ToolStripButton Click Event Could not checkbox checked status For DataGridView in WindowsForm

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Whenever i clicked toolstripbutton after checking the checkbox inside datagridview in

"windows Form" form its always showing the checked status of checkbox as "false" .

I have attached the sample code below which can highlight my issue

Kindly assist me

Thanks

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
           

            DataTable table2 = new DataTable("medications");
            table2.Columns.Add("id");
            table2.Columns.Add("medication");
            table2.Rows.Add(1, "atenolol");
            table2.Rows.Add(2, "amoxicillin");

            // Create a DataSet and put both tables in it.
            DataSet set = new DataSet("office");
            set.Tables.Add(table2);

            dataGridView1.AutoGenerateColumns = true;
            dataGridView1.DataSource = set; // dataset
            dataGridView1.DataMember = "medications";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            List<DataGridViewRow> rows_with_checked_column = new List<DataGridViewRow>();
            foreach (DataGridViewRow row in dataGridView1.Rows)
            {
                if (Convert.ToBoolean(row.Cells["chk"].Value) == true)
                {
                    //rows_with_checked_column.Add(row);
                    MessageBox.Show("Checked");
                }
                else
                {
                    MessageBox.Show("not Checked");
                }
            }
        }

        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.ColumnIndex == 0)
            {
                foreach (DataGridViewRow dr in dataGridView1.Rows)
                {
                    dr.Cells[0].Value = false;//sıfırın
                }
            }

        }

        private void toolStripButton2_Click(object sender, EventArgs e)
        {
            List<DataGridViewRow> rows_with_checked_column = new List<DataGridViewRow>();
            foreach (DataGridViewRow row in dataGridView1.Rows)
            {
                if (Convert.ToBoolean(row.Cells["chk"].Value) == true)
                {
                    //rows_with_checked_column.Add(row);
                    MessageBox.Show("Checked");
                }
                else
                {
                    MessageBox.Show("not Checked");
                }
            }
        }

        private void toolStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {

        }
    }
}

C#

namespace WindowsFormsApplication1
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <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);
        }

