Code:
analysisGrid = new Ext.grid.GridPanel({
            store: analysisStore,
            columns: columns,
            renderTo: 'analysis-grid',
            autoHeight: false,
            height:420,
            autoExpandColumn:'title' ,
            autoExpandMax:2000,
            viewConfig:{
                autoFill:true,
                forceFit:true,
                emptyText:'No Analysis Data found.'
            },
            border:false,
            plugins: [filters],
            sm: selModel
        })
IN the above grid i m hiding and showing column using setHidden(index, Boolean), but in the process of hide/show columns, width of few columns becomes very large and few columns become very small.
In column model i have define the default width to 80.
plz some one tell me how to make column width equal dynamically?