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    <p>Here is the solution I came up with.</p> <ol> <li><p>In my column model, I made sure that the column I am making "editable" has an id. Each cell in that column will now have a CSS class associated with it named "x-grid-col-{id}". My column id is "status" so the class was "x-grid-col-status".</p></li> <li><p>I created the CSS for class "x-grid-col-status" which sets the dropdown arrow image as the background, aligned right. It also sets the cursor to pointer, so the user knows they can click on the cell.</p> <pre><code>.x-grid3-col-status { background-image: url(Image/trigger-single.gif); background-position: right; background-repeat: no-repeat; cursor: pointer; } </code></pre></li> <li><p>Next, I set up a listener for my ComboBox that listens for the 'focus' event. On focus, I expand the drop down. It is important that I had to add lazyInit: false to my ComboBox config, or else an empty list will appear when you expand. <em>lazyInit - true to not initialize the list for this combo until the field is focused (defaults to true)</em></p></li> </ol> <p>The code:</p> <pre><code> Ext.util.Format.comboRenderer = function (combo) { return function (value, metaData, record, rowIndex, colIndex, store) { var record = combo.findRecord(combo.valueField, value); return record ? record.get(combo.displayField) : combo.valueNotFoundText; } } var combo = new Ext.form.ComboBox({ typeAhead: true, triggerAction: 'all', lazyInit: false, lazyRender: true, mode: 'local', editable: false, store: new Ext.data.ArrayStore({ id: 0, fields: [ 'statusId', 'displayText' ], data: data }), valueField: 'statusId', displayField: 'displayText', listeners: { 'focus': { fn: function (comboField) { comboField.doQuery(comboField.allQuery, true); comboField.expand(); } , scope: this } , 'select': { fn: function (comboField, record, index) { comboField.fireEvent('blur'); } , scope: this } } }); var cm = new Ext.grid.ColumnModel({ defaults: { sortable: true }, columns: [ { id: 'orderId', header: 'ID', dataIndex: 'id', width: 50 }, { header: 'Status', id: 'status', dataIndex: 'status', width: comboColumnWidth, editor: combo, renderer: Ext.util.Format.comboRenderer(combo) }, { id: 'orderSummary', header: 'Summary', dataIndex: 'summary', renderer: this.renderSummary } ] }); var orderGrid = new Ext.grid.EditorGridPanel({ store: this.getOrderStore(), cm: cm, autoExpandColumn: 'orderSummary', title: title, clicksToEdit: 1 }); </code></pre>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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