'I have a value that i retrieve from a view and i have to pass that value through 2 views, but that is passing a null value to the variabel asp.net
I'm developing a scholl project and i need to pass the variable ApZona retrieved in the view Filtros1
<form asp-action="Filtros">
<center>
<div style="margin-bottom:2%;">
<p>Filtrar entre APs ou Zonas</p>
<div style="margin-bottom:2%; width:70%; text-align:center; text-align-last:center ">
<select asp-for="ApZona" class="form-control">
<option value="null"> Escolha AP´s ou zonas</option>
<option value="aps"> AP's </option>
<option value="zonas"> Zonas </option>
</select>
</div
</div>
<div class="form-group"style="margin-bottom:2%;margin-top:2%;">
<input type="submit" value="Consultar" class="btn btn-primary" />
</div>
<center>
</form>
, and pass that variable ApZona to the view Filtros(that arrives correctly),
<form asp-action="Index">
<center>
<div class="form-group">
<div style="margin-bottom:2%; margin-top:2%;">
<p>Introduza a data inicial </p>
<input id="Inicial" type="datetime-local" name="Inicial" />
</div>
<div style="margin-bottom:2%;" >
<p>Introduza a data final </p>
<input id="Final" type="datetime-local" name="Final" />
</div>
<div style="margin-bottom:2%;">
<p>Acessos ou