How to set width of a p:column in a p:dataTable in PrimeFaces 3.0?

Question

I'm using PrimeFaces 3.0-M3 and I have a <p:dataTable> with two columns in it. I want the first column to be fixed at a width of 20px. The other column can use whatever space is left over.

Here are screenshots of what I'm currently getting:

The first <p:column> seems to be ignoring the style setting that should have limited the width. It is sized way too big for the tiny coloured square that is the only content inside it and then the other column is pushed too far to the right.

Here is more of my Facelet code:

<p:dataTable
        id="dataTableExpressions"
        value="#{catconBean.userDefinedExpressionDataModel}"
        var="currentRow"
        emptyMessage="!! EMPTY TABLE MESSAGE !!"
        selection="#{catconBean.userDefinedExpressionToEdit}"
        selectionMode="single">
    <p:ajax 
            event="rowSelect" 
            listener="#{catconBean.onUserDefinedExpressionRowSelect}"
            update=":toolbarForm:catconToolbar" />
    <p:ajax 
            event="rowUnselect" 
            listener="#{catconBean.onUserDefinedExpressionRowUnselect}"
            update=":toolbarForm:catconToolbar" />

    <p:column id="paletteColor" style="width:20px;">
        <h:panelGroup 
                layout="block"
                rendered="#{not empty currentRow.paletteColor}"
                style="width:16px;height:16px;border:thin;border-style:solid;border-color:black;background-color:##{currentRow.paletteColor.RGB};" />
        <h:panelGroup 
                layout="block"
                rendered="#{empty currentRow.paletteColor}"
                style="width:16px;height:16px;border:thin;border-style:dashed;border-color:red;background-color:white;text-align:center;">
            <h:outputText value="?" style="color:red;font-weight:bold;" />
        </h:panelGroup>
    </p:column>

    <p:column id="name">
        <f:facet name="header">
            <h:outputText value="#{bundle.catcon_label_CategoryName}" />
        </f:facet>
        <h:outputText 
            value="#{currentRow.name}"
            style="#{not currentRow.definitionComplete ? 'color:red;' : ''}" />
    </p:column>
</p:dataTable>

Can anyone tell me how to modify my Facelet code to make the first column have a fixed width of 20px?

Answer 1

In PrimeFaces 3.0, that style get applied on the generated inner <div> of the table cell, not on the <td> as you (and I) would expect. The following example should work out for you:

<p:dataTable styleClass="myTable">

with

.myTable td:nth-child(1) {
    width: 20px;
}

In PrimeFaces 3.5 and above, it should work exactly the way you coded and expected.

Answer 2

这对我有用

<p:column headerText="name" style="width:20px;"/>

Answer 3

For some reason, this was not working

<p:column headerText="" width="25px" sortBy="#{row.key}">

But this worked:

<p:column headerText="" width="25" sortBy="#{row.key}">

Answer 4

我不知道您使用的是哪种浏览器，但是根据w3schools.com，nth-child和nth-last-child现在可以在MSIE 8上运行。我不知道9。http：//www.w3schools .com / cssref / pr_border-style.asp将为您提供更多信息。

Answer 5

你能试一下吗

<p:column width="20">

Answer 6

我刚刚做了以下工作（在V 3.5中），它像一个魅力一样起作用：

<p:column headerText="name" width="20px"/>

Answer 7

Addition to @BalusC 's answer. You also need to set width of headers. In my case, below css can only apply to my table's column width.

.myTable td:nth-child(1),.myTable th:nth-child(1) {
   width: 20px;
}

Answer 8

内联样式在任何情况下都可以使用

  <p-column field="Quantity" header="Qté" [style]="{'width':'48px'}">