barcode library c# Using Launch Conditions in Font

Draw Code 39 in Font Using Launch Conditions

Using Launch Conditions
Code 39 Full ASCII Generation In None
Using Barcode printer for Font Control to generate, create Code-39 image in Font applications.
www.OnBarcode.com
Printing Code 128 In None
Using Barcode generation for Font Control to generate, create Code 128 image in Font applications.
www.OnBarcode.com
Launch conditions allow you to specify certain environmental conditions that must be satisfied before an installation can continue, or to locate a specific value that can subsequently be used within the installation process. For instance, you could vary the installation procedure according to the value of a particular Registry key already set on the destination computer, or you could change the installation process (or stop it altogether) if a certain file is missing. You can add or modify launch conditions using unsurprisingly the Launch Conditions Editor, shown in Figure 13-20.
Create UPC Code In None
Using Barcode generator for Font Control to generate, create UPC A image in Font applications.
www.OnBarcode.com
Create EAN128 In None
Using Barcode printer for Font Control to generate, create EAN128 image in Font applications.
www.OnBarcode.com
Figure 13-20. The Launch Conditions Editor The Launch Conditions Editor is divided into two sections: Search Target Machine and Launch Conditions, which work together to ensure that a given launch condition is met. The default conditions for Web Setup Projects is to check for the presence of IIS version 4 or higher and to check for the .NET runtime.
Encode Barcode In None
Using Barcode printer for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Barcode Creator In None
Using Barcode generation for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
CHAPTER 13 PUBLISHING WEB APPLICATIONS IN .NET
Create PDF-417 2d Barcode In None
Using Barcode creator for Font Control to generate, create PDF417 image in Font applications.
www.OnBarcode.com
RoyalMail4SCC Creator In None
Using Barcode drawer for Font Control to generate, create RM4SCC image in Font applications.
www.OnBarcode.com
Setting Up a Search
Paint Code 3/9 In Java
Using Barcode printer for Java Control to generate, create Code39 image in Java applications.
www.OnBarcode.com
Recognize Code 39 In Visual Basic .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Using the Search Target Machine section, you can set up a search for a Registry entry, a file, or a Windows component. The result of the search can then be used in two ways: As a value to be used elsewhere in the installation In a test that must be satisfied in order for the installation to continue Figure 13-21 shows the properties for the Search for IIS entry under Search Target Machine. Property denotes the name of the condition, which will be set to the value of the Registry entry specified by the MajorVersion entry in the RegKey property. This gives excellent flexibility, but does require a certain amount of knowledge about the organization of the Windows Registry.
Creating Barcode In Java
Using Barcode drawer for BIRT reports Control to generate, create Barcode image in BIRT applications.
www.OnBarcode.com
Linear Generation In .NET Framework
Using Barcode drawer for ASP.NET Control to generate, create Linear 1D Barcode image in ASP.NET applications.
www.OnBarcode.com
Figure 13-21. Properties for the Search for IIS entry under Search Target Machine The Root property (vsdrrHKLM) that is specified informs the installer to start looking under the HKey_Local_Machine (HKLM) node within the root of the Registry. You would need to supply alternative values to search within other root nodes, such as the current user s settings (HKey_Current_User). Try It Out: Search for SQL Server or MSDE Installations In our installer, we need to attach a database to a SQL Server or MSDE running on the local machine. This makes for an excellent opportunity to check for that condition by searching the Registry. 1. Right-click the Search Target Machine and select Add Registry Search. Rename the entry to Search for MSSQL. 2. Set the following properties on the entry: (Name): Search for MSSQL Property: MSSQL RegKey: SOFTWARE\Microsoft\Microsoft SQL Server Root: vsdrrHKLM Value: InstalledInstances
Encode Barcode In Visual Studio .NET
Using Barcode creator for VS .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
Paint Barcode In .NET Framework
Using Barcode creator for .NET framework Control to generate, create Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
CHAPTER 13 PUBLISHING WEB APPLICATIONS IN .NET
Reading EAN13 In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
EAN 13 Recognizer In .NET Framework
Using Barcode scanner for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
How It Works When the MSI file launches, the Registry will be searched for the value you specified. The key you re looking at is created by both SQL Server and MSDE, and specifies the different installations that exist on the machine. By assigning this search the property name MSSQL, you can refer to it later, as you ll do in the next exercise. Now that you know how to perform a search, you need to know how to use the result to change the installer behavior. That s the role of the Launch Conditions node of the Launch Conditions Editor.
ANSI/AIM Code 128 Drawer In Objective-C
Using Barcode printer for iPhone Control to generate, create Code-128 image in iPhone applications.
www.OnBarcode.com
Create GS1 - 13 In Objective-C
Using Barcode generator for iPad Control to generate, create EAN 13 image in iPad applications.
www.OnBarcode.com
Setting Up the Launch Condition
UPCA Creation In None
Using Barcode generation for Microsoft Excel Control to generate, create UPC Symbol image in Excel applications.
www.OnBarcode.com
EAN 128 Generator In None
Using Barcode creator for Online Control to generate, create UCC-128 image in Online applications.
www.OnBarcode.com
Searches for items on the target machine are always performed before the processing of the launch conditions in this section, so any properties set by searches can be used here. If you again check the properties of the IIS Condition entry, you ll see the IISVERSION property in use, as shown in Figure 13-22.
Figure 13-22. The IIS Condition properties All launch conditions must evaluate to True if the installation is to take place, so the #4 in Figure 13-22 represents the minimum version number of IIS required in order to install the web application. The # is used to denote that the value stored in the Registry is a hexadecimal value, and that a conversion is required when performing a comparison. If the condition is simply a reference to a search value and the value is not found, it evaluates to False. The Message property indicates the message to display if the condition is not met. As used by this condition, it s a message stored in a resource and referenced by placing the name of it within square brackets, such as the standard IIS message [VSDIISMSG]. You can use a literal string also. Try It Out: Set a Launch Condition to Check for SQL Server or MSDE Let s add a condition that ensures SQL Server or MSDE is installed, using the Registry search you created in the previous section. 1. Right-click Launch Conditions in the editor, choose Add Launch Condition, and give it the name MSSQL Condition.
Copyright © OnBarcode.com . All rights reserved.