I want to change a specific row visibility inside of a grid named "myGrid" given an index dynamically.
I thought first to get the specific row that I want use:
var row = Grid.GetRow(myGrid.Children[index]);
and then , to change the IsVisible attribute of 'row' like this:
row.IsVisible = false;
Unfortunately the second line of code Isn't legal...
I don't want to bind 'IsVisible' attribute of each row. It seem to me unnecessary work.
Any suggestion to solving this issue will be appreciate!!
I think your best bet is to bind the IsVisible property of each control in the row to a single property in your view model. Then all you have to do is change the value of your view model property to false and the whole row will be hidden.
Cause:
GetRow returns an int value.So you can't set the property like IsVisible
Solution:
You can set the rowHeight as 0 if you want to hide the specific row.
var row = myGrid.RowDefinitions[index];
row.Height = 0;
As others said, you are trying to change the visibility of an index (That is definitely wrong).
You cannot get the row of a Grid and set its visibility. Instead, you should set the visibility of the view inside the row.
But you should note that by doing so you may see an empty space inside the Grid if you have specified a fixed height or even star sizing for that row height.
It is better to set row height to Auto. By doing this, when the view inside that row is invisible, the height of the row decreases to 0.
Related
I am new to handsontable, and I can not achieve a goal as simple as to have the columns width as long as the content of the cells. Even if I have space enough in handsontable parent to display the full content of the table, some columns overlap the content of some cells.
I do not want to stretch the table to its parent. Just to show the full table contents (as I have space enough).
Update
The answer of fap is right.
I have realized the problem does not come from the basic definition of the table but for the definition of a renderer do on cells.
cells: function (row, col, prop) {
var cellProperties = {};
if (row === 0) {
cellProperties.renderer = firstRowRenderer;
}
return cellProperties;
}
function firstRowRenderer(instance, td, row, col, prop, value, cellProperties) {
Handsontable.renderers.TextRenderer.apply(this, arguments);
td.style.fontWeight = 'bold';
td.style.color = 'green';
td.style.background = '#CEC';
}
It is after the renderer is applied when the content does not fit into handsontable cells and it does not resize. This is the real problem I am facing.
Just don't specify any width for the table and/or columns. Handsontable will size the columns depending of the longest value there is in their respective cells.
See this simple example.
Note that if you edit the values, the column resize dynamically.
But what if you have a value that expand the column width so much that your table is wider than your screen ? Well, if you don't really want that (and I assume that you don't otherwise what's the point of delimiting your columns and/or your table in the first place ?), you can use the option preventOverflow :
preventOverflow: 'horizontal',
As you can see in this example, it will automatically create a navigate bar that prevent your table to go off screen but still size the columns in order to see all your data.
Is it possible to set a max-width and max-height for cells in Handsontable?
I've tried to set this via CSS on the <th> and <td> elements but this doesn't work.
I saw in the docs that you can set the columns to particular widths, but not maximums.
So, the solution is to use your HOT instance's manualColumnWidths array. This array will set the widths for all columns automatically. It's nested somewhere in the code so that anytime there's a change to the DOM it updates which is why using CSS or jQuery on the widths of the elements themselves wasn't working. It's a good structure, we just need this to be more explicitly written somewhere.
Note that you can repeat this for rows by just using manualRowHeights instead, as well as the rest of the row methods.
Now, here is how you would set maximums and minimums for column resizing events. Set the afterColumnResize option to this following function:
function setAfterColumnResize() {
return function(col, size) {
var headers = $(".colHeader"); // first is empty if there are rowHeaders
var maxW = [10, 200, 400]; // note that the first is the row header
var minW = [1, 100, 100]; // note that the first is the row header
var actualCol = col + 1; // this is to account for the row header
var maxColW = maxW[actualCol];
var minColW = minW[actualCol];
var actualW = $(headers[actualCol]).parent().parent().width();
if (hot && maxColW && actualW > maxColW) {
hot.manualColumnWidths[col] = maxColW;
hot.render()
}
if (hot && minColW && actualW < minColW) {
hot.manualColumnWidths[col] = minColW;
hot.render()
}
}
}
Now let me explain it. When this event gets triggered, you first find the header using the col index it gives you. Correct it if you have row headers set to true (which is what I do here and in the fiddle). Then you set the arrays of max/min widths (of course you can do this more elegantly in your code).
Then grab the actual current width of the column in question by looking at the parent's parent of the span (this is a little messy but it's the simplest way I found of doing). The conditional after should be self explanatory.
And lastly, the important bits. You can see that by accessing hot.manualColumnWidths you can set the width that you want. I set it to the max if my current width exceeds it. Then just re-render and you're done!
There are a few issues like the fact that these events get called only after resizing so if you originally set the table to render with a width larger than your max, it won't do anything. If that's the case, just call this function after rendering the table the first time (call it once per column).
This would also be the case if you didn't want to use the column resizing event; in this case, it would just be a normal function that you call after rendering.
Hope this helps! Here is a demo fiddle showing it in action :D
I am trying to create a generic style for all rows in my data table. I have been looking around and there seems to be a function I can use named rownum.
I tired to create the style like this...
row["__rownum"] Less than 0
then colour = Red
But this is not right. Can someone tell me the right way to do this so I can apply the style to multiple cells in my table.
