我知道我可以在 的 上设置为WrapModetrue ，但这并没有给我想要的行为。我在每个单元格中显示一个字符串列表，因此我希望回车被识别，但我不希望长项目中的文本换行。DefaultCellStyleRowTemplate
有谁知道是否有可能实现这一目标？
问问题
15174 次
7 回答
4
我希望这是您正在寻找的：
我使用了两个事件：
- 我在单元格编辑后测量了高度。
- 我在绘制单元格时测量了文本，并在需要时对其进行修剪，然后重复直到合适为止。
代码：
public partial class Form1 : Form
{
private readonly int _rowMargins;
public Form1()
{
InitializeComponent();
int rowHeight = dataGridView1.Rows[0].Height;
_rowMargins = rowHeight - dataGridView1.Font.Height;
}
private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
DataGridView view = sender as DataGridView;
DataGridViewCell cell = view.Rows[e.RowIndex].Cells[e.ColumnIndex];
string text = string.Format("{0}", cell.FormattedValue);
if (!string.IsNullOrEmpty(text))
{
Size size = TextRenderer.MeasureText(text, view.Font);
view.Rows[e.RowIndex].Height = Math.Max(size.Height + _rowMargins, view.Rows[e.RowIndex].Height);
}
}
private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.ColumnIndex == -1 || e.RowIndex == -1)
{
return;
}
e.Paint(e.ClipBounds, DataGridViewPaintParts.All ^ DataGridViewPaintParts.ContentForeground);
DataGridView view = sender as DataGridView;
string textToDisplay = TrimTextToFit(string.Format("{0}", e.FormattedValue), (int) (e.CellBounds.Width * 0.96), view.Font);
bool selected = view.Rows[e.RowIndex].Cells[e.ColumnIndex].Selected;
SolidBrush brush = new SolidBrush(selected ? e.CellStyle.SelectionForeColor : e.CellStyle.ForeColor);
e.Graphics.DrawString(textToDisplay, view.Font, brush, e.CellBounds.X, e.CellBounds.Y + _rowMargins / 2);
e.Handled = true;
}
private static string TrimTextToFit(string text, int contentWidth, Font font)
{
Size size = TextRenderer.MeasureText(text, font);
if (size.Width < contentWidth)
{
return text;
}
int i = 0;
StringBuilder sb = new StringBuilder();
while (i < text.Length)
{
sb.Append(text[i++]);
size = TextRenderer.MeasureText(sb.ToString(), font);
if (size.Width <= contentWidth) continue;
sb.Append("...");
while (sb.Length > 3 && size.Width > contentWidth)
{
sb.Remove(sb.Length - 4, 1);
size = TextRenderer.MeasureText(sb.ToString(), font);
}
while (i < text.Length && text[i] != Environment.NewLine[0])
{
i++;
}
}
return sb.ToString();
}
}
享受吧，
奥菲尔
设计师代码：
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.dataGridView1 = new System.Windows.Forms.DataGridView();
this.LineNumber = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.Content = new System.Windows.Forms.DataGridViewTextBoxColumn();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.AllowUserToDeleteRows = false;
this.dataGridView1.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.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
this.LineNumber,
this.Content});
this.dataGridView1.Location = new System.Drawing.Point(13, 13);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.RowHeadersWidth = 55;
this.dataGridView1.RowTemplate.DefaultCellStyle.WrapMode = System.Windows.Forms.DataGridViewTriState.False;
this.dataGridView1.Size = new System.Drawing.Size(493, 237);
