如何使用可resize的单元格来制作TableLayoutPanel，例如使用Splitter

得到TableLayoutPanel有1列，单元格所需的N行可以像单元格之间的Splitter组件一样resize。 不使用SplitContainer。

可能是没有TableLayoutPanel的任何其他想法？

Answer 1

这实际上取决于你想用它做什么： DataGridView带来了交互性，但它的单元既不是控件也不是容器。

您可以尝试此TableLayoutPanel子类执行您想要的操作：

 public partial class SplitTablePanel : TableLayoutPanel { public int SplitterSize { get; set; } int sizingRow = -1; int currentRow = -1; Point mdown = Point.Empty; int oldHeight = -1; bool isNormal = false; List TlpRows = new List(); int[] rowHeights = new int[0]; public SplitTablePanel() { InitializeComponent(); this.MouseDown += SplitTablePanel_MouseDown; this.MouseMove += SplitTablePanel_MouseMove; this.MouseUp += SplitTablePanel_MouseUp; this.MouseLeave += SplitTablePanel_MouseLeave; SplitterSize = 6; } void SplitTablePanel_MouseLeave(object sender, EventArgs e) { Cursor = Cursors.Default; } void SplitTablePanel_MouseUp(object sender, MouseEventArgs e) { getRowRectangles(SplitterSize); } void SplitTablePanel_MouseMove(object sender, MouseEventArgs e) { if (!isNormal) nomalizeRowStyles(); if (TlpRows.Count <= 0) getRowRectangles(SplitterSize); if (rowHeights.Length <= 0) rowHeights = GetRowHeights(); if (e.Button == System.Windows.Forms.MouseButtons.Left) { if (sizingRow < 0) return; int newHeight = oldHeight + eY - mdown.Y; sizeRow(sizingRow, newHeight); } else { currentRow = -1; for (int i = 0; i < TlpRows.Count; i++) if (TlpRows[i].Contains(e.Location)) { currentRow = i; break;} Cursor = currentRow >= 0 ? Cursors.SizeNS : Cursors.Default; } } void SplitTablePanel_MouseDown(object sender, MouseEventArgs e) { mdown = Point.Empty; sizingRow = -1; if (currentRow < 0) return; sizingRow = currentRow; oldHeight = rowHeights[sizingRow]; mdown = e.Location; } void getRowRectangles(float size) { // get a list of mouse sensitive rectangles float sz = size / 2f; float y = 0f; int w = ClientSize.Width; int[] rw = GetRowHeights(); TlpRows.Clear(); for (int i = 0; i < rw.Length - 1; i++) { y += rw[i]; TlpRows.Add(new RectangleF(0, y - sz, w, size)); } } void sizeRow(int row, int newHeight) { // change the height of one row if (newHeight == 0) return; if (sizingRow < 0) return; SuspendLayout(); rowHeights = GetRowHeights(); if (sizingRow >= rowHeights.Length) return; if (newHeight > 0) RowStyles[sizingRow] = new RowStyle(SizeType.Absolute, newHeight); ResumeLayout(); rowHeights = GetRowHeights(); getRowRectangles(SplitterSize); } void nomalizeRowStyles() { // set all rows to absolute and the last one to percent=100! if (rowHeights.Length <= 0) return; rowHeights = GetRowHeights(); RowStyles.Clear(); for (int i = 0; i < RowCount - 1; i++) { RowStyle cs = new RowStyle(SizeType.Absolute, rowHeights[i]); RowStyles.Add(cs); } RowStyles.Add ( new RowStyle(SizeType.Percent, 100) ); isNormal = true; } } } 

Answer 2

除了TaW的好答案之外，这里还有一个方法可以调整行和列的大小，并关闭一个小错误，如果控件被resize（ – >在TaW的代码中，分割器矩形也没有resize）。

