c# qr code encoder Part 4: Storage and File Management in C#

Generate QR Code in C# Part 4: Storage and File Management

Part 4: Storage and File Management
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Managing and Finding Files
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Inspecting and Setting File Properties
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The properties dialog box for a file or folder (or a selection of files or folders) provides a wealth of useful information about the selected item or items. To display this information, right-click the item and choose Properties from the shortcut menu. The kind of information you will see depends on the type of item you have selected. Figure 17-2 shows the General tab of the properties dialog box for the Microsoft Word document used to generate this chapter (while the chapter was still under construction).
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Figure 17-2. The General tab of a document s properties dialog box reports file size, creation date, attributes, and parent application.
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As you can see, this part of the properties dialog box provides information about the file s size, location, dates, parent application, and other attributes. There s even a button you can use to change the parent application (Change), should you need to do that. For other and simpler ways to change the association between a document and an application, see Changing the Application Associated with a File Type, page 602. Most of the properties shown on the General tab are read-only (that is, they re set by the operating system and can t be changed by you), and you can get most of this information easily enough in Windows Explorer, without displaying the properties dialog box. The Summary and Custom tabs, for documents whose properties dialog box includes these tabs, provide less readily available details and include properties whose value you can set yourself. Figure 17-3 shows the Advanced view of the Summary tab and Figure 17-4 shows the Custom tab for our Word document.
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Part 4: Storage and File Management
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Figure 17-3.
Some of the properties on the Summary tab can be modified at will.
Note If the Summary tab for a properties dialog box looks significantly different from Figure 17-3 and you see an Advanced button, click Advanced. The Advanced presentation of the Summary tab provides access to more properties than does the Simple presentation. It might not be obvious from looking at a Summary tab which properties are read-only and which can be set or changed by you. If you re not sure about a property, click on it in the Value column. If the property can be set, an edit box will appear. As Figure 17-4 shows, the Custom tab lets you create your own properties and set their values. The Name list, shown open in Figure 17-4, enumerates suggested custom properties. But you can type whatever name you want in the Name box. After you provide a value for the item, the Add button becomes available for you to add the property to the file. Applications that provide user-editable properties, such as Word, provide access to those properties within their own menu systems. In Word, for example, you can choose File, Properties to set the value of properties, such as Title, Subject, and Category, for the current document. But the properties dialog box provides another route to those properties, one that is worth knowing about from a file management perspective. Tip Use Indexing Service to locate files by property values You can use Indexing Service and its query language to look for files on the basis of property values. For example, you can search for all files whose Category property has the value Manuscript. For more information, see Using Indexing Service and Query Language, page 646.
Part 4: Storage and File Management
17
Managing and Finding Files
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Figure 17-4.
You can use the Custom tab to create your own properties and set their values.
Using Details View to See and Compare Properties of Many Files
The most important properties available via the properties dialog box can also be displayed as columns in Windows Explorer s Details view. Details view also lets you sort files on the basis of their property values from largest to smallest, oldest to newest, and so on.
For more information about customizing Details view, see Customizing Details View, page 586.
Creating and Customizing Document Shortcuts
Document shortcuts let you open documents from places other than where those documents are stored from your desktop, for example. (We don t advocate storing documents on the desktop, but using the desktop for shortcuts to documents you re currently involved with is not a bad idea provided you get rid of the shortcuts when you no longer need them, and provided you don t have security concerns about others who might have access to your computer.) The simplest way to create a desktop shortcut to a document is as follows:
1 Display the document in Windows Explorer. (Windows Explorer should not be maximized.) 2 Hold down the Alt key and drag the document to your desktop. 3 Rename the shortcut, removing the words Shortcut to (an optional step). The small arrow at the lower left of the icon indicates that you re looking at a shortcut.
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