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GridView row data Shown in FormView. Change Mode & Save data

Terry

Terry

9y
566
1
 
Hello,
 
    In ASP.NET WebForms app, I have a Gridview whose data is shown in From View when a row is selected from the GridView. I have New, Save, Edit & Cancel buttons outside Grid & Form View's. 
 
    My FormView in aspx :
 
<asp:FormView ID="inqFormView" runat="server" DataKeyNames="Id"
ItemType="VincitoreCRMApplication.Models.Inquiry" DefaultMode="ReadOnly"
Width="100%" Height="206px" CssClass="panel panel-default"
style="background-color: white; border-radius:8px; margin-top:-1px;"
OnModeChanging="inqFormView_ModeChanging" >
I am facing couple of problems & queries regarding the buttons & actions on Form View : 
  1. In my editBtn, I change the Mode of FormView to Edit, but it is not changing  - it remains in ItemTemplate only. MY code of editBtn :
protected void editInquiryBtn_Click(object sender, EventArgs e)
{
newInquiry.Visible = false;
editInquiry.Visible = false;
saveInquiry.Visible = true;
cancelBtn.Visible = true;
TaskTitle = "Update Inquiry Details";
//Tried to set item to be edited in FormView 
inqFormView_GetItem(5);
inqFormView.ChangeMode(FormViewMode.Edit);
// inqFormView.DataBind();   // IF I ENABLE THIS LINE, THEN NO DATA IS SHOWN
saveInquiry.CommandArgument = EditArgs;
return;
}
  • Once able to edit, user clicks o the "Save" btn (that is outside of Grid & Form Views')  I want to someway fire the Update call of FormView & the data gets updated.
  • I have an EmptyDataTemplate in FromView, with just empty text boxes. When their is no data, the FromView is just hidden (not visible). I want the form to be seen when when their is no data. For this, in Page_Load, in is(! IsPostback ) , I am calling 
    inqFormView_GetItem(-1);
    public Inquiry inqFormView_GetItem(int id)
    {
    // If their i no item of the id passed, adds an empty item and sends it. But it doesn't work
    Inquiry item = new Inquiry();
    item.Id = 0;
    List<Inquiry> items = _db.Inquiries.Where(s => s.Id == id).ToList<Inquiry>();
    if (items.Count > 0)
    {
    item = items[0];
    }
    else
    items.Add(item);
    return item;
    }
     
     For ModeChanging, I added the event also, but that is never fired at all :
    protected void inqFormView_ModeChanging(object sender, FormViewModeEventArgs e)
    {
    inqFormView.ChangeMode(e.NewMode);
    inqFormView.DataBind();
    }
     
    Can you please help me with these problems and guide me achieve the goal.
    Any help is highly appreciated.
     
    Thanks. 
 
 
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