c# 如何让列表视图的列在最大化时占据整个窗口？

Question

您好，我需要调整列标题，以便它们在最大化时占据整个窗口。

预期输出是列表视图列占据整个窗口，但实际输出是列不占据整个窗口，否则列在最大化时占据窗口的一部分。

这是我声明方法正在初始化并调整列表视图及其各自列的大小时的类（当我将其最大化时，这些方法不会占用整个窗口。

public Takenshows()
{
InitializeComponent();
lvwColumnSorter = new ListViewColumnSorter();
this.listView1.ListViewItemSorter = lvwColumnSorter;
listView1.Dock = System.Windows.Forms.DockStyle.Fill; //The table occupies the entire width of the window when the window is maximized.
}

//this is a helper method where we REFIT the sampler table by maximizing it
private void SizeLastColumn(System.Windows.Forms.ListView lv)
{
lv.Columns[lv.Columns.Count - 1].Width = -2;
lv.Columns[lv.Columns.Count - 1].AutoResize(ColumnHeaderAutoResizeStyle.None);
lv.Dock = System.Windows.Forms.DockStyle.Fill;
lv.Alignment = ListViewAlignment.SnapToGrid;
}

//A method that allows you to wrap the table by calling the helper method that wraps the table when the window is maximized.
private void listView1_Resize(object sender, System.EventArgs e)
{
SizeLastColumn((System.Windows.Forms.ListView)sender);
}

private void Takenshows_Load(object sender, EventArgs e)
{
// INITIALIZE the table

listView1.View = View.Details;
SizeLastColumn(listView1);
}

这是代码的一部分，我有 Takenshows.cs 的设计器，其中包含列表视图及其各自的列标题。

public System.Windows.Forms.ListView listView1;
private System.Windows.Forms.ColumnHeader columnordnum;
private System.Windows.Forms.ColumnHeader columndatetimeshow;
private System.Windows.Forms.ColumnHeader columnvalues;
private System.Windows.Forms.ColumnHeader columntestnumber;

this.listView1.Alignment = System.Windows.Forms.ListViewAlignment.SnapToGrid;
this.listView1.AllowColumnReorder = true;
this.listView1.Anchor = System.Windows.Forms.AnchorStyles.Top;
this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
        this.columnordnum,
        this.columndatetimeshow,
        this.columnvalues,
        this.columntestnumber});
this.listView1.FullRowSelect = true;
this.listView1.HideSelection = false;
this.listView1.Location = new System.Drawing.Point(3, 4);
this.listView1.Margin = new System.Windows.Forms.Padding(5);
this.listView1.MultiSelect = false;
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(1064, 559);
this.listView1.AllowColumnReorder = true;
this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.listView1.TabIndex = 1;
this.listView1.UseCompatibleStateImageBehavior = false;
this.listView1.View = System.Windows.Forms.View.Details;
this.listView1.SelectedIndexChanged += new 
System.EventHandler(this.listView1_SelectedIndexChanged);
// 
// columnordnum
// 
this.columnordnum.Text = "Order number";
this.columnordnum.Width = 115;
this.columnordnum.AutoResize(System.Windows.Forms.ColumnHeaderAutoResizeStyle.None);
// 
// columndatetimeshow
// 
this.columndatetimeshow.Text = "datetime show";
this.columndatetimeshow.Width = 140;
this.columndatetimeshow.AutoResize(System.Windows.Forms.ColumnHeaderAutoResizeStyle.None);
// 
// columnvalues
// 
this.columnvalues.Text = "values";
this.columnvalues.Width = 420;
this.columnvalues.AutoResize(System.Windows.Forms.ColumnHeaderAutoResizeStyle.None);
// 
// columntestnumber
// 
this.columntestnumber.Text = "test number";
this.columntestnumber.Width = 105;
this.columntestnumber.AutoResize(System.Windows.Forms.ColumnHeaderAutoResizeStyle.None);

我应该渲染列表视图，以便列表视图的列在最大化时占据整个窗口。

有什么办法可以解决这个问题吗？

Answer 1

您的目标是在最大化（或通常调整大小）时缩放

ListView

列以填充主窗口的整个宽度。假设

ListView

已锚定，订阅

ListView

在调整大小时触发的事件将允许您根据窗口的新宽度重新计算比例（或自定义）宽度。例如：

public partial class MainForm : Form
{
    public MainForm() => InitializeComponent();
    protected override void OnLoad(EventArgs e)
    {
        base.OnLoad(e);
        autoScaleColumns();
        listView.Anchor = (AnchorStyles)0xF;
        listView.SizeChanged += (sender, e) => autoScaleColumns();
    }
    private void autoScaleColumns()
    {
        var proportional = listView.ClientRectangle.Width / listView.Columns.Count;
        foreach (ColumnHeader column in listView.Columns)
        {
            column.Width = proportional;
        }
    }
}

我还鼓励您研究使用

DataGridView

的替代方案，它具有更灵活的内置 AutoSize 属性。

Answer 2

我认为您正在寻找的是“表单调整大小”。这会调整所有列的大小并调整最后一列的大小以最大化 ListView 的其余部分。

if (MyListView.Columns.Count > 0) {                     
    MyListView.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize);
    MyListView.AutoResizeColumn(lv.Columns.Count - 1, ColumnHeaderAutoResizeStyle.HeaderSize);
}

Answer 3

在设计器视图中，单击“ListView 任务”箭头（列表视图的右上角）并选择“停靠在父容器中”。