Enable GridView BoundField for Editing if field value is greater than Zero(0) in ASP.Net

Hi das,

I have created sample code which fullfill requirement.

HTML

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" OnRowEditing="OnRowEditing">
    <Columns>
        <asp:BoundField DataField="C#" HeaderText="C#" ItemStyle-Width="150" />
        <asp:BoundField DataField="Java" HeaderText="Java" ItemStyle-Width="150" />
        <asp:BoundField DataField="PHP" HeaderText="PHP" ItemStyle-Width="150" />
        <asp:CommandField ShowEditButton="true" />
    </Columns>
</asp:GridView>

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("C#", typeof(int));
        dt.Columns.Add("Java", typeof(int));
        dt.Columns.Add("PhP", typeof(int));
        dt.Rows.Add(10, 5, 0);
        dt.Rows.Add(5, 5, 0);
        dt.Rows.Add(8, 0, 0);
        ViewState["dt"] = dt;
        this.BindGrid();
    }
}
protected void BindGrid()
{
    GridView1.DataSource = ViewState["dt"] as DataTable;
    GridView1.DataBind();
}

protected void OnRowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    int asp = Convert.ToInt32(GridView1.Rows[e.NewEditIndex].Cells[0].Text);
    int java = Convert.ToInt32(GridView1.Rows[e.NewEditIndex].Cells[1].Text);
    int php = Convert.ToInt32(GridView1.Rows[e.NewEditIndex].Cells[2].Text);
    this.BindGrid();
    GridView1.Rows[e.NewEditIndex].Cells[2].Enabled = php > 0;
    GridView1.Rows[e.NewEditIndex].Cells[1].Enabled = java > 0;
    GridView1.Rows[e.NewEditIndex].Cells[0].Enabled = asp > 0;
}

Screenshot

I hope works for you.