小编wal*_*gic的帖子

我有一个返回IList <T>的函数,它是DataGridView的DataSource.我了解到DataGridView不会对IList进行排序.我读了这个stackoverflow问答,我正在尝试实现SortableBindingList.我一定做错了,因为我的DataGridView是空的.我还尝试使用TextBox从SortableBindingSource访问一个元素,但也没有.

using Microsoft.SqlServer.Management.Controls;
public partial class Form1 : Form
{
    IBusinessLayer businessLayer;
    IList<Category> categories;
    SortableBindingList<Category> catSortable;

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {

        businessLayer = new BusinessLayer();

        categories = businessLayer.GetAllCategories();
        catSortable = new SortableBindingList<Category>(categories);
        categoryBindingSource.DataSource = catSortable;
        categoryDataGridView.DataSource = categoryBindingSource;

        textBox1.Text = catSortable[0].CategoryName;

    }
}

我检查了Microsoft.SqlServer.Management.Controls,这看起来不错吗？

namespace Microsoft.SqlServer.Management.Controls
{
    public class SortableBindingList<T> : BindingList<T>
    {
        public SortableBindingList();
        public SortableBindingList(IList<T> list);

        protected override bool IsSortedCore { get; }
        protected override ListSortDirection …

好的，我在学习 XmlSerializer 时遇到了一些障碍。我遵循了所有推荐的步骤，但我的程序没有返回任何内容，或者返回 null。我创建了一个 XML 文件，如下所示：

<?xml version='1.0' encoding='UTF-8' ?>
<WeeklyJobs>
   <DailyJobs Date = "02/03/2012"/>
  <DailyJobs Date = "02/04/2012" TotalJobs = "2">
    <Jobs>
      <Job JobName = "Job Name" Description = "Description"/>
      <Job JobName = "Job Name" Description = "Description"/>
    </Jobs>
  </DailyJobs>
  <DailyJobs Date = "02/05/2012" TotalJobs = "1">
    <Jobs>
      <Job JobName = "Job Name" Description = "Description"/>
    </Jobs>
  </DailyJobs>
  <DailyJobs Date = "02/06/2012" TotalJobs = "2">
    <Jobs>
      <Job JobName = "Job Name" Description = "Description"/>
      <Job JobName = "Job Name" …

我对其中一个工作项目的要求存在问题.我正在做的是将数据表绑定到DataGridView(DGV)的数据源.然后我遍历DataGridView并检查单元格的值是否为1*或2**,并使用工具提示和红色背景格式化这些单元格.如果我使用按钮事件触发这一切,一切都很好.但是,如果我希望在使用DataBindingComplete事件加载表单时自动执行此操作,则它无法正常工作.问题是DataBindingComplete多次触发.我读了这个问题,这给了我一些选择尝试,没有一个工作.这是代码:

public partial class TestForm2 : Form
{
    private DataTable dt;
    private int methodCalls = 0;
    private bool isFormatted = false;

    public TestForm2()
    {
        InitializeComponent();
        buildDataTable();
        dataGridView1.DataBindingComplete += dataGridView1_DataBindingComplete;
    }

    private void TestForm2_Load(object sender, EventArgs e)
    {
        bindData();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        formatDataGridView();
    }

    private void bindData()
    {
        dataGridView1.DataSource = dt;
    }

    private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
    {
        //If this code is commented out the program will work just fine 
        //by just clicking …