C# 将文本添加到 DataGridView 行标题
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Adding Text to DataGridView Row Header
提问by Bailz
Does C# allow you to add a String to a RowHeader in a DataGridView? If so, how is it accomplished?
C# 是否允许您向 DataGridView 中的 RowHeader 添加字符串？如果是这样，它是如何实现的？
I'm writing a Windows Form to displayed Customer Payment Data for the year so far.
到目前为止，我正在编写一个 Windows 窗体来显示今年的客户付款数据。
The ColumnHeaders display January, February, March, etc... and rather than have a blank column with DateTime.Now.Year I would like to put it in the RowHeader to make it stand out from the actual payment data.
ColumnHeaders 显示 1 月、2 月、3 月等......而不是一个带有 DateTime.Now.Year 的空白列，我想将它放在 RowHeader 中，使其从实际支付数据中脱颖而出。
回答by BFree
Yes. First, hook into the column added event:
是的。首先，钩入列添加的事件：
this.dataGridView1.ColumnAdded += new DataGridViewColumnEventHandler(dataGridView1_ColumnAdded);
Then, in your event handler, just append the text you want to:
然后，在您的事件处理程序中，只需附加您想要的文本：
private void dataGridView1_ColumnAdded(object sender, DataGridViewColumnEventArgs e)
{
e.Column.HeaderText += additionalHeaderText;
}
回答by Chris Doggett
You don't have to use the RowValidated event, that's just the one I used for a little test app to make sure this worked, but this will set the row (not column) header text to whatever year you specify.
您不必使用 RowValidated 事件，这只是我用于一个小测试应用程序以确保其有效的事件，但这会将行（而不是列）标题文本设置为您指定的任何年份。
It would probably go better in the CellFormatting event, actually.
实际上，它在 CellFormatting 事件中可能会更好。
private void dataGridView_RowValidated(object sender, DataGridViewCellEventArgs e)
{
DataGridView gridView = sender as DataGridView;
if (null != gridView)
{
gridView.Rows[e.RowIndex].HeaderCell.Value = "2009";
}
}
EDIT: Here's the entire TestForm I used, as simple as possible to demonstrate the solution. Make sure your RowHeadersWidthis wide enough to display the text.
编辑：这是我使用的整个 TestForm，尽可能简单地演示解决方案。确保您的RowHeadersWidth足够宽以显示文本。
#region
using System.ComponentModel;
using System.Windows.Forms;
#endregion
namespace DataGridViewTest
{
public class GridTest : Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private IContainer components;
private DataGridView dataGridView1;
private DataGridViewTextBoxColumn Month;
public GridTest()
{
InitializeComponent();
}
/// <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);
}
private void dataGridView_RowValidated(object sender, DataGridViewCellEventArgs e)
{
DataGridView gridView = sender as DataGridView;
if (null != gridView)
{
gridView.Rows[e.RowIndex].HeaderCell.Value = "2009";
}
}
#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.Month = new System.Windows.Forms.DataGridViewTextBoxColumn();
((System.ComponentModel.ISupportInitialize) (this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;
this.dataGridView1.ColumnHeadersHeightSizeMode =
System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[]
{
this.Month
});
this.dataGridView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGridView1.Location = new System.Drawing.Point(0, 0);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.RowHeadersWidth = 100;
this.dataGridView1.Size = new System.Drawing.Size(745, 532);
this.dataGridView1.TabIndex = 0;
this.dataGridView1.RowValidated +=
new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView_RowValidated);
//
// Month
//
this.Month.HeaderText = "Month";
this.Month.Name = "Month";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(745, 532);
this.Controls.Add(this.dataGridView1);
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize) (this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
}
}
回答by Monali
datagridview1.Rows[0].HeaderCell.Value = "Your text";
It works.
有用。
回答by ma7moud
yes you can
是的你可以
DataGridView1.Rows[0].HeaderCell.Value = "my text";
回答by Moon
private void dtgworkingdays_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
{
this.FillRecordNo();
}
private void FillRecordNo()
{
for (int i = 0; i < this.dtworkingdays.Rows.Count; i++)
{
this.dtgworkingdays.Rows[i].HeaderCell.Value = (i + 1).ToString();
}
}
回答by Silver
make sure the Enable Column Recordingis checked.
确保Enable Column Recording已检查。
回答by Majid
it's because of your first column (Rows Header column) width ! increase it's width then you can see it's value ! you can use this command:
这是因为您的第一列（行标题列）的宽度！增加它的宽度然后你可以看到它的价值！你可以使用这个命令：
dgv1.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders;
(notice: you must first set dgv1.RowHeadersVisible = true;)
（注意：必须先设置dgv1.RowHeadersVisible = true;）
回答by robson
I had the same problem, but I noticed that my datagrid lost the rows's header after the datagrid.visibleproperty changed.
我遇到了同样的问题，但我注意到我的数据网格在datagrid.visible属性更改后丢失了行的标题。
Try to update the rows's headers with the Datagrid.visiblechangedevent.
尝试使用Datagrid.visiblechanged事件更新行的标题。
回答by Navya
I think it should be:
我觉得应该是：
dataGridView1.Columns[0].HeaderCell.Value = "my text";
回答by Marc
Here's a little "coup de pouce"
这是一个小“政变”
Public Class DataGridViewRHEx
Inherits DataGridView
Protected Overrides Function CreateRowsInstance() As System.Windows.Forms.DataGridViewRowCollection
Dim dgvRowCollec As DataGridViewRowCollection = MyBase.CreateRowsInstance()
AddHandler dgvRowCollec.CollectionChanged, AddressOf dvgRCChanged
Return dgvRowCollec
End Function
Private Sub dvgRCChanged(sender As Object, e As System.ComponentModel.CollectionChangeEventArgs)
If e.Action = System.ComponentModel.CollectionChangeAction.Add Then
Dim dgvRow As DataGridViewRow = e.Element
dgvRow.DefaultHeaderCellType = GetType(DataGridViewRowHeaderCellEx)
End If
End Sub
End Class
Public Class DataGridViewRowHeaderCellEx
Inherits DataGridViewRowHeaderCell
Protected Overrides Sub Paint(graphics As System.Drawing.Graphics, clipBounds As System.Drawing.Rectangle, cellBounds As System.Drawing.Rectangle, rowIndex As Integer, dataGridViewElementState As System.Windows.Forms.DataGridViewElementStates, value As Object, formattedValue As Object, errorText As String, cellStyle As System.Windows.Forms.DataGridViewCellStyle, advancedBorderStyle As System.Windows.Forms.DataGridViewAdvancedBorderStyle, paintParts As System.Windows.Forms.DataGridViewPaintParts)
If Not Me.OwningRow.DataBoundItem Is Nothing Then
If TypeOf Me.OwningRow.DataBoundItem Is DataRowView Then
End If
End If
'HERE YOU CAN USE DATAGRIDROW TAG TO PAINT STRING
formattedValue = CStr(Me.DataGridView.Rows(rowIndex).Tag)
MyBase.Paint(graphics, clipBounds, cellBounds, rowIndex, dataGridViewElementState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts)
End Sub
End Class
