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| <title>Creating a Single Association</title> | |
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| <h1 class="title topictitle1">Creating a Single Association</h1> | |
| <div class="body taskbody"><p class="shortdesc"/> | |
| <div class="section context" id="loio22be92df80da42cf982b9506e31d8ae8__context_N10014_N10011_N10001"><div class="tasklabel"><h2 class="sectiontitle tasklabel">Context</h2></div> | |
| <p class="p">To define single association proceed as follows:</p> | |
| </div><div class="tasklabel"><h2 class="sectiontitle tasklabel">Procedure</h2></div><ol class="ol steps" id="loio22be92df80da42cf982b9506e31d8ae8__steps_r1v_2gw_sp"><li class="li step stepexpand" id="loio22be92df80da42cf982b9506e31d8ae8__step_N10020_N1001D_N10011_N10001"><span class="ph cmd">Create entity types as detailed in the <a class="xref" href="Creating an Entity Type.html" title="This section guides you to create an Entity Type">Creating an Entity Type</a> section.</span></li> | |
| <li class="li step stepexpand" id="loio22be92df80da42cf982b9506e31d8ae8__step_N1002D_N1001D_N10011_N10001"><span class="ph cmd">Select the <span class="ph pname">Single</span> | |
| <img src="Single.png" alt="" style="width:40px;height:25px"/> | |
| menu under <span class="ph pname">Associations</span>.</span><div class="itemgroup stepresult">Once Single is selected and on moving the mouse pointer into the OData Model Editor, | |
| the mouse pointer changes its shape indicating that the association creation | |
| mode in active. <p class="p"><img src="SA1.png" alt="" style="width:304px;height:270px"/></p> | |
| </div></li> | |
| <li class="li step stepexpand" id="loio22be92df80da42cf982b9506e31d8ae8__step_N1004F_N1001D_N10011_N10001"><span class="ph cmd">Click in the source entity type shape to create an association and drag the | |
| mouse to the destination shape.</span> | |
| <p> </p> | |
| <img src="SA2.png" alt="" style="width:304px;height:228px"/> | |
| <p> </p> | |
| <div class="itemgroup stepresult">Once on the destination entity shape, left click the mouse to complete | |
| the creation of the association. <p class="p">The association is created and a dotted | |
| arrow line connects the shapes. </p> | |
| </div></li> | |
| <li class="li step stepexpand" id="loio22be92df80da42cf982b9506e31d8ae8__step_N10068_N1001D_N10011_N10001"><span class="ph cmd">Choose <img src="BDA2.png" alt="" style="width:40px;height:28px"/> in the | |
| Palette to come out of the association create mode.</span><ul class="ul choices" id="loio22be92df80da42cf982b9506e31d8ae8__choices_jtm_52c_yj"><li class="li choice">Press escape from the keyboard to come out of the association create mode. <p class="p"><img src="SA3.png" alt="" style="width:304px;height:228px"/></p> | |
| </li> | |
| </ul> | |
| <div class="note note" id="loio22be92df80da42cf982b9506e31d8ae8__note_N1008A_N10087_N10065_N1001D_N10011_N10001"><span class="notetitle">Note</span> A Navigation Property | |
| is automatically created for the new association. You can rename the | |
| navigation property by double clicking on it. Every navigation propery | |
| should have a unique name. </div> | |
| <p class="p">The association is created and an arrow with a singe head appears | |
| representing the single association. Also the cardinality is displayed on | |
| both ends of the arrow implying the relationship one-to-many (star sign | |
| represent many). </p> | |
| </li> | |
| <li class="li step stepexpand" id="loio22be92df80da42cf982b9506e31d8ae8__step_N10099_N1001D_N10011_N10001"><span class="ph cmd">On saving the project, the tree region displays the entity types, new | |
| association and the corresponding navigation property. | |
| <p></p> | |
| </span><img src="SA4.png" alt="Mountain View" style="width:604px;height:400px"/><p class="p"> | |
| <p> </p> | |
| <img src="SA6.png" alt="" style="width:604px;height:428px"/></p> | |
| <div class="p"> | |
| <div class="note note" id="loio22be92df80da42cf982b9506e31d8ae8__note_N100AD_N100A5_N10095_N1001D_N10011_N10001"><span class="notetitle">Note</span> Association Sets, | |
| Referential Constraints and the soruce and target roles are | |
| automatically created on creation of an association.</div> | |
| </div> | |
| </li> | |
| </ol> | |
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