Also where can i find documentation on what sort of functions like this are available?
thanks
I know two ways how you can specify conditional styles in BIRT:
You can write an "onRender" eventHandler (either in Java or JavaScript) for your row. In JavaScript it could looks as follow:
if (row["__rownum"] % 2 == 0) {
this.getStyle().backgroundColor = "red";
} else {
this.getStyle().color = "red";
}
Or create a new BIRT style with a highlight-rule like follows:
row["__rownum"] % 2 equals to 0 then
Set Color or whatever or apply another style
Instead of creating a new style, that you will have to assign to target elements, you can also modify one of the predefined styles, if you find a one matching your targets.
Both EventHandler and Styles can be assigned to various element: Cells, Rows, Tables, Report...
Links you may find helpful:
https://www.eclipse.org/birt/phoenix/deploy/reportScripting.php
http://help.eclipse.org/helios/index.jsp?topic=%2Forg.eclipse.birt.doc.isv%2Fmodel%2Fapi%2Forg%2Feclipse%2Fbirt%2Freport%2Fmodel%2Fapi%2FElementFactory.html
BIRT: Alternating row Color in a table group
I'm using SlickGrid and struggling to find an elegant solution to the following:
All columns must have a specific initial width when first rendered but be resizable afterwards
The final column should auto fill the remaining column space when the window is resized
I've seen:
Make one column fill remaining space in SlickGrid without messing up explicit width columns
resizing of grid when resizing browser window
How do I autosize the column in SlickGrid?
But these don't seem to quite do what I need.
If I use the forceFitColumns option, then all columns will autosize (unless I put a maxsize on them).
Using resizeCanvas on window.resize works well - but it still only works if forceFitColumns is true.
If I set minWidth=maxWidth - then I can't resize the column.
Any suggestions?
I'm not sure it would correct all your problem but in my case I do use the forceFitColumns and then depending how I want my column to react in size I will use a combination of minWidth and width, and in some cases the ones that will never exceed a certain width, I would then use a maxWidth as well. Now the problem you have is when setting the minWidth to be the same with as maxWidth this of course will make it unresizable, well think about it you set a minimum and a maximum, SlickGrid is respecting it by now being able to size it afterwards. I also have my grid which takes 95% width of my screen so I have a little padding on the side and with it I use a auto-resize using jQuery.
Here is my code:
// HTML Grid Container
<div id="myGridContainer" style="width:95%;">
<div class="grid-header" style="width:100%">
<label>ECO: Log / Slickgrid</label>
<span style="float:right" class="ui-icon ui-icon-search" title="Toggle search panel" onclick="toggleFilterRow1()"></span>
</div>
<div id="myGrid" style="width:100%;height:600px;"></div>
<div id="myPager"></div>
</div>
// My SlickGrid Options
var options = {
enableCellNavigation: true,
forceFitColumns: true
};
// The browser auto-resize
$(window).resize(function () {
$("#myGrid").width($("myGridContainer").width());
$(".slick-viewport").width($("#myGrid").width());
grid.resizeCanvas();
});
EDIT
I also was annoyed by the fact that using all of these together is blocking you from resizing the width of the column. I came up with a different solution, much later after, which makes the fields to expand (take available width) and does not block you afterwards on resizing the width. So this new solution I believe is giving you exactly what you are looking for... First of all remove the maxWidth property and only use minWidth and width, actually you could probably use only the width if you wanted. Now I had to unfortunately, modify 1 of the core file slick.grid.js with the following code:
//-- slick.grid.js --//
// on line 69 insert this code
autoExpandColumns: false,
// on line 1614 PREVIOUS CODE
if (options.forceFitColumns) {
autosizeColumns();
}
// on line 1614 change to this NEW CODE
if (options.forceFitColumns || options.autoExpandColumns) {
autosizeColumns();
}
then going back to my grid definition, I replace my previous options with this:
// My NEW SlickGrid Options
var options = {
enableCellNavigation: true,
forceFitColumns: false, // make sure the force fit is false
autoExpandColumns: true // <-- our new property is now usable
};
with this new change it has some functionality of the force fit (expanding) but does not restrict you on resizing your columns width afterwards like the force fit does. I also tested it with the columnPicker, if you hide a column it's resizing the others accordingly. I also modified the file slick.columnpicker.js to include a checkbox for that property but that is totally optional...I can add the code for that too if any of you want it as well. Voila!!! :)
EDIT #2
I realized much later that there's no need to modify the core file, we can simply call grid.autosizeColumns() after the grid creation. Like this
var options = { forceFitColumns: false };
grid = new Slick.Grid("#myGrid", data, columns, options);
// will take available space only on first load
grid.autosizeColumns();
This will automatically resize the columns to fit the screen on first load but will not give you the restriction of the forceFitcolumns flag.
I know it's kind late for this reply.
But i've managed to do that without having to change things at slick.grid.js or set min/maxWidth at columns array.
Instead what i did was to iterate through the columns array adding the values of "width" field of each column and then i've did a simple math count to set the last column width as innerWidth - totalColumsWidth + lastColumnWidth.
Code:
function lastColumnWidth(columns)
{
var widthSum = 0;
angular.forEach(columns, function(col) {
if(col.width) { widthSum = col.width + widthSum; }
});
if(window.innerWidth > widthSum) {
columns[columns.length-1].width = columns[columns.length-1].width + (window.innerWidth - widthSum);
}
return columns;
}
I want to setup jqgrig's cell (td) height to, say 32px, but with following limitations:
cell's text can be multiline;
cell should not contain any other elements, such div;
result i expect must be something like this:
Have any ideas?
Thanx.