@Michael Härtl's answer is right. But 2 Problem occur when you use this code.
1) When User Search in filter at that time, every time grid will be refresh so focus of input box will be lost.
2) When you search in one filter input and if you go to second input field field at that time first input box will be lost.
So now I have got the solution for that.
Set this java script code on your grid view.
Yii::app()->clientScript->registerScript('search', "
$('body').on('keyup','.filters > td > input', function() {
$(document).data('GridId-lastFocused',this.name);
data = $('#GridId input').serialize();
$('#GridId').yiiGridView('update', {
data: data
});
return false;
});
// Configure all GridViews in the page
$(function(){
setupGridView();
});
// Setup the filter(s) controls
function setupGridView(grid)
{
if(grid==null)
grid = '.grid-view tr.filters';
// Default handler for filter change event
$('input,select', grid).change(function() {
var grid = $(this).closest('.grid-view');
$(document).data(grid.attr('id')+'-lastFocused', this.name);
});
}
// Default handler for beforeAjaxUpdate event
function afterAjaxUpdate(id, options)
{
var grid = $('#'+id);
var lf = $(document).data(grid.attr('id')+'-lastFocused');
// If the function was not activated
if(lf == null) return;
// Get the control
fe = $('[name=\"'+lf+'\"]', grid);
// If the control exists..
if(fe!=null)
{
if(fe.get(0).tagName == 'INPUT' && fe.attr('type') == 'text')
// Focus and place the cursor at the end
fe.cursorEnd();
else
// Just focus
fe.focus();
}
// Setup the new filter controls
setupGridView(grid);
}
// Place the cursor at the end of the text field
jQuery.fn.cursorEnd = function()
{
return this.each(function(){
if(this.setSelectionRange)
{
this.focus();
this.setSelectionRange(this.value.length,this.value.length);
}
else if (this.createTextRange) {
var range = this.createTextRange();
range.collapse(true);
range.moveEnd('character', this.value.length);
range.moveStart('character', this.value.length);
range.select();
}
return false;
});
}");
Add this line to your gridview widget code.
'afterAjaxUpdate'=>'afterAjaxUpdate',
For example:
$this->widget('zii.widgets.grid.CGridView', array(
'id' => 'GridId',
'afterAjaxUpdate'=>'afterAjaxUpdate',
));