~楓花雪岳~: [C#] 調整 AutoResize 設定來觀察文字顯示效果

根據這兩篇官方文章內容
How to: Programmatically Resize Cells to Fit Content in the Windows Forms DataGridView Control
How to: Automatically Resize Cells When Content Changes in the Windows Forms DataGridView Control
來觀察 AutoResize 設定和文字變化呈現效果
using System;
using System.Drawing;
using System.Windows.Forms;

namespace Sizing
{
    public partial class Form1 : Form
    {
        // 重置功能使用參數
        private DataGridView dataGridView1;
        private string boringMeatloaf = "ground beef";
        private string boringMeatloafRanking = "*";
        private bool boringRecipe;
        private bool shortMode;
        private string thirdColumnHeader = "Main Ingredients";
        private string otherRestaurant = "Gomes's Saharan Sushi";

        public Form1()
        {
            InitializeComponent();

            InitializeDataGridView();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        #region 初始化相關

        private void btnReset_Click(object sender, EventArgs e)
        {
            Controls.Remove(dataGridView1);
            InitializeDataGridView();
        }

        private void InitializeDataGridView()
        {
            dataGridView1 = new DataGridView();
            dataGridView1.Location = new Point(0, 0);
            dataGridView1.Size = new Size(600, 400);
            Controls.Add(dataGridView1);

            AddColumns();
            PopulateRows();

            shortMode = false;
            boringRecipe = true;

            void AddColumns()
            {
                dataGridView1.ColumnCount = 4;
                dataGridView1.ColumnHeadersVisible = true;

                // 設定 HeaderCell Style
                DataGridViewCellStyle columnHeaderStyle = new DataGridViewCellStyle();
                columnHeaderStyle.BackColor = Color.Aqua;
                columnHeaderStyle.Font = new Font("Verdana", 12, FontStyle.Bold);
                dataGridView1.ColumnHeadersDefaultCellStyle = columnHeaderStyle;

                int colIndex = 0;
                dataGridView1.Columns[colIndex++].Name = "Recipe";
                dataGridView1.Columns[colIndex++].Name = "Category";
                dataGridView1.Columns[colIndex++].Name = thirdColumnHeader;
                dataGridView1.Columns[colIndex++].Name = "Rating";
            }

            void PopulateRows()
            {
                string[] row1 = { "Meatloaf", "Main Dish", boringMeatloaf, boringMeatloafRanking };
                string[] row2 = { "Key Lime Pie", "Dessert", "lime juice, evaporated milk", "****" };
                string[] row3 = { "Orange-Salsa Pork Chops", "Main Dish", "pork chops, salsa, orange juice", "****" };
                string[] row4 = { "Black Bean and Rice Salad", "Salad", "black beans, brown rice", "****" };
                string[] row5 = { "Chocolate Cheesecake", "Dessert", "cream cheese", "***" };
                string[] row6 = { "Black Bean Dip", "Appetizer", "black beans, sour cream", "***" };
                object[] rows = new object[] { row1, row2, row3, row4, row5, row6 };

                foreach (string[] row in rows)
                    dataGridView1.Rows.Add(row);

                foreach (DataGridViewRow row in dataGridView1.Rows)
                {
                    if (row.IsNewRow)
                        break;

                    row.HeaderCell.Value = "Restaurant " + row.Index;
                }
            }
        }

        #endregion

        #region 文字變化相關

        private void btnChangeColumn3Header_Click(object sender, EventArgs e)
        {
            // 設定第三欄位 ColumnHeader 文字說明
            shortMode = !shortMode;
            string headerText = shortMode ? "S" : thirdColumnHeader;
            dataGridView1.Columns[2].HeaderText = headerText;
        }

        private void btnChangeMeatloafRecipe_Click(object sender, EventArgs e)
        {
            // 設定第一筆資料的資料內容
            boringRecipe = !boringRecipe;

            if (boringRecipe)
            {
                SetMeatloaf(boringMeatloaf, boringMeatloafRanking);
            }
            else
            {
                string greatMeatloafRecipe =
                    "1 lb. lean ground beef, "
                    + "1/2 cup bread crumbs, 1/4 cup ketchup,"
                    + "1/3 tsp onion powder, "
                    + "1 clove of garlic, 1/2 pack onion soup mix "
                    + " dash of your favorite BBQ Sauce";

                SetMeatloaf(greatMeatloafRecipe, "***");
            }

            void SetMeatloaf(string recipe, string rating)
            {
                dataGridView1.Rows[0].Cells[2].Value = recipe;
                dataGridView1.Rows[0].Cells[3].Value = rating;
            }
        }

        private void btnChangeRestaurant2_Click(object sender, EventArgs e)
        {
            // 設定第三筆 RowHeader 文字說明
            bool isOtherRestaurant = dataGridView1.Rows[2].HeaderCell.Value.Equals(otherRestaurant);
            string rowHeaderText = isOtherRestaurant ? "Restaurant 2" : otherRestaurant;
            dataGridView1.Rows[2].HeaderCell.Value = rowHeaderText;
        }

        #endregion

        #region AutoResize - Column 相關

        private void btnSizeThirdColumn_Click(object sender, EventArgs e)
        {
            // 設定第三個欄位的 Header 寬度，可以顯示全部內容
            dataGridView1.AutoResizeColumn(2, DataGridViewAutoSizeColumnMode.ColumnHeader);
        }

        private void btnSizeColumnHeaders_Click(object sender, EventArgs e)
        {
            // 設定全部 ColumnHeader 高度
            dataGridView1.AutoResizeColumnHeadersHeight(2);
        }

        private void btnSizeAllColumns_Click(object sender, EventArgs e)
        {
            // 設定全部 Column 寬度可以顯示全部內容
            dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCells);
        }

        #endregion

        #region AutoResize - Row 相關

        private void btnSizeAllRowsandRowHeaders_Click(object sender, EventArgs e)
        {
            // 設定全部 Row 寬度
            dataGridView1.AutoResizeRows(DataGridViewAutoSizeRowsMode.AllCells);
        }

        private void btnSizeFirstRowHeaderUsingAllHeaders_Click(object sender, EventArgs e)
        {
            // 根據第一筆資料來設定 RowHeader 寬度
            dataGridView1.AutoResizeRowHeadersWidth(0, DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);
            // 設定 RowHeader 寬度
            // dataGridView1.AutoResizeRowHeadersWidth(DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);
        }

        private void btnSizeThirdRow_Click(object sender, EventArgs e)
        {
            // 搭配 btnSizeAllRowsandRowHeaders_Click 才看得出效果
            dataGridView1.AutoResizeRow(2, DataGridViewAutoSizeRowMode.AllCellsExceptHeader);
        }

        private void btnSizeAllRows_Click(object sender, EventArgs e)
        {
            // 搭配 btnSizeAllRowsandRowHeaders_Click 才看得出效果
            dataGridView1.AutoResizeRows(DataGridViewAutoSizeRowsMode.AllCellsExceptHeaders);
        }

        #endregion
    }
}
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