        #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()
        {
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
            this.dataGridView1 = new System.Windows.Forms.DataGridView();
            this.chk = new System.Windows.Forms.DataGridViewCheckBoxColumn();
            this.Column2 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.button1 = new System.Windows.Forms.Button();
            this.tabControl1 = new System.Windows.Forms.TabControl();
            this.tabPage1 = new System.Windows.Forms.TabPage();
            this.tabPage2 = new System.Windows.Forms.TabPage();
            this.toolStrip1 = new System.Windows.Forms.ToolStrip();
            this.toolStripButton2 = new System.Windows.Forms.ToolStripButton();
            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
            this.tabControl1.SuspendLayout();
            this.tabPage1.SuspendLayout();
            this.toolStrip1.SuspendLayout();
            this.SuspendLayout();
            // 
            // dataGridView1
            // 
            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
            this.chk,
            this.Column2});
            this.dataGridView1.Location = new System.Drawing.Point(9, 37);
            this.dataGridView1.Name = "dataGridView1";
            this.dataGridView1.Size = new System.Drawing.Size(240, 150);
            this.dataGridView1.TabIndex = 0;
            this.dataGridView1.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView1_CellContentClick);
            // 
            // chk
            // 
            this.chk.HeaderText = "Column1";
            this.chk.Name = "chk";
            // 
            // Column2
            // 
            this.Column2.HeaderText = "Column2";
            this.Column2.Name = "Column2";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(-1, 227);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // tabControl1
            // 
            this.tabControl1.Controls.Add(this.tabPage1);
            this.tabControl1.Controls.Add(this.tabPage2);
            this.tabControl1.Location = new System.Drawing.Point(12, 12);
            this.tabControl1.Name = "tabControl1";
            this.tabControl1.SelectedIndex = 0;
            this.tabControl1.Size = new System.Drawing.Size(260, 238);
            this.tabControl1.TabIndex = 2;
            // 
            // tabPage1
            // 
            this.tabPage1.Controls.Add(this.toolStrip1);
            this.tabPage1.Controls.Add(this.dataGridView1);
            this.tabPage1.Location = new System.Drawing.Point(4, 22);
            this.tabPage1.Name = "tabPage1";
            this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
            this.tabPage1.Size = new System.Drawing.Size(252, 212);
            this.tabPage1.TabIndex = 0;
            this.tabPage1.Text = "tabPage1";
            this.tabPage1.UseVisualStyleBackColor = true;
            // 
            // tabPage2
            // 
            this.tabPage2.Location = new System.Drawing.Point(4, 22);
            this.tabPage2.Name = "tabPage2";
            this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
            this.tabPage2.Size = new System.Drawing.Size(252, 212);
            this.tabPage2.TabIndex = 1;
            this.tabPage2.Text = "tabPage2";
            this.tabPage2.UseVisualStyleBackColor = true;
            // 
            // toolStrip1
            // 
            this.toolStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.toolStripButton2});
            this.toolStrip1.Location = new System.Drawing.Point(3, 3);
            this.toolStrip1.Name = "toolStrip1";
            this.toolStrip1.Size = new System.Drawing.Size(246, 25);
            this.toolStrip1.TabIndex = 1;
            this.toolStrip1.Text = "toolStrip1";
            this.toolStrip1.ItemClicked += new System.Windows.Forms.ToolStripItemClickedEventHandler(this.toolStrip1_ItemClicked);
            // 
            // toolStripButton2
            // 
            this.toolStripButton2.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
            this.toolStripButton2.Image = ((System.Drawing.Image)(resources.GetObject("toolStripButton2.Image")));
            this.toolStripButton2.ImageTransparentColor = System.Drawing.Color.Magenta;
            this.toolStripButton2.Name = "toolStripButton2";
            this.toolStripButton2.Size = new System.Drawing.Size(31, 22);
            this.toolStripButton2.Text = "Edit";
            this.toolStripButton2.Click += new System.EventHandler(this.toolStripButton2_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 262);
            this.Controls.Add(this.tabControl1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
            this.tabControl1.ResumeLayout(false);
            this.tabPage1.ResumeLayout(false);
            this.tabPage1.PerformLayout();
            this.toolStrip1.ResumeLayout(false);
            this.toolStrip1.PerformLayout();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.DataGridView dataGridView1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.DataGridViewCheckBoxColumn chk;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column2;
        private System.Windows.Forms.TabControl tabControl1;
        private System.Windows.Forms.TabPage tabPage1;
        private System.Windows.Forms.TabPage tabPage2;
        private System.Windows.Forms.ToolStrip toolStrip1;
        private System.Windows.Forms.ToolStripButton toolStripButton2;
    }
}

Posted 6-Jun-15 7:04am

meeran1234

Updated 7-Jun-15 4:10am

Deepu S Nair

v2

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Comments

Ralf Meier 7-Jun-15 8:42am

At first : that code is not VB ... 8)

Then : have you check what happens and when it happens in "dataGridView1_CellContentClick" ?

meeran1234 7-Jun-15 10:44am

Hi ,

I had replied to you could you please check the thread .

Thanks

Ralf Meier 7-Jun-15 14:22pm

I have seen what you have written. Did you read what I have written ?
My guess is that the method "dataGridView1_CellContentClick" do what you don't want that it is done.
Could you please check this by setting a Breakpoint in this method to see when it is called and how often ...?

1 solution

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meeran1234 · Answer 1 · 2015-06-07T03:59:00

Hi Ralf Meier,

Apologies, for not adding c#.net tag , as i had difficulty in adding c#.net tag.

I want to get the checkbox selected status in the toolstripbutton click event but eventhough i selected the checkbox its always returns false .

But if i use normal button its working properly .

The Above code sample will highlight my issue.

C#

private void toolStripButton2_Click(object sender, EventArgs e)
        {
            List<datagridviewrow> rows_with_checked_column = new List<datagridviewrow>();
            foreach (DataGridViewRow row in dataGridView1.Rows)
            {

                if (Convert.ToBoolean(row.Cells["chk"].Value) == true)
                {
                    //rows_with_checked_column.Add(row);
                    MessageBox.Show("Checked");
                }
                else
                {
                    MessageBox.Show("not Checked");
                }
            }
        }
</datagridviewrow></datagridviewrow>