this.dataGridView1.TabIndex = 0;
this.dataGridView1.CellEndEdit += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView1_CellEndEdit);
this.dataGridView1.CellPainting += new System.Windows.Forms.DataGridViewCellPaintingEventHandler(this.dataGridView1_CellPainting);
//
// LineNumber
//
this.LineNumber.FillWeight = 30F;
this.LineNumber.Frozen = true;
this.LineNumber.HeaderText = "#";
this.LineNumber.MaxInputLength = 3;
this.LineNumber.Name = "LineNumber";
this.LineNumber.ReadOnly = true;
this.LineNumber.Resizable = System.Windows.Forms.DataGridViewTriState.False;
this.LineNumber.Width = 30;
//
// Content
//
this.Content.HeaderText = "Content";
this.Content.Name = "Content";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(518, 262);
this.Controls.Add(this.dataGridView1);
this.Name = "Form1";
this.Text = "Is it possible to have Multi-line DataGridView cells without wrapping text?";
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.DataGridView dataGridView1;
private System.Windows.Forms.DataGridViewTextBoxColumn LineNumber;
private System.Windows.Forms.DataGridViewTextBoxColumn Content;
}
于 2013-04-23T14:59:23.017 回答
2
我测试了这段代码，结果很好，请测试一下：
注意：在创建表单和Datagrid时，设置以下datagrid属性
1- AutoSizeRowsMode 到 AllCells。
2- 目标列的 WrapMode 为 True
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace DGMultiLine
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int max = 12; //min Column Width in Char
//do this for all rows of column for max Line Size in values
string str = "Hello\r\nI am mojtaba\r\ni like programming very very \r\nrun this code and pay attention to result\r\n Datagrid Must show this Line Good are you see whole of this Thats Finished!";
string[] ss = str.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
//find max Line Size To Now
for (int i = 0; i < ss.Length; i++)
if (ss[i] != null && ss[i] != "")
if (ss[i].Length > max)
max = ss[i].Length;
//Set target Column Width
dataGridView1.Columns[0].Width = max*5;//for adequate value you must refer to screen resolution
//filling datagrigView for all values
dataGridView1.Rows[0].Cells[0].Value = str;
}
}
}
您可以通过真正的全文添加一个隐藏的列和一个可见的列，这些列通过上面的代码显示字符串值，但字符串行的大小超过了您的 Max Column Size 剪辑字符串，并添加 ... 到 end 。（如果不清楚请写完整的代码）
于 2013-04-21T18:24:09.960 回答
1
它通过与字符串一起执行 \r\n 对我有用。
例如“你好”+ \r\n。然后它转到下一行。
编辑：
刚刚看到这是WinForms。上面的技巧只适用于 WPF。
编辑2：
您可以使用：
dataGridView1.DefaultCellStyle.WrapMode = DataGridViewTriState.True;
如果您不想包装长物品，您只需：
String stringTest = "1234567891";
if (stringTest.Length > 8)
{
stringTest = stringTest.Replace(stringTest.Substring(8), "...");
}
如果字符串长于 8，这将添加“...”。
于 2013-04-18T00:59:09.617 回答
0
一种方法是您可以只放置一些可见的单词，然后将鼠标悬停在该单元格上时，可以在工具提示中显示全文。
于 2012-12-31T14:02:09.563 回答
0
如果不将 WrapMode 设置为 true，我还没有找到一种方法。但是，您应该能够通过将单元格的宽度设置为足够宽以在一行上显示所有项目来“欺骗”DataGridView 执行此操作。
这是一个使用 ComboBo 完成的示例。
于 2013-04-17T16:30:26.663 回答
0
此类获取DataGridView实例并添加用于修剪多行省略号 (...) 的宽度和高度的行为。
用法：
MultilineTriming.Init(ref dataGridView); // that's it!
