleControlType = oleControl.GetType();
                        string oleControlName = (string)oleControlType.InvokeMember("Name",
                            System.Reflection.BindingFlags.GetProperty,null, oleControl, null);
                        if (String.Compare(oleControlName, name, true,System.Globalization.CultureInfo.InvariantCulture) == 0)
                        {
                            return oleControl;
                        }
                    }
                }
            }
            catch
            {
                // Returns null if the control is not found.
            }
            return null;
        }

找到OLE控制項後，經過嘗試，發現設定其屬性時，應該如下調用：

oleControlType.InvokeMember("Value", System.Reflection.BindingFlags.SetProperty, null, oleControl, new object[] { "True" });