我正在创建一个发送API调用并将结果保存到数据库的应用程序。为了避免一直回到API文档,我创建了一个小应用程序来提醒我调用的基本元素。通过将xml文档加载到内存中并使用列表框选择适当的调用来工作。然后其元素显示在文本块(和文本框)中。
“ apicalls.xml”文件的结构如下:
<Calls>
<Call>
<Description>blah blah</Description>
<api>POST /api/something/somethingElse/etc</api>
<Accept>application/xml</Accept>
<ContentType>application/xml</ContentType>
<Parameters>id</Parameters>
<Method>POST</Method>
<ReceiveFile>true</ReceiveFile>
<Category>aCategory</Category>
</Call> </Calls>
“呼叫”元素很多。因此,C#代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Xml;
using System.Windows.Threading;
namespace ShowAPI
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public XmlDocument doc = new XmlDocument();
public MainWindow()
{
InitializeComponent();
doc.Load("apicalls.xml");
}
private void getAll(string name)
{
XmlNodeList nodeList = doc.DocumentElement.SelectNodes("Call");
int i = 0;
foreach (XmlNode node in nodeList)
{
XmlNode cat = node.SelectSingleNode("Category");
if (cat.InnerText == name)
{
ListBoxItem item = new ListBoxItem();
item.Content = (++i).ToString() + " " + node.SelectSingleNode("api").InnerText;
//item.Content = node.SelectSingleNode("api").InnerText;
item.Name = "N" + i.ToString();
list.Items.Add(item);
}
}
}
private void RadioButton_Checked(object sender, RoutedEventArgs e)
{
string name = (((RadioButton)sender).Content.ToString());
list.Items.Clear();
getAll(name);
dispatch(); // this is to display the items after the listbox has been populated
}
private void dispatch()
{
list.Dispatcher.Invoke(DispatcherPriority.Render, EmptyDelegate);
}
private static Action EmptyDelegate = delegate () { };
private void list_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (list.Items.Count == 0)
return;
int index = list.SelectedIndex;
object sel = e.AddedItems[0];
string s = sel.ToString();
XmlNodeList nodes = doc.DocumentElement.SelectNodes("Call");
IEnumerable<RadioButton> enumerable = panel.Children.OfType<RadioButton>();
Func<RadioButton, bool> func = (x) => x.IsChecked == true;
RadioButton res = enumerable.Single<RadioButton>(func);
string find = res.Content.ToString();
List<XmlNode> nodeList = new List<XmlNode>();
foreach (XmlNode xnode in nodes)
{
XmlNode api_node = xnode.SelectSingleNode(".//api");
XmlNode cat_node = xnode.SelectSingleNode(".//Category");
string s_api = api_node.InnerText;
string s_cat = cat_node.InnerText;
if (s_cat == find)
{
nodeList.Add(xnode);
}
}
XmlNode xxx = nodeList[index];
description.Text = xxx.SelectSingleNode(".//Description").InnerText;
api.Text = xxx.SelectSingleNode(".//api").InnerText.TrimStart(new char[] { 'G', 'E', ' ', 'T', 'L', 'U', 'P', 'S', 'O', 'D' });
accept.Text = xxx.SelectSingleNode(".//Accept").InnerText;
contentType.Text = xxx.SelectSingleNode(".//ContentType").InnerText;
method.Text = xxx.SelectSingleNode(".//Method").InnerText;
expectFile.Text = xxx.SelectSingleNode(".//ReceiveFile").InnerText;
parameters.Text = xxx.SelectSingleNode(".//Parameters").InnerText;
}
}
}
这是xaml中的ListBox实现:
<ListBox Name ="list" HorizontalAlignment="Left" Height="396" Margin="582,52,0,0" VerticalAlignment="Top" Width="561" SelectionChanged="list_SelectionChanged">
<ListBox.Background>
<RadialGradientBrush Center="0.1,0.5" GradientOrigin="2,1" RadiusX="1" RadiusY="0.3" SpreadMethod="Reflect">
<GradientStop Color="#FFC7431C" Offset="1"/>
<GradientStop Color="#FFD31010" Offset="0.494"/>
</RadialGradientBrush>
</ListBox.Background>
</ListBox>c
因此,列表框已正常填充,我可以看到所有项目都很好,但是当我将鼠标移到它们上方时,无法选择第12个项目之外的任何项目(它们似乎不是交互式的,背景不会改变)在项目上移动)。
我尝试将listboxitems作为对象而不是文本插入(我已经在其中读到了一些东西),并通过在实际内容之前添加索引号和方法名称来避免插入相同的项。似乎什么都没用,我也不知道...
P.S。我还对GetProperties()使用了反射,并将第一个listboxitem的值与第14个listboxitem的值进行比较,除了名称和内容之外,它们是相同的。 我只是注意到,使用箭头键选择项目效果很好。鼠标选择不适用于12号以后的任何项目。
答案 0 :(得分:0)
我建议您使用基于(number+'').padStart(4,'0');
等WPF核心功能和当前项目同步的稍微不同的方法。
因此,首先在您的窗口资源中定义一个XmlDataProvider:
XmlDataProvider
稍后将其绑定到您的列表。像这样:
<Window.Resources>
<XmlDataProvider x:Key="CallsData">
<x:XData>
<Calls xmlns=''>
<Call>
<Description>blah blah 3</Description>
<api>POST /api/something</api>
<Accept>application/xml</Accept>
<ContentType>application/xml</ContentType>
<Parameters>id</Parameters>
<Method>POST</Method>
<ReceiveFile>true</ReceiveFile>
<Category>Cat1</Category>
</Call>
<Call>
<Description>blah blah 2</Description>
<api>POST /api/something/somethingElse</api>
<Accept>application/xml</Accept>
<ContentType>application/xml</ContentType>
<Parameters>id</Parameters>
<Method>POST</Method>
<ReceiveFile>true</ReceiveFile>
<Category>Cat3</Category>
</Call>
<Call>
<Description>blah blah 3</Description>
<api>POST /api/something/somethingElse/etc</api>
<Accept>application/xml</Accept>
<ContentType>application/xml</ContentType>
<Parameters>id</Parameters>
<Method>POST</Method>
<ReceiveFile>true</ReceiveFile>
<Category>Cat2</Category>
</Call>
</Calls>
</x:XData>
</XmlDataProvider>
</Window.Resources>
答案 1 :(得分:0)
似乎有一些元素覆盖ListBox
,例如TextBlock
。这就是为什么您不能选择位于叠加元素“下方”的项目的原因。
将其删除,选择应能按预期工作。