searching using enter key on windows application?

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Dear All,

I am new to c# , i have one text box and one gridview when user type something in textbox to search, the gridview is filled succesfully when clicked on search button .
but my concern is instaed of search button use ENTER KEY TO search data in gridview.

pls help me to compelete this

thx in advance !!!!

Posted 29-Nov-12 22:11pm

Master Vinu

Updated 29-Nov-12 22:38pm

v2

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Master Vinu 30-Nov-12 6:06am

THANKS EVERYONE.............

4 solutions

Solution 2

Hi,

Your WebForm code is

XML

<div>

           <asp:TextBox ID="TextBox1" onkeypress="return EnterEvent(event)" runat="server"></asp:TextBox>
           <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
           <br />
           <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

       </div>

and you should write a js function

XML

<script>
        function EnterEvent(e) {
            if (e.keyCode == 13) {
                __doPostBack('<%= Button1.ClientID %>', "");
            }
        }
    </script>

And Button Click code is simple,

C#

protected void Button1_Click(object sender, EventArgs e)
      {
          Label1.Text = "Search completed";
      }

You can catch Enter KeyPress like that.

Regards

Posted 29-Nov-12 22:36pm

thursunamy

Updated 29-Nov-12 22:37pm

v2

Comments

Master Vinu 30-Nov-12 4:37am

i need for windoes form not for web form sorry i have not mention in question

Solution 3

This is the code how I search for a number value in a datagridview:

C#

private void SearchProject()
{
    int rowIndex = -1;
    bool found = false;

    dgvProjects.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
    try
    {
        //Set a string to search for
        int searchValue = int.Parse(tbSearchValue.Text);

        foreach (DataGridViewRow row in dgvProjects.Rows)
        {
            int compareValue = int.Parse(row.Cells[2].Value.ToString());

            if (compareValue.Equals(searchValue))
            {
                found = true;
                rowIndex = row.Index;
                dgvProjects.Rows[row.Index].Selected = true;
                dgvProjects.FirstDisplayedScrollingRowIndex = rowIndex;
                break;
            }
        }

        if (!found)
            MessageBox.Show("Project number not found.\n\nBe sure you're searching for the right project number.", "Project not found",
                MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
    }
    catch (FormatException)
    {
        MessageBox.Show("Your input is not a number.", "Input Error",
            MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
}

row.Cells[2] is the column where to look at. So I am searching for values, entered by a user in a textbox, in all rows (the foreach block)in the 3rd column (they are zero-based, for that I'm using value [2]).

Call the SearchProject() on a button Click Event:

C#

private void btnSearch_Click(object sender, EventArgs e)
{
    SearchProject();
}

Or when the user presses Enter in the textbox:

C#

private void tbSearchValue_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Enter)
        SearchProject();
}

Posted 29-Nov-12 23:53pm

Frans Jan

Solution 1

try this code.

C#

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

namespace Company_Accounts
{
    public partial class FrmUserSelection : Form
    {
        DataSet ds =new DataSet();
        public FrmUserSelection()
        {
            InitializeComponent();
           
        }

        private void FrmUserSelection_Load(object sender, EventArgs e)
        {
            ds.Clear();
            fillgrid();
            ControlBox = false;
            usdgv.Columns[0].SortMode = DataGridViewColumnSortMode.NotSortable;
            txtwildsearch.Focus();
            this.usdgv.Columns["Password"].Visible = false;
            
        }

        private void fillgrid()
        {
            //ds.Clear();
            //usdgv.DataSource = ds;
            ConnectionString.cnn.Open();
            SqlDataAdapter da = new SqlDataAdapter("select username as [User Name],Password,Title, userrole,logincomputer as [Login Computer] ,logindate as [Login Date] ,Logintime as [Login Time] from login", ConnectionString.cnn);
            da.Fill(ds, "tbl_login");
            usdgv.DataSource = ds.Tables["tbl_login"];
            ConnectionString.cnn.Close();
        }

        private void usdgv_CellMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e)
        {
            FrmUser.dr = usdgv.CurrentRow;
            fillgrid();
            this.Close();
        }