享受，
public static class MultilineTriming
{
private static int _rowMargins;
public static void Init(ref DataGridView dataGridView)
{
dataGridView.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
dataGridView.DefaultCellStyle.WrapMode = DataGridViewTriState.False;
_rowMargins = dataGridView.RowTemplate.Height - dataGridView.Font.Height;
Unregister(dataGridView);
dataGridView.CellEndEdit += DataGridViewOnCellEndEdit;
dataGridView.CellPainting += DataGridViewOnCellPainting;
dataGridView.RowsAdded += DataGridViewOnRowsAdded;
dataGridView.Disposed += DataGridViewOnDisposed;
}
private static void DataGridViewOnRowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
{
DataGridView view = sender as DataGridView;
DataGridViewRow row = view.Rows[e.RowIndex];
foreach (DataGridViewCell cell in row.Cells)
{
if (cell.FormattedValue == null)
{
continue;
}
Size size = TextRenderer.MeasureText((string)cell.FormattedValue, view.Font);
row.Height = Math.Max(size.Height + _rowMargins, row.Height);
}
}
private static void DataGridViewOnDisposed(object sender, EventArgs eventArgs)
{
DataGridView dataGridView = sender as DataGridView;
Unregister(dataGridView);
}
public static void Unregister(DataGridView dataGridView)
{
dataGridView.RowsAdded -= DataGridViewOnRowsAdded;
dataGridView.CellEndEdit -= DataGridViewOnCellEndEdit;
dataGridView.CellPainting -= DataGridViewOnCellPainting;
}
private static void DataGridViewOnCellEndEdit(object sender, DataGridViewCellEventArgs e)
{
DataGridView view = sender as DataGridView;
DataGridViewRow row = view.Rows[e.RowIndex];
DataGridViewCell cell = row.Cells[e.ColumnIndex];
string text = (string)cell.FormattedValue;
if (string.IsNullOrEmpty(text)) return;
Size size = TextRenderer.MeasureText(text, view.Font);
row.Height = Math.Max(size.Height + _rowMargins, row.Height);
}
private static void DataGridViewOnCellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.ColumnIndex == -1 || e.RowIndex == -1 || e.FormattedValue == null)
{
return;
}
e.Paint(e.ClipBounds, DataGridViewPaintParts.All ^ DataGridViewPaintParts.ContentForeground);
DataGridView view = sender as DataGridView;
string textToDisplay = TrimTextToFit(string.Format("{0}", e.FormattedValue), (int)(e.CellBounds.Width * 0.96) - 3, e.CellBounds.Height - _rowMargins, view.Font);
bool selected = view.Rows[e.RowIndex].Cells[e.ColumnIndex].Selected;
SolidBrush brush = new SolidBrush(selected ? e.CellStyle.SelectionForeColor : e.CellStyle.ForeColor);
e.Graphics.DrawString(textToDisplay, view.Font, brush, e.CellBounds.X + 1, e.CellBounds.Y + _rowMargins / 2);
e.Handled = true;
}
private static string TrimTextToFit(string text, int contentWidth, int contentHeight, Font font)
{
Size size = TextRenderer.MeasureText(text, font);
if (size.Width < contentWidth && size.Height < contentHeight)
{
return text;
}
int i = 0;
StringBuilder sb = new StringBuilder();
while (i < text.Length)
{
sb.Append(text[i++]);
size = TextRenderer.MeasureText(sb.ToString(), font);
if (size.Width < contentWidth) continue;
sb.Append("...");
while (sb.Length > 3 && size.Width >= contentWidth)
{
sb.Remove(sb.Length - 4, 1);
size = TextRenderer.MeasureText(sb.ToString(), font);
}
while (i < text.Length && text[i] != Environment.NewLine[0])
{
i++;
}
}
string res = sb.ToString();
if (size.Height <= contentHeight)
{
return res;
}
string[] lines = res.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
i = lines.Length;
while (i > 1 && size.Height > contentHeight)
{
res = string.Join(Environment.NewLine, lines, 0, --i);
size = TextRenderer.MeasureText(res, font);
}
return res;
}
}
于 2013-04-25T08:08:48.323 回答
0
if ((!e.Value.Equals("OK")) && e.ColumnIndex == 6)
{
e.CellStyle.WrapMode = DataGridViewTriState.True;
//dgvObjetivos.Columns[2].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
dgvObjetivos.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.AllCells;
}
http://kshitijharma.net/2010/08/23/showing-multiline-string-in-a-datagridview-cell/
于 2013-09-25T02:02:38.520 回答