I want to make an app and I need to use fl_chart.
The question is: What do I do to make a space for each element evenly.
How can I do it like this screenshot?
Remove the property alignment from the BarChartData (Most probably it's set to center). It's going to use the spaceBetween instead as default.
It's going to be like the following:
BarChart(
BarChartData(
// Remove the `alignment` or change it to `spaceBetween`
alignment: BarChartAlignment.spaceBetween,
...
),
...
),
Also, if not already wrap BarChart with a Expanded widget.
Actually, you could set up "barsSpace" in the parameter of "BarChartGroupData".
Example from fl_chart
BarChartGroupData
PropName
Description
default value
x
x position of the group on horizontal axis
null
barRods
list of BarChartRodData that are a bar line
[]
barsSpace
the space between barRods of the group
2
showingTooltipIndicators
indexes of barRods to show the tooltip on top of them
[]
Related
I am trying to put some text widgets inside a column, but there is this additional padding that I want to get rid of. Is there any "clean" way to do it? I could probably use Stack and specify the padding for every element in my case, but it is not a scalable solution.
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text('why'),
Text('so'),
Text('stretched'),
],
),
We have few solutions here:
1/. Add height for style of Text widget, height is double, default is 1.0 You can reduce it to 0.8 or 0.6 or any number as you want.
2/. Add SizedBox wrap your Text widget and set height for this SizedBox as you want.
In ag-Grid, if the columns occupy a smaller space than the width of the grid, a blank hole appears on the right of the last column. Please see below (example taken from ag-Grid docs):
The UX designers on my team don't like that. They would like to see the rows extended all the way to the right to balance out the look. Is this possible to do with ag-Grid?
Edit: We don't want to use the sizeColumnsToFit option, because on large monitors it produces very wide columns and the grid becomes unreadable. We want to use the autoSize option to compact the columns and fill the hole on the RHS with blank stripes as suggested above.
Yes it is possible. You can call the sizeColumnsToFit function on the ag-Grid api which will fill out the width of the table with the columns.
Take a look at documentation.
Here is a plunker example.
EDIT
Use the property suppressSizeToFit and set it to true to when you call sizeColumnsToFit, it won't have an affect. Apply this property to the defaultColDef and set it to false for the last column. This was, when you call sizeColumnsToFit, only the last column will be set to full width. See the updated plunker above.
this is how i do it:
/**
* if there is "dead space" present on the grid, the columns will be auto sized to fill the gap
* #param gridApi
* #param columnApi
*/
resizeColumnsToFit(gridApi: GridApi, columnApi: ColumnApi, allowShrink = false) {
if (allowShrink) {
gridApi.sizeColumnsToFit();
} else {
const gridBodyWidth = document.getElementsByClassName("ag-root-wrapper")[0].clientWidth; // todo: use grid's id instead of [0] to allow multiple grids on a page
const allColumnsWidth = columnApi.getAllDisplayedColumns().map(c => c.getActualWidth()).reduce((a, b) => a + b, 0);
if (gridBodyWidth > allColumnsWidth) {
gridApi.sizeColumnsToFit();
}
}
}
This method will size columns to fit only when there is "dead" space on the right. Optionaly set allowShrink to true to force resizing even if there is no dead space
I had the same situation and resolved with the following css override:
.ag-center-cols-container {
width: 100% !important;
}
One possible option I've been playing with is adding a fake column at the end to fill the remaining space. To do so, you just need to add a column with options similar to the following to the end of your list of columns:
{
flex: 1,
headerName: '',
}
See this plunker forked from #ViqMontana's example above.
It's not a perfect solution, but wanted to mention it here in case it helps.
This works like Craig Weston's answer but without the need for !important:
.ag-center-cols-container {
min-width: 100%;
}
In my developed grid with column grouping, there is white empty space is appear at end when resize the columns. Any Suggestion?[![enter image description here][1]][1]
You can call sizeColumnsToFit() after columnRowGroupChanged event:
columnRowGroupChanged A row group column was added or removed.
.html template event binding
(columnRowGroupChanged)="groupChanged($event)"
or .ts gridOptions event binding (don't forget to define [gridOptions] in .html)
this.gridOptions:{
onColumnRowGroupChanged : this.groupChanged.bind(this)
}
handling
groupChanged(params){
params.api.sizeColumnsToFit();
}
DEMO
Starting from ag-grid 23.1.0, we no longer have to use sizeColumnsToFit. Instead, in column definition, add flex: 1 to the last visible column.
This prevents all annoying jumps and weird grid behavior when resizing columns. In case user enlarge the column, horizontal scrollbar will appear, which is the expected behavior.
Please go over your code and change sizeColumnsToFit to the flex solution.
Flex also gives you control over relative column sizes, you can read more about it in the docs: https://www.ag-grid.com/javascript-grid-resizing/.
Example:
columnDefs = [{...}
...
{
headerName: 'HeaderA',
field: 'name',
...
flex: 1, // Adding this to last column definition
}]
All my searches turned up for sizeColumnsToFit and autoSizeColumns which is not what I want.
My grids have many columns, so it scroll horizontal which is fine
But I cannot know in advance what would be the most space needed for the widest text in a column, so want the grid to auto size all columns to accommodate for whatever is the longest line of text in the cell.
Can one do that? (pretty much like have nowrap on a html table column, not that ag-grid wrap text, it just hide what is too long)
Grid Resizing:
https://www.ag-grid.com/javascript-grid-resizing/
sizeColumnsToFit - this tries to squeeze all the columns in the view - no horizontal scrolling
autoSizeAllColumns - this tries to size all columns to to fit the data - horizontal scrolling
// If you need to resize specific columns
var allColIds = params.columnApi.getAllColumns()
.map(column => column.colId);
params.columnApi.autoSizeColumns(allColIds);
// If you want to resize all columns
params.columnApi.autoSizeAllColumns();
I passed through this and it took me some time to make it work the way I wanted to, by that I mean :
Use all the available space
Make each column take the width required to display its content correctly
Solution :
Add the width parameter for each column (requires some manual tuning to set the right values)
Call gridApi.sizeColumnsToFit() in the onGridReady which will resize to take the available space while making sure that columns having bigger width will take more space
const gridOptions = {
...
columnDefs: [
{
...,
width: 100
},
{
...,
width: 50
},
...
],
...
onGridReady: (event) => event.api.sizeColumnsToFit();
};
Simply use flex instead of width in the column definitions. The grid will adjust automatically.
You can find a complete example for auto resizing all column.
column-sizing
Simply call autoSizeColumns() function, all columns will be resized according to content.
gridColumnApi.autoSizeColumns(allColumnIds, skipHeader);
I have this chart, which has line and bars:
Is it possible to somehow extend the line outside of the chart in both directions? This line serves an important role, it is sort of a "limit" for bars, I just don't want for it to start at the center of the first bar, and to end at the center of the final bar.
I can extend it to the right by simply extending the dataset of the line, but is it possible to extend it also to the left somehow?
I figured out answer based on answer from this question: Is it able to align line chart at left margin in mixed chart?
I'm extending line type like this:
Chart.controllers.LineNoOffset = Chart.controllers.line.extend({
updateElement: function(point, index, reset) {
Chart.controllers.line.prototype.updateElement.call(this, point, index, reset);
const meta = this.getMeta();
const xScale = this.getScaleForId(meta.xAxisID);
point._model.x = xScale.getPixelForValue(undefined, index-0.5);
},
});
Now the LineNoOffset type of the line will start from the left border of the chart, which fulfills my need.