在jQueryUI对话框内的jqGrid上正确调用setGridWidth [英] Correctly calling setGridWidth on a jqGrid inside a jQueryUI Dialog

问题描述

我有一个jQueryUI对话框(#locDialog)，其中有一个jqGrid($grid).当对话框打开时(最初，但每次打开时都会调用它)，我希望$grid调整为$locDialog的大小.最初执行此操作时，滚动条会出现在网格内(而不是对话框内).

I have a jQueryUI dialog (#locDialog) which has a jqGrid ($grid) inside it. When the Dialog opens (initially, but it gets called whenever it opens), I want the $grid to resize to the size of the $locDialog. When I do this initially, I get scrollbars inside the grid (not inside the dialog).

如果我调试代码，我会看到$grid的宽度是677.因此，我再次调用setGridWidth()并检查宽度，现在我有659，即少了18px，即jqGrid的滚动区域(Dun-dun-dun ..)

If I debug the code, I see the width of the $grid is 677. So, I call setGridWidth() again and check the width and now I have 659, which is 18px less, which is the size of the scroll area for the jqGrid (Dun-dun-dun..)

当我调整对话框的大小时，我也调整了网格的大小，一切都变得很愉快-没有滚动条，除非有必要.

When I rezie the dialog, I resize the grid as well, and everything is happy - no scrollbars, except where necessary.

我的对话框初始化代码:

My dialog init code:

$locDialog = $('#location-dialog').dialog({
    autoOpen: false,
    modal: true,
    position: ['center', 100],
    width: 700,
    height:500,
    resizable: true,
    buttons: {
                "Show Selected": function() {alert($('#grid').jqGrid('getGridParam','selarrrow'));},
                "OK": function() {$(this).dialog('close');},
                "Cancel": function() {$(this).dialog('close');}
             },
    open: function(event, ui) {
        $grid.setGridHeight($(this).height()-54); 
          // No idea why 54 is the magic number here
        $grid.setGridWidth($(this).width(), true);
    },
    close: function(event, ui) {

    },
    resizeStop: function(event, ui) {
        $grid.setGridWidth($locDialog.width(), true);
        $grid.setGridHeight($locDialog.height()-54);
    }
});

我很好奇是否有人以前见过这个.真的，如果我起初没有不必要的滚动条，这还不是世界末日，但奇怪的是，当我最初调用setGridWidth时，它没有考虑到18px的滚动区域.

I am curious if anyone has seen this before. Really, it isn't the end of the world if I initially have unnecessary scrollbars at first, but it is just odd that when I call setGridWidth initially, it doesn't take into account the scroll area of 18px.

就神奇数字54而言，这就是我必须从对话框值的高度中减去的数字，才能使网格呈现出来而没有不必要的滚动条.

As far as the magical number 54, that is the number I had to subtract from the height of the dialog value to get the grid to render without unnecessary scrollbars.

我认为这可能是时间问题，尽管这没有多大意义.网格完全加载后，也许我应该调用一个事件.这样可以确保它正确计算宽度.

I think it may be a timing issue, though this doesn't make a lot of sense. Perhaps I should call an event once the grid is completely loaded. This may ensure it calculates its width correctly.

推荐答案

在某些情况下，jqGrid计算宽度有些不正确.通常，我在网格宽度方面存在问题，但是在某些情况下，在IE6上也存在高度问题.因此，我必须编写一个小的函数来解决该问题.

There are some cases, where jqGrid calculate the width a little incorrect. Mostly I have problems with grid width, but in some cases on IE6 also with the height. So I have to write a small function to fix the problem.

var fixGridWidth = function (grid) {
    var gviewScrollWidth = grid[0].parentNode.parentNode.parentNode.scrollWidth;
    var mainWidth = jQuery('#main').width();
    var gridScrollWidth = grid[0].scrollWidth;
    var htable = jQuery('table.ui-jqgrid-htable', grid[0].parentNode.parentNode.parentNode);
    var scrollWidth = gridScrollWidth;
    if (htable.length > 0) {
        var hdivScrollWidth = htable[0].scrollWidth;
        if ((gridScrollWidth < hdivScrollWidth))
            scrollWidth = hdivScrollWidth; // max (gridScrollWidth, hdivScrollWidth)
    }
    if (gviewScrollWidth != scrollWidth || scrollWidth > mainWidth) {
        var newGridWidth = (scrollWidth <= mainWidth)? scrollWidth: mainWidth;  // min (scrollWidth, mainWidth)
        // if the grid has no data, gridScrollWidth can be less then hdiv[0].scrollWidth
        if (newGridWidth != gviewScrollWidth)
            grid.jqGrid("setGridWidth", newGridWidth);
    }
};

var fixGridHeight = function (grid) {
    var gviewNode = grid[0].parentNode.parentNode.parentNode;
    //var gview = grid.parent().parent().parent();
    //var bdiv = jQuery("#gview_" + grid[0].id + " .ui-jqgrid-bdiv");
    var bdiv = jQuery(".ui-jqgrid-bdiv", gviewNode);
    if (bdiv.length) {
        var delta = bdiv[0].scrollHeight - bdiv[0].clientHeight;
        var height = grid.height();
        if (delta !== 0 && height && (height-delta>0)) {
            grid.setGridHeight(height-delta);
        }
    }
};

var fixGridSize = function (grid) {
    this.fixGridWidth(grid);
    this.fixGridHeight(grid);
};

在此代码中，"main"是将在其中创建网格的父div的ID.在代码中，我测试了scrollWidth > mainWidth的宽度是否允许增加jqGrid宽度.

In this code "main" is the id of parent div inside of which the grid will be created. In the code I test (scrollWidth > mainWidth) whether the width of "main" allow increasing of jqGrid width.

调用此函数的正确位置是在loadComplete内部:

Correct place to call this function is inside of loadComplete:

loadComplete: function() {
    var gr = jQuery('#list');
    fixGridSize(gr);
}

和"done"内部，如果使用'columnChooser'，则使用Query('#list').jqGrid('columnChooser');

and inside of "done", if you use 'columnChooser' if use use Query('#list').jqGrid('columnChooser');

(在此示例中，我也使用'gridResize'.)

(in this example I use also 'gridResize'.)

这篇关于在jQueryUI对话框内的jqGrid上正确调用setGridWidth的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！