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      <title>Define filters overview</title>
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      <div class="title_topic4" id="xps10_pagetitle">Define filters overview</div>
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      <p class="para_topic">Use <b class="uiTerm">Define Filter</b> to choose, create and modify list display filters. A list filter controls which entries are included in the navigator display. Without an active filter, all entries display. With an active filter, only entries that pass the filter condition display. The <b class="uiTerm">Display Filter</b> dialog box lists all filters defined in the Wiring configuration file and those that you have interactively.
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      <p class="para_topic"><b class="uiTerm">List Filters</b> are accessed through the <b class="uiTerm">List Properties</b> dialog box. In the <b class="uiTerm">Connection or Component Navigator</b>, choose the right&ndash;click menu <b class="uiTerm">Properties</b> button. From the <b class="uiTerm">Properties</b> dialog box choose <b class="uiTerm">Edit Display Filter</b>. The <b class="uiTerm">Define Filter</b> dialog box is presented.
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      <p class="para_topic">A filter has a name and a condition. The condition may include the names of other filters to form a compound filter. For example, there are three filter names; ROUTED, GROUND, and GROUND_ROUTED. The condition for the filter named ROUTED may be Routed = A (meaning that an entry must have a box titled <b class="uiTerm">Routed</b> with a value of A to pass this condition). The condition for the filter named GROUND may be Signal = Ground (has box named <b class="uiTerm">Signal</b> with value Ground). The filter named GROUND_ROUTED may have a condition that specifies that both the ROUTED filter condition must be met and the GROUND condition must be met (ground wires that are routed). This condition is defined as ROUTED AND GROUND.
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               <p class="para_td">Filter Selection</p>
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               <p class="para_td">Select a filter from the list of filters shown and choose <b class="uiTerm">OK</b>. The selected filter applies to the <b class="uiTerm">Route List</b>. When you return to the <b class="uiTerm">Properties</b> menu you will see the selected filter name in the <b class="uiTerm">Display Filter</b> label. If you want to display the compliment of the set of entries that pass the filter, turn on <b class="uiTerm">Negate Filter</b> and then choose <b class="uiTerm">OK</b>.
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               <p class="para_td">Filter Name</p>
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               <p class="para_td">Displays the name of the currently selected filter. When defining a new filter, type the name of the new filter here.</p>
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               <p class="para_td">Set Operation</p>
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               <p class="para_td">Three buttons display to help you define a compound condition for a new filter. Choose one of the buttons to insert a logical operator into the condition you are defining. The buttons are defined as follows:</p>
               <p class="para_td"><img align="bottom" src="graphics/define1_new.gif" border="0"> Inserts the AND operator (both conditions must be met).
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               <p class="para_td"><img align="bottom" src="graphics/define2_new.gif" border="0"> Inserts the OR operator (at least one of the conditions must be met).
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               <p class="para_td"><img align="bottom" src="graphics/define3_new.gif" border="0"> Inserts the NOT operator (the condition following the operator must not be true).
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               <p class="para_td">Condition</p>
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               <p class="para_td">Enter the condition of the filter you are defining.</p>
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               <p class="para_td"><b class="uiTerm">List</b></p>
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               <p class="para_td">List the display formats with their conditions to the <b class="uiTerm">Information Window</b>.
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               <p class="para_td"><b class="uiTerm">Delete</b></p>
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               <p class="para_td">Delete the currently selected <b class="uiTerm">Display Filter(s)</b>.
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               <p class="para_td"><b class="uiTerm">Import</b></p>
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               <p class="para_td">Import all the display filters defined in a filter file (.flt) that you select from the <b class="uiTerm">File Selection</b> dialog box.
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               <p class="para_td"><b class="uiTerm">Export</b></p>
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               <p class="para_td">Export the currently selected display filter to a filter file (.flt) that you select from the <b class="uiTerm">File Selection</b> dialog box.
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