 using System; using System.Collections.Generic; using System.Drawing; using System.Windows.Forms; namespace SomeNameSpace.Controls { public partial class SplitTableLayoutPanel : TableLayoutPanel { public int SplitterSize { get; set; } int sizingRow = -1; int currentRow = -1; Point mdown = Point.Empty; int oldHeight = -1; bool isNormalRow = false; List tlpRows = new List(); int[] rowHeights = new int[0]; int sizingCol = -1; int currentCol = -1; int oldWidth = -1; bool isNormalCol = false; List tlpCols = new List(); int[] colWidths = new int[0]; public SplitTableLayoutPanel() { InitializeComponent(); this.MouseDown += SplitTablePanel_MouseDown; this.MouseMove += SplitTablePanel_MouseMove; this.MouseUp += SplitTablePanel_MouseUp; this.MouseLeave += SplitTablePanel_MouseLeave; this.Resize += SplitTablePanel_Resize; SplitterSize = 6; } void SplitTablePanel_Resize(object sender, EventArgs e) { getRowRectangles(SplitterSize); getColRectangles(SplitterSize); } void SplitTablePanel_MouseLeave(object sender, EventArgs e) { Cursor = Cursors.Default; } void SplitTablePanel_MouseUp(object sender, MouseEventArgs e) { getRowRectangles(SplitterSize); getColRectangles(SplitterSize); } void SplitTablePanel_MouseMove(object sender, MouseEventArgs e) { bool r = rowMove(sender, e); bool c = colMove(sender, e); if (r && !c) Cursor = Cursors.SizeNS; else if (!r && c) Cursor = Cursors.SizeWE; else if (r && c) Cursor = Cursors.SizeAll; else Cursor = Cursors.Default; } bool rowMove(object sender, MouseEventArgs e) { bool isMove = false; if (!isNormalRow) nomalizeRowStyles(); if (tlpRows.Count <= 0) getRowRectangles(SplitterSize); if (rowHeights.Length <= 0) rowHeights = GetRowHeights(); if (e.Button == System.Windows.Forms.MouseButtons.Left) { if (sizingRow < 0) return false; int newHeight = oldHeight + eY - mdown.Y; sizeRow(sizingRow, newHeight); isMove = true; } else { currentRow = -1; for (int i = 0; i < tlpRows.Count; i++) if (tlpRows[i].Contains(e.Location)) { currentRow = i; isMove = true; break; } } return isMove; } bool colMove(object sender, MouseEventArgs e) { bool isMove = false; if (!isNormalCol) nomalizeColStyles(); if (tlpCols.Count <= 0) getColRectangles(SplitterSize); if (colWidths.Length <= 0) colWidths = GetColumnWidths(); if (e.Button == System.Windows.Forms.MouseButtons.Left) { if (sizingCol < 0) return false; int newWidth = oldWidth + eX - mdown.X; sizeCol(sizingCol, newWidth); isMove = true; } else { currentCol = -1; for (int i = 0; i < tlpCols.Count; i++) if (tlpCols[i].Contains(e.Location)) { currentCol = i; isMove = true; break; } } return isMove; } void SplitTablePanel_MouseDown(object sender, MouseEventArgs e) { mdown = Point.Empty; rowDown(); colDown(); mdown = e.Location; } void rowDown() { sizingRow = -1; if (currentRow < 0) return; sizingRow = currentRow; oldHeight = rowHeights[sizingRow]; } void colDown() { sizingCol = -1; if (currentCol < 0) return; sizingCol = currentCol; oldWidth = colWidths[sizingCol]; } void getRowRectangles(float size) { // get a list of mouse sensitive rectangles float sz = size / 2f; float y = 0f; int w = ClientSize.Width; int[] rw = GetRowHeights(); tlpRows.Clear(); for (int i = 0; i < rw.Length - 1; i++) { y += rw[i]; tlpRows.Add(new RectangleF(0, y - sz, w, size)); } } void getColRectangles(float size) { // get a list of mouse sensitive rectangles float sz = size / 2f; float x = 0f; int h = ClientSize.Height; int[] rw = GetColumnWidths(); tlpCols.Clear(); for (int i = 0; i < rw.Length - 1; i++) { x += rw[i]; tlpCols.Add(new RectangleF(x - sz, 0, size, h)); } } void sizeRow(int row, int newHeight) { // change the height of one row if (newHeight == 0) return; if (sizingRow < 0) return; SuspendLayout(); rowHeights = GetRowHeights(); if (sizingRow >= rowHeights.Length) return; if (newHeight > 0) RowStyles[sizingRow] = new RowStyle(SizeType.Absolute, newHeight); ResumeLayout(); rowHeights = GetRowHeights(); getRowRectangles(SplitterSize); } void sizeCol(int col, int newWidth) { // change the height of one row if (newWidth == 0) return; if (sizingCol < 0) return; SuspendLayout(); colWidths = GetColumnWidths(); if (sizingCol >= colWidths.Length) return; if (newWidth > 0) ColumnStyles[sizingCol] = new ColumnStyle(SizeType.Absolute, newWidth); ResumeLayout(); colWidths = GetColumnWidths(); getColRectangles(SplitterSize); } void nomalizeRowStyles() { // set all rows to absolute and the last one to percent=100! if (rowHeights.Length <= 0) return; rowHeights = GetRowHeights(); RowStyles.Clear(); for (int i = 0; i < RowCount - 1; i++) { RowStyle cs = new RowStyle(SizeType.Absolute, rowHeights[i]); RowStyles.Add(cs); } RowStyles.Add ( new RowStyle(SizeType.Percent, 100) ); isNormalRow = true; } void nomalizeColStyles() { // set all rows to absolute and the last one to percent=100! if (colWidths.Length <= 0) return; colWidths = GetColumnWidths(); ColumnStyles.Clear(); for (int i = 0; i < ColumnCount - 1; i++) { ColumnStyle cs = new ColumnStyle(SizeType.Absolute, colWidths[i]); ColumnStyles.Add(cs); } ColumnStyles.Add ( new ColumnStyle(SizeType.Percent, 100) ); isNormalCol = true; } } }