asp.net mvc2

Anji Chelloju

13y713.NET

Hello every one......

I have a problem with folllowing code .if any one found the answer plz help me

controller:

public ActionResult submitaddrole(RolesForm form)

{

if (ModelState.IsValid==true)

{

SaveResultData result = BL_RoleProcessor.saveRoledata(form, SessionData.getSessionData(Session));

if (result.result == true)

{

ViewData[MessageData.message] = "Role has been added successfully";

return View("message");

}

else

{

ViewData.Model = form;

ModelState.AddModelError("", result.message);

return View("addrole");

}

return View("addrole");------------------------>when model.isvalid false i am getting null refernce exception in my addrole view

}

addrole view code:

<% for (int rownum = 0; rownum < rmods.Count(); rownum++)

{

RoleModuleForm rform = rmods[rownum];

<% if (rform.parentmoduleno == null)

{ %>

<% }

else

{

<% } %>

<% =rform.modulecaption%>

<%= Html.HiddenFor(model => model.moduleno[rownum], Model.moduleno[rownum])%>

<% if (rform.is_add_applicable == true)

{ %>

<%= Html.CheckBoxFor(model => model.is_add[rownum], Model.is_add[rownum])%>

<% } %>

<% else

{ %>

<%= Html.HiddenFor(model => model.is_add[rownum], Model.is_add[rownum])%>

<% } %>

<% if (rform.is_edit_applicable == true)

{ %>

<%= Html.CheckBoxFor(model => model.is_edit[rownum], Model.is_edit[rownum])%>

<% } %>

<% else

{ %>

<%= Html.HiddenFor(model => model.is_edit[rownum], Model.is_edit[rownum])%>

<% } %>

<% if (rform.is_delete_applicable == true)

{ %>

<%= Html.CheckBoxFor(model => model.is_delete[rownum], Model.is_delete[rownum])%>

<% } %>

<% else

{ %>

<%= Html.HiddenFor(model => model.is_delete[rownum], Model.is_delete[rownum])%>

<% } %>

<% if (rform.is_view_applicable == true)

{ %>

<%= Html.CheckBoxFor(model => model.is_view[rownum], Model.is_view[rownum])%>

<% } %>

<% else

{ %>

<%= Html.HiddenFor(model => model.is_view[rownum], Model.is_view[rownum])%>

<% } %>

<% if (rform.is_approve_applicable == true)

{ %>

<%= Html.CheckBoxFor(model => model.is_approve[rownum], Model.is_approve[rownum])%>

<% } %>

<% else

{ %>

<%= Html.HiddenFor(model => model.is_approve[rownum], Model.is_approve[rownum])%>

<% } %>

<%} %>

plz help me.............

9 Replies

Know the answer? Post it — somebody with the same question will find it here.

Iftikar Hussain13y ago
Accepted answer
your view should return the model instead of string

public ActionResult submitaddrole(RolesForm form)
{

if (ModelState.IsValid==true)
{
SaveResultData result = BL_RoleProcessor.saveRoledata(form, SessionData.getSessionData(Session));
if (result.result == true)
{
ViewData[MessageData.message] = "Role has been added successfully";
}
else
{
ViewData.Model = form;
ModelState.AddModelError("", result.message);
}
}
return View(form);
}

Regards,
Iftikar
0
Iftikar Hussain13y ago
you welcome. Please mark it answer so that it will help others

Regards,
Iftikar
0
Anji Chelloju13y ago
thank u very much iftikar
0
Anji Chelloju13y ago
[Required] [StringLength(39,ErrorMessage="Role name must be less than 39 characters")] [RegularExpression("^[a-zA-Z]+$", ErrorMessage = "Use letters only please")] [DataType(DataType.Text)] [DisplayName("Rolename")] public string rolename { get; set; } [Required] [StringLength(100, ErrorMessage="Description must be less than 100 charcters")] [RegularExpression("^[a-zA-Z]+$", ErrorMessage = "Use letters only please")] [DataType(DataType.MultilineText)] [DisplayName("Description")] public string description { get; set; } public int roleno { get; set; } public bool is_active { get; set; } public bool is_admin { get; set; } public bool is_operator { get; set; } public bool is_approver { get; set; }
0
Iftikar Hussain13y ago
share me the which model it is bind it

Regards,
Iftikar
0
Anji Chelloju13y ago
thank u for reply........yes it is strongly typed view
0
Iftikar Hussain13y ago
is it your view is strongly bind with any model?

Regards,
Iftikar
0
Anji Chelloju13y ago
thank for your reply.......yes
0
Iftikar Hussain13y ago
Hi,
Is your View return type is string?

Regards,
Iftikar
0