html editor - ExtJS HTMLEditor toolbar gets disappeared after reaching specified height -

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i using extjs htmleditor , set properties follows-

{ xtype: "htmleditor", width: 500, height: 250}

while entering text, after reaching specified height, toolbar gets disappeared. tried removing height , setting autoheight: true in both cases html editor not fit window (htmleditor inside ext.form.formpanel).

anyone having idea solve it.

this code

ext.onready(function() {     ext.create('ext.window.window', {         title: 'this title',     resizable: false,     modal: true,     height: 300,     width: 500,     layout: 'fit',     closeaction: 'hide',         items: [                     new ext.form.formpanel({                     border: false,                     autoheight: true,                 items: [                     {  allowblank: false, xtype:                                          "htmleditor", height: 250, width: 600, anchor:'100%'}                 ]             })          ],          buttons: [         {text: 'ok' },         {text: 'cancel'}          ]      }).show(); });

i have solved problem- added layout: 'fit' formpanel

ext.onready(function() {     ext.create('ext.window.window', {         title: 'this title',     resizable: false,     modal: true,     height: 300,     width: 500,     layout: 'fit',     closeaction: 'hide',         items: [                     new ext.form.formpanel({                     border: false,                     layout: 'fit',   // fixed issue                     items: [                         {  allowblank: false,                             xtype: "htmleditor",                             height: 250,                             width: 600                         }                     ]             })          ],          buttons: [                     {text: 'ok' },                     {text: 'cancel'}          ]      }).show(); });

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