jQuery jqGrid trigger reloadGrid

问题:

I'm using a jqGrid to display the results of a search. When the search button is clicked it does this:

$("#Search").jqGrid('setGridParam', { url: url }).trigger("reloadGrid");

Where url contains the search params, for example:

var url ="/search?first=joe&last=smith"

The web server is receiving this URL and responding appropriately. But on the client side it throws this error in jqgrid.min.js line 21:

Syntax error:    
}); b.fn.jqGrid = function(f) { 

What can I do to fix this? I'm using jqGrid sucessfully in many other places, but this is the only one where I'm changing the URL and reloading.

回答1:

Try using the non minified version on this page to see more context of why it's surrounding. What you're seeing there is a where parsing is halting; I suspect your error is further up. This way you can see if the current url is being used and what's throwing it off.

回答2:

It seems to me that the error which you have in jqgrid.min.js corresponds an error in uncompressed version of jqGrid direct at the beginning of .jqGrid('setGridParam', { url: url }) (see line 82 of grid.base.js). It is the part of the so named "New API" introduced in 3.6 version of jqGrid. The code fragment started with following lines:

$.fn.jqGrid = function( pin ) {
    if (typeof pin == 'string') {
        var fn = $.fn.jqGrid[pin];
        if (!fn) {
            throw ("jqGrid - No such method: " + pin);
        }
        var args = $.makeArray(arguments).slice(1);
        return fn.apply(this,args);
    }
//...

I am not sure why you have a "syntax error", bu I recommend you to verify, that the id of the grid is really "Search". If you will don't find an error add more information in your question. For example: which version of jQuery you use? Including of a code fragment and the order of JavaScripts which you load would be also helpful.

回答3:

Instead of setting the url you should try something like this.

I am using this for custom drop downs that I add to the grid. Basicaly I conditionaly add 2 drop downs to the top toolbar section of the grid for quick searching.

var toolbarspan = $("<span>");

    if (tblDef.State != null) {
        $("<label>").attr("for", "selectState").append(" State: ").appendTo("#t_colch")
        $("<select>").attr("id", "selectState")
            .append($("<option>").attr({selected: true, value: "O"}).append("Open"))
            .append($("<option>").attr("value", "C").append("Closed"))
            .append($("<option>").attr("value", "B").append("Both"))
            .change(selChange)
            .appendTo("#t_colch")
       }

    $("<label>").attr("for", "selectInActive").append(" InActive: ").appendTo("#t_colch")
        $("<select>").attr("id", "selectInActive")
            .append($("<option>").attr({selected: true, value: "0"}).append("Active"))
            .append($("<option>").attr("value", "1").append("InActive"))
            .append($("<option>").attr("value", "B").append("Both"))
            .change(selChange)
            .appendTo("#t_colch");

    }

If you wanted your 2 fields in the top toolbar as well you will need to add the following to your table options.

 toolbar: [true, "top"],

First add this to your table definition.

beforeRequest: myBeforeRequest(this),

Then define your myBeforeRequest function something like this.

function myBeforeRequest(grid) {
    $(grid).jqGrid("setPostDataItem", "InActive", 0);
    var chkVal="";
    if ($("#selectInActive").length > 0)
    {
        chkVal = $("#selectInActive").val();
        if (chkVal == "B") $(grid).jqGrid("removePostDataItem", "InActive");
        else $(grid).jqGrid("setPostDataItem", "InActive", chkVal);
    }
    if (tblDef.State != null) {
        $(grid).jqGrid("setPostDataItem", "StateCol",  tblDef.State);
        $(grid).jqGrid("setPostDataItem", "State", "O");
        if($("#selectState").length > 0)
        {
            chkVal = $("#selectState").val();
            if (chkVal == "B") $(grid).jqGrid("removePostDataItem", "State");
            else $(grid).jqGrid("setPostDataItem", "State", chkVal);        
        }
    }
    }

You could do the same for your 2 searching fields even clearing them from the parameters if they are blank. This would result in the same url that you are manualy editing now. GetRecords.aspx?InActive=0&State=O&StateCol=9 is what I am currently getting at the server.

回答4:

Refresh method works Ok for me. It is refreshing Dates (to and from) in each call.

The last two lines of code do all the magic.

I´m using it like this:

function refreshGrid() {    

    var gridSel = "#analyticsTbl";
    var fromDt = jQuery('#dpFrom').datepicker().val();
    var toDt = jQuery('#dpTo').val();

    var url = 'myService.asmx/MyWebMethod?fromdt=' + fromDt + '&' + 'todt=' + toDt;


    jQuery(gridSel).jqGrid({
        url: url,
        mtype: "GET",
        datatype: "xml",
        colNames: ['Product', 'Group', 'Score', 'Date'],
        colModel: [
                   { name: 'Product',  index: 'Product', sortable: true },
                   { name: 'Group', index: 'Group', sortable: true },
                   { name: 'Score', index: 'Score', sortable: true },
                   { name: 'Date', index: 'Date', sortable: true }
                  ],
        viewrecords: true,
        sortorder: "desc",
        caption: "Report",       
        hidegrid: false,
        autowidth: true,
        height: "100%"

    });

    jQuery(gridSel).jqGrid('navGrid', '#pgwidth', { edit: false, add: false, del: false });


    jQuery(gridSel).jqGrid('setGridParam', { url: url });
    jQuery(gridSel).trigger("reloadGrid");
}