        private void btnwildsearch_Click(object sender, EventArgs e)
        {
            FrmUser.dr = usdgv.CurrentRow;
            this.Close();
        }

        private void usdgv_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            label1.Text ="" +usdgv.Columns[usdgv.CurrentCell.ColumnIndex].HeaderText + " ";
            s1.Text = "" + usdgv.Columns[usdgv.CurrentCell.ColumnIndex].HeaderText + " ";
            s2.Text = "" + usdgv.Columns[usdgv.CurrentCell.ColumnIndex].HeaderText + " ";
            s3.Text = "" + usdgv.Columns[usdgv.CurrentCell.ColumnIndex].HeaderText + " ";
        }

        private void txtwildsearch_TextChanged(object sender, EventArgs e)
        {
            DataView dt = ds.Tables[0].DefaultView;
            string tbcolumn;
            try
            {
                tbcolumn = usdgv.Columns[usdgv.CurrentCell.ColumnIndex].HeaderText.ToString();
                dt.RowFilter = string.Format("" + tbcolumn + " ='{0}'", txtwildsearch.Text);
                if (dt.Count > 0)
                {
                    usdgv.DataSource = dt;

                }
                else
                {
                    usdgv.DataSource = 0;
                    // dataGridView1.DataSource = ds.Tables[0];

                    //  MessageBox.Show("Record not Found");

                    // fillgrid();

                }
                if (usdgv.RowCount == 0)
                {
                    usdgv.DataSource = ds.Tables[0].DefaultView;

                }
            }
            catch (Exception)
            {

            }
        }
    }
}

Posted 29-Nov-12 22:28pm

Zain -Ul- Arifeen

Updated 29-Nov-12 22:38pm

v2

Comments

Master Vinu 30-Nov-12 4:35am

thx zain--i have tried below code but not working

private void textBox3_TextChanged(object sender, KeyPressEventArgs e1, EventArgs e)
{
if (e1.KeyCode == Keys.Enter)
{
string sql = "[DocEntry],[JobCardNo],[ITEMNAME],[OD] ,[PlanQty],[FinalInspectionRemarks] ,[OrderDate] ,[Division] WHERE JobCardNo ='" + textBox3.Text.ToString() + "'";
SqlDataAdapter da = new SqlDataAdapter(sql, objConn1);
DataSet ds = new DataSet();
objConn1.Open();
da.Fill(ds, "ProductionInventoryReport");
dataGridView1.DataSource = ds;
//dataGridView1.DataBind();
dataGridView1.DataMember = "ProductionInventoryReport";
objConn1.Close();
e1.Handled = true;
}

}
i have tried this but not working

Sergey Alexandrovich Kryukov 16-Jun-13 15:34pm

One biggest abuse in this code is empty catch block, a sure way to have all kind of poorly detectable troubles. Usually, the best solution is to avoid using local try-catch block, but try-finally is fine and often necessary.
—SA

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Master Vinu · Accepted Answer · 2012-11-30T00:06:00

private void findjobsap_KeyPress(object sender, KeyPressEventArgs e)
           {
               if (e.KeyChar == (char)13)
               {
                   string sql = "select [DocEntry],[JobCardNo],[ITEMNAME],[OD] ,[PlanQty],[FinalInspectionRemarks] ,[OrderDate] ,[Division] from SAPProduction.ProductionInventoryReport WHERE JobCardNo ='" + findjobsap.Text.ToString() + "'";
                   SqlDataAdapter da = new SqlDataAdapter(sql, objConn1);
                   DataSet ds = new DataSet();
                   objConn1.Open();
                   da.Fill(ds, "ProductionInventoryReport");
                   dataGridView1.DataSource = ds;
                   //dataGridView1.DataBind();
                   dataGridView1.DataMember = "ProductionInventoryReport";
                   objConn1.Close();
                   e.Handled = true;
               }


      }

searching using enter key on windows application?

4 solutions

Solution 2

Solution 3

Solution 4

Solution 1

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