Posts Tagged ‘stateful example’
- In: extjs
- 4 Comments
http://xtrace.blogspot.com/2011/09/stateful-example-in-extjs-saving-tree.html [Migrating to this blog,,flollow there for further updates]
More on extjs at: http://xtrace.blogspot.com/search/label/extjs
First read this: http://dev.sencha.com/deploy/ext-4.0.2a/docs/#/api/Ext.state.Stateful-cfg-stateful
Following example demonstrate simple way to save a selected item in tree:
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this.tree = Ext.create(‘Ext.tree.Panel’, {
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viewConfig: {
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plugins: {
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ptype: ‘treeviewdragdrop’,
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appendOnly: true
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}
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},
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height: 350,
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width: 400,
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stateEvents: [‘saveSelectedItem’],
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stateId:’myTreeId’,
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stateful:true,
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rootVisible: false,
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mySelectedItem:”,//my own added Variable
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getState : function () {
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/*this is place where we state what things are to be saved*/
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console.log(‘saving’+this.mySelectedItem);
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/*we return thing to be save in format key:value*/
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return {
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mySelectedItem: this.mySelectedItem
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}
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},
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applyState : function (state) {
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/*this is place where we recover the saved state*/
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console.log(state);
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console.log(“Previosuly selected “+state.mySelectedItem);
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},
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listeners:{
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itemclick:{fn:function (view, record, item, index, even) {
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console.log(“saving item:”+record.data.text);
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this.mySelectedItem = record.data.text;
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this.fireEvent(‘saveSelectedItem’);
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}}
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}
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});
…………
Amit Shrestha 