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c#winformsdatagridviewdatatabletextbox

How to get selected row's all column values of dataGridView in TextBoxes


I am working on windows form application.

It contains two form MainForm - Test and childForm - Search

Search form has dataGridView control.It contains columns like SrNo, TypeNo, TestEngineer and Date. And Test form contains textBoxes tb_SerialNo, tb_TypeNo, tb_TestEngineer, datTimePicker for date.

My main Question is when I select Row from datagridview, I want SrNo column value from that row in textbox tb_SerialNo. Same for all.

I wrote following code. But it gives me only SrNo value in tb_SerialNo. but I didn't get TypeNo, TestEnginer and date values in respective textboxes. I am unable to find what i am missing. Please help me to resolve this issue. thanks in advance.

mainForm - Test Code

private void SearchToolStripMenuItem_Click(object sender, EventArgs e)
    {
        SearchTest Search = new SearchTest(dt);
        Search.ShowDialog();
        dt.DefaultView.RowFilter = "";
        tb_SerialNo.Text = Search.SerialNo;
        Search.typeNo = tb_TypeNo.Text;
        Search.TestEngineer = tb_TestEngineer.Text;
        Search.Date = dateTimePicker1.Text;
    }

ChildForm -SearTest Code :

public partial class SearchTest : Form
{
    public SearchTest(DataTable TestData)
    {
        InitializeComponent();
        dataGridView1.DataSource = TestData;
        this.dataGridView1.Sort(this.dataGridView1.Columns["SrNo"], ListSortDirection.Ascending);
    }


    private void btn_Search_Click(object sender, EventArgs e)
    {
        string str = dateTimePicker1.Text;
        string str1 = dateTimePicker2.Text;

        DateTime date = DateTime.ParseExact(str, "MM/dd/yyyy", CultureInfo.GetCultureInfo("en-GB"));
        DateTime date1 = DateTime.ParseExact(str1, "MM/dd/yyyy", CultureInfo.GetCultureInfo("en-GB"));
        string dtFilter = string.Format("[Date] >= '{0} ' AND [Date] <= '{1} '", date.ToString("MM/dd/yyyy"), date1.ToString("MM/dd/yyyy"));
        (dataGridView1.DataSource as DataTable).DefaultView.RowFilter = dtFilter;

    }

    private void tb_SearchSrNo_TextChanged(object sender, EventArgs e)
    {
        try
        {
            (dataGridView1.DataSource as DataTable).DefaultView.RowFilter = String.IsNullOrEmpty(tb_SearchSrNo.Text) ?
                "SrNo IS NOT NULL" :
                String.Format("SrNo LIKE '{0}%' OR SrNo LIKE '{1}%' OR SrNo LIKE '{2}%'", tb_SearchSrNo.Text, tb_SearchSrNo.Text, tb_SearchSrNo.Text);
        }
        catch (System.Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }

    private void SearchTest_Load(object sender, EventArgs e)
    {
        groupBox1.Enabled = false;
        groupBox3.Enabled = false;
        cb_Filter.MouseWheel += new MouseEventHandler(cb_Filter_MouseWheel);
    }

    private void cb_Filter_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (cb_Filter.SelectedIndex == 0)
        {
            groupBox1.Enabled = true;
        }
        else
        {
            groupBox3.Enabled = true;
        }
    }
    void cb_Filter_MouseWheel(object sender, MouseEventArgs e)
    {
        ((HandledMouseEventArgs)e).Handled = true;
    }

    private string SrNo;
    private string TypeNo;
    private string TestEng;
    private string date;

    public string SerialNo
    {
        get { return SrNo; }
        set { SrNo = value; }
    }
    public string typeNo
    {
        get { return TypeNo; }
        set { TypeNo = value; }
    }
    public string TestEngineer
    {
        get { return TestEng; }
        set { TestEng = value; }
    }
    public string Date
    {
        get { return date; }
        set { date = value; }
    }
    private void dataGridView1_SelectionChanged(object sender, EventArgs e)
    {
        SrNo = dataGridView1.CurrentRow.Cells["SrNo"].Value.ToString();
        TypeNo = dataGridView1.CurrentRow.Cells["TypeNo"].Value.ToString();
        TestEng = dataGridView1.CurrentRow.Cells["TestEngineer"].Value.ToString();
        date = dataGridView1.CurrentRow.Cells["Date"].Value.ToString();
    }

}

Solution

  • You can change the property definitions to something like this:

    public string SomeProperty
    {
        get 
        { 
            string value = null;
            if(BindingContext[dataGridView1.DataSource].Current !=null)
            {  
               var r = ((DataRowView)BindingContext[dataGridView1.DataSource].Current).Row;    
               value = r.Field<string>("SomeDataColumn");
            }
            return value;
        }
    }
    

    This way, the SomeProperty will always return the value of SomeDataColumn from the active row.