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  • winformDatagridviev dataGridViewCheckBoxColumn关于TrueValue的问题

    dataGridViewCheckBoxColumn的TrueValue设置为0,但显示时默认还是不选中

    using System;
    using System.IO;
    using System.Collections.Generic;
    using System.Windows.Forms;

    public class TriValueVirtualCheckBox:Form
    {
    DataGridView dataGridView1 = new DataGridView();

    const int initialSize = 5;

    Dictionary<int, int> store
    = new Dictionary<int, int>();

    public TriValueVirtualCheckBox() : base()
    {
    Text = this.GetType().Name;
    store.Add(0, 0);
    store.Add(1, 1);
    store.Add(2, 1);
    store.Add(3, 1);
    store.Add(4, 0);
    Controls.Add(dataGridView1);
    dataGridView1.VirtualMode = true;
    dataGridView1.AllowUserToDeleteRows = false;
    dataGridView1.CellValueNeeded += new
    DataGridViewCellValueEventHandler(dataGridView1_CellValueNeeded);
    dataGridView1.CellValuePushed += new
    DataGridViewCellValueEventHandler(dataGridView1_CellValuePushed);

    dataGridView1.Columns.Add(CreateCheckBoxColumn());
    dataGridView1.Rows.AddCopies(0, initialSize);
    }

    private DataGridViewCheckBoxColumn CreateCheckBoxColumn()
    {
    DataGridViewCheckBoxColumn dataGridViewCheckBoxColumn1
    = new DataGridViewCheckBoxColumn();
    dataGridViewCheckBoxColumn1.HeaderText = "Lights On";
    dataGridViewCheckBoxColumn1.TrueValue =0;
    dataGridViewCheckBoxColumn1.FalseValue = 1;
    return dataGridViewCheckBoxColumn1;
    }

    #region "data store maintance"
    private void dataGridView1_CellValueNeeded(object sender,
    DataGridViewCellValueEventArgs e)
    {
    //e.Value = store[e.RowIndex];
    }

    private void dataGridView1_CellValuePushed(object sender,
    DataGridViewCellValueEventArgs e)
    {

    }
    #endregion

    [STAThreadAttribute()]
    public static void Main()
    {
    Application.Run(new TriValueVirtualCheckBox());
    }
    }

    public enum LightStatus
    {
    Unknown,
    TurnedOn,
    TurnedOff
    };

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  • 原文地址:https://www.cnblogs.com/huangtailang/p/2320849.html
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