无法添加自定义列标题

Question

Good Day.. I have a gridview and it is showing columns as shown in diagram above

I would like to replace column names from ID Name Task Total Sale etc

But I am unable to do it

When I give header text, or edit column, it adds the rows from database NOT below the header text

Please Guide

Thanks

This is what Search button does when clicked:

private void button3_Click_1(object sender, EventArgs e)
    {

        SqlConnection  strg = new SqlConnection("Data Source=RANA;Initial Catalog=PlacementCellProject;Integrated Security=True;Pooling=False");
        //SqlConnection cn = new SqlConnection(strg);
        SqlDataAdapter sdf = new SqlDataAdapter("select ID, name, task, total_sale, owner, worker, tdate, payment_status from saloonworkers where tdate between '" + dateTimePicker2.Value.ToString() + "' and '" + dateTimePicker3.Value.ToString() + "' ", strg);
        DataTable sd=new DataTable();
        sdf.Fill(sd);
        dataGridView1.DataSource=sd;
        SqlDataReader dr;
    }

And this is OnLoad initializatoin:

    public Form6()
    {
        InitializeComponent();
        textBox3.Text = "";
        showworkers();
        ownershare();
        workershare();
        dataGridView1.Columns[0].HeaderText = "I";

       //  dataGridView1.Columns["ID"].HeaderText = "I";
      /*dataGridView1.Columns.Add("ID", "I");

        for (int i = 0; i < dataGridView1.Columns.Count; i++)
        {
            string header = dataGridView1.Columns[i].HeaderText;
        }*/

    }

Answer 1

If you binding data you can use property "DisplayName".

[DisplayName("Name")]

public string FirstName {get;set;}

Also you can onload page put header text like this

grid.Columns[0].HeaderText = "Name";

OK, you try first in OnLoad method change headers which not exist, add your code from button to onload and next change yours headers. FIRST add datasource next change headers.

Answer 2

After binding the DataSource to DataGridView . Try change the HeaderText .

sampleGridView.DataSource = stu;
sampleGridView.Columns[0].HeaderText = "ID";

Answer 3

<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="ContactName" HeaderText="Contact Name" ItemStyle-Width="150px" />
        <asp:BoundField DataField="City" HeaderText="City" ItemStyle-Width="100px" />
        <asp:BoundField DataField="Country" HeaderText="Country" ItemStyle-Width="100px" />
    </Columns>
</asp:GridView>

you will set column name before databind. i hope it's help you

Answer 4

private void BindGrid()
        {
            string constring = @"Data Source=.\SQL2005;Initial Catalog=Northwind;User id = sa;password=pass@123";
            using (SqlConnection con = new SqlConnection(constring))
            {
                using (SqlCommand cmd = new SqlCommand("SELECT * FROM Customers", con))
                {
                    cmd.CommandType = CommandType.Text;
                    using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
                    {
                        using (DataTable dt = new DataTable())
                        {
                            sda.Fill(dt);

                            //Set AutoGenerateColumns False
                            dataGridView1.AutoGenerateColumns = false;

                            //Set Columns Count
                            dataGridView1.ColumnCount = 3;

                            //Add Columns
                            dataGridView1.Columns[0].Name = "CustomerId";
                            dataGridView1.Columns[0].HeaderText = "Customer Id";
                            dataGridView1.Columns[0].DataPropertyName = "CustomerID";

                            dataGridView1.Columns[1].HeaderText = "Contact Name";
                            dataGridView1.Columns[1].Name = "Name";
                            dataGridView1.Columns[1].DataPropertyName = "ContactName";

                            dataGridView1.Columns[2].Name = "Country";
                            dataGridView1.Columns[2].HeaderText = "Country";
                            dataGridView1.Columns[2].DataPropertyName = "Country";
                            dataGridView1.DataSource = dt;
                        }
                    }
                }
            }
        }

Please use given code.i am sure it's help you.

Answer 5

首先，您需要加载数据源，然后更改标题文本

sampleGridView.Columns[0].HeaderText = "ID";