Question

我想使用带有十进制值的＆＃39; InputText Slider＆＃39;来自我的JSF2.2页面中的Primefaces.org，如下所示：

slider.xhtml

<h:panelGrid columns="1" style="margin-bottom: 10px">
    <p:inputText id="decimal" value="#{sliderView.number2}" />
    <p:slider for="decimal" minValue="0.2" maxValue="7.1" step="0.1" />
</h:panelGrid>

和SliderView.java类：

import javax.faces.bean.ManagedBean; 

@ManagedBean
public class SliderView {

private float number2;

public float getNumber2() {
    return number2;
}

public void setNumber2(float number2) {
    this.number2 = number2;
}
}

在这种情况下，它会抛出javax.el.ELException: Cannot convert [0.2] of type [class java.lang.String] to [int]。

即使我将minValue，maxValue和step的值更改为托管bean（例如#{sliderView.min}，#{sliderView.max}和#{sliderView.step}）它产生整数结果：

slider.xhtml

<h:panelGrid columns="1" style="margin-bottom: 10px">
        <p:inputText id="decimal" value="#{sliderView.number2}" />
        <p:slider for="decimal" minValue="#{sliderView.min}" maxValue="#
        {sliderView.max}" step="#{sliderView.step}" />
</h:panelGrid>

SliderView.java类：

import javax.faces.bean.ManagedBean; 

@ManagedBean
public class SliderView {

private float min = 0.2f;
private float max = 7.1f;
private float step = 0.1f;

private float number2;

public float getMin() {
    return min;
}

public void setMin(float min) {
    this.min = min;
}

public float getMax() {
    return max;
}

public void setMax(float max) {
    this.max = max;
}

public float getStep() {
    return step;
}

public void setStep(float step) {
    this.step = step;
}

public float getNumber2() {
    return number2;
}

public void setNumber2(float number2) {
    this.number2 = number2;
}
}

似乎未正确支持float或double值。据我所知，Primefaces Tag Documentation slider标签仅支持Integer值。但是为什么他们在ShowCase中给出了如此奇怪的代码示例？

Primefaces滑块具有浮点值

0 个答案: