【发布时间】：2016-10-13 18:48:05
【问题描述】：
我有一个 DataGridView，它使用面板进行滚动以避免可怕的“跳转到列表开头”DataGridView 刷新问题。
我正在寻找的是在垂直滚动期间保持可见并随着水平滚动移动的标题行。
我在 Visual Studio 2012 中测试了这段代码，所以它应该可以立即使用。
Form1.designer.cs
namespace DataGridViewPanel
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.dataGridView1 = new System.Windows.Forms.DataGridView();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.panel1.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// panel1
//
this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel1.AutoScroll = true;
this.panel1.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
this.panel1.Controls.Add(this.dataGridView1);
this.panel1.Location = new System.Drawing.Point(12, 73);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(260, 177);
this.panel1.TabIndex = 0;
//
// dataGridView1
//
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Location = new System.Drawing.Point(0, 0);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.ScrollBars = System.Windows.Forms.ScrollBars.None;
this.dataGridView1.Size = new System.Drawing.Size(257, 174);
this.dataGridView1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(13, 41);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 1;
this.button1.Text = "Clear";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(197, 41);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(75, 23);
this.button2.TabIndex = 2;
this.button2.Text = "Add Row";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.panel1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.panel1.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.DataGridView dataGridView1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
}
}
Form.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace DataGridViewPanel
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
fillDataGrid();
}
private void fillDataGrid()
{
dataBase Db = new dataBase();
List<dataBase> DbList = new List<dataBase>();
for (int i = 0; i < 10; i++)
{
DbList.Add(Db);
}
dataGridView1.DataSource = DbList;
int width = 0;
int height = 0;
foreach (DataGridViewColumn col in dataGridView1.Columns) width += col.Width;
foreach (DataGridViewRow row in dataGridView1.Rows) height += row.Height;
dataGridView1.Size = new Size(width, height);
}
private void button1_Click(object sender, EventArgs e)
{
dataBase Db = new dataBase();
List<dataBase> DbList = new List<dataBase>();
DbList.Add(Db);
dataGridView1.DataSource = DbList;
int width = 0;
int height = 0;
foreach (DataGridViewColumn col in dataGridView1.Columns) width += col.Width;
foreach (DataGridViewRow row in dataGridView1.Rows) height += row.Height;
dataGridView1.Size = new Size(width, height);
}
private void button2_Click(object sender, EventArgs e)
{
dataBase Db = new dataBase();
List<dataBase> DbList2 = new List<dataBase>();
DbList2 = (List<dataBase>)dataGridView1.DataSource;
dataGridView1.DataSource = null;
DbList2.Add(Db);
dataGridView1.DataSource = DbList2;
int width = 0;
int height = 0;
foreach (DataGridViewColumn col in dataGridView1.Columns) width += col.Width;
foreach (DataGridViewRow row in dataGridView1.Rows) height += row.Height;
dataGridView1.Size = new Size(width, height);
}
}
public class dataBase : IEnumerable<string>
{
public string one { get; set; }
public string two { get; set; }
public string three { get; set; }
public string four { get; set; }
public string five { get; set; }
public string six { get; set; }
public string seven { get; set; }
public string eight { get; set; }
public string nine { get; set; }
public string ten { get; set; }
public IEnumerator<string> GetEnumerator()
{
yield return one;
yield return two;
yield return three;
yield return four;
yield return five;
yield return six;
yield return seven;
yield return eight;
yield return nine;
yield return ten;
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return this.GetEnumerator();
}
}
}
【问题讨论】：
-
我们或许应该关注：
"Jump to beginning of list" DataGridView refresh issue. -
修改数据源，不存在“可怕的跳转开始”问题。如果您删除数据源并提供一个新数据源，那么您正在重新开始
-
我的数据源是一个列表如果我添加一行来更新列表，DataGridVeiw1 @Plutonix 不会发生任何变化
-
BindingList 比 List 更好
-
BindingList 运行良好。我已经举了一个例子。
标签： c# scroll datagridview panel header-row