カスタムDataGridView列のサイズ変更イベントの処理

Question

独自のカスタムDataGridView列を実装しようとしました。私は次のコードを使ってこれを行いました。このMSDNページからの借用と変更：http://msdn.microsoft.com/en-us/library/system.windows.forms.idatagridvieweditingcontrol.aspx ここで私は、usercontrol ucFolderBrowserに、gridviewcolumnのサイズが変更され、それに応じて調整する必要があることを通知する方法を教えてください。 DataGridViewの列のサイズが変更されたときに、このイベントがトリガさん -

class FolderGridViewColumn : DataGridViewColumn 
{ 
    public FolderGridViewColumn() : base(new FolderCell()) 
    { 
    } 

    public override DataGridViewCell CellTemplate 
    { 
     get 
     { 
      return base.CellTemplate; 
     } 
     set 
     { 
      // Ensure that the cell used for the template is a FolderCell. 
      if (value != null && 
       !value.GetType().IsAssignableFrom(typeof(FolderCell))) 
      { 
       throw new InvalidCastException("Must be a FolderCell"); 
      } 
      base.CellTemplate = value; 
     } 
    } 
} 

class FolderCell : DataGridViewTextBoxCell 
{ 
    public FolderCell() : base() 
    { 
     //this.Style.Format = "";  //Can set format 
    } 

    public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle) 
    { 
     base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle); 

     FolderEditingControl ctl = DataGridView.EditingControl as FolderEditingControl; 

     // Use the default row value when Value property is null. 
     if (this.Value == null) 
     { 
      ctl.Text = (string)this.DefaultNewRowValue; 
     } 
     else 
     { 
      ctl.Text = (string)this.Value; 
     } 
    } 
    public override Type EditType 
    { 
     get 
     { 
      // Return the type of the editing control that FolderCell uses. 
      return typeof(FolderEditingControl); 
     } 
    } 
    public override Type ValueType 
    { 
     get 
     { 
      // Return the type of the value that FolderBrowserCell contains. 

      return typeof(string); 
     } 
    } 
    public override object DefaultNewRowValue 
    { 
     get 
     { 
      //default value. 
      return string.Empty; 
     } 
    } 
} 

class FolderEditingControl : ucFolderBrowser, IDataGridViewEditingControl 
{ 
    DataGridView dataGridView; 
    private bool valueChanged = false; 
    int rowIndex; 

    public FolderEditingControl() { } 

    // Implements the IDataGridViewEditingControl.EditingControlFormattedValue 
    // property. 
    public object EditingControlFormattedValue 
    { 
     get 
     { 
      return this.Text; 
     } 
     set 
     {    
      this.Text = (string) value; 
     } 
    } 

    // Implements the 
    // IDataGridViewEditingControl.GetEditingControlFormattedValue method. 
    public object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context) 
    { 
     return this.EditingControlFormattedValue; 
    } 

    // Implements the 
    // IDataGridViewEditingControl.ApplyCellStyleToEditingControl method. 
    public void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle) 
    { 
     this.Font = dataGridViewCellStyle.Font; 
     this.ForeColor = dataGridViewCellStyle.ForeColor; 
     this.BackColor = dataGridViewCellStyle.BackColor; 
    } 

    // Implements the IDataGridViewEditingControl.EditingControlRowIndex 
    // property. 
    public int EditingControlRowIndex 
    { 
     get 
     { 
      return rowIndex; 
     } 
     set 
     { 
      rowIndex = value; 
     } 
    } 

    // Implements the IDataGridViewEditingControl.EditingControlWantsInputKey 
    // method. 
    public bool EditingControlWantsInputKey(Keys key, bool dataGridViewWantsInputKey) 
    { 
     // Let the textbox handle the keys listed. 
     switch (key & Keys.KeyCode) 
     { 
      case Keys.Left: 
      case Keys.Right: 
      case Keys.Home: 
      case Keys.End: 
      default: 
       return !dataGridViewWantsInputKey; 
     } 
    } 

    // Implements the IDataGridViewEditingControl.PrepareEditingControlForEdit 
    // method. 
    public void PrepareEditingControlForEdit(bool selectAll) 
    { 
     // No preparation needs to be done. 
    } 

    // Implements the IDataGridViewEditingControl 
    // .RepositionEditingControlOnValueChange property. 
    public bool RepositionEditingControlOnValueChange 
    { 
     get 
     { 
      return false; 
     } 
    } 

    // Implements the IDataGridViewEditingControl 
    // .EditingControlDataGridView property. 
    public DataGridView EditingControlDataGridView 
    { 
     get 
     { 
      return dataGridView; 
     } 
     set 
     { 
      dataGridView = value; 
     } 
    } 

    // Implements the IDataGridViewEditingControl 
    // .EditingControlValueChanged property. 
    public bool EditingControlValueChanged 
    { 
     get 
     { 
      return valueChanged; 
     } 
     set 
     { 
      valueChanged = value; 
     } 
    } 

    // Implements the IDataGridViewEditingControl 
    // .EditingPanelCursor property. 
    public Cursor EditingPanelCursor 
    { 
     get 
     { 
      return base.Cursor; 
     } 
    } 

    protected override void OnTextChanged(EventArgs e) 
    { 
     // Notify the DataGridView that the contents of the cell 
     // have changed. 
     valueChanged = true; 
     this.EditingControlDataGridView.NotifyCurrentCellDirty(true); 
     base.OnTextChanged(e); 
    } 
} 

public partial class ucFolderBrowser : UserControl 
{ 
    public ucFolderBrowser() 
    { 
     InitializeComponent(); 
    } 

    public override string Text 
    { 
     get 
     { 
      return txtPath.Text; 
     } 
     set 
     { 
      txtPath.Text = value; 
     } 
    } 

    /// <summary> 
    /// Required method for Designer support - do not modify 
    /// the contents of this method with the code editor. 
    /// </summary> 
    private void InitializeComponent() 
    { 
     this.txtPath = new System.Windows.Forms.TextBox(); 
     this.btnBrowse = new System.Windows.Forms.Button(); 
     this.SuspendLayout(); 
     // 
     // txtPath 
     // 
     this.txtPath.Location = new System.Drawing.Point(0, 0); 
     this.txtPath.Name = "txtPath"; 
     this.txtPath.Size = new System.Drawing.Size(100, 20); 
     this.txtPath.TabIndex = 0; 
     // 
     // btnBrowse 
     // 
     this.btnBrowse.Location = new System.Drawing.Point(100, -1); 
     this.btnBrowse.Name = "btnBrowse"; 
     this.btnBrowse.Size = new System.Drawing.Size(30, 21); 
     this.btnBrowse.TabIndex = 1; 
     this.btnBrowse.Text = "..."; 
     this.btnBrowse.UseVisualStyleBackColor = true; 
     this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click); 
     // 
     // ucFolderBrowser 
     // 
     this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 
     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 
     this.Controls.Add(this.btnBrowse); 
     this.Controls.Add(this.txtPath); 
     this.Name = "ucFolderBrowser"; 
     this.Size = new System.Drawing.Size(129, 20); 
     this.ResumeLayout(false); 
     this.PerformLayout(); 

    } 
} 

Answer 1

だから解決策は、イベントのサイズを変更するユーザーコントロールを使用することで判明します。

私は、とにかく両方のコントロールをドッキングすることができるので、私はサイズ変更イベントを処理する必要もないことに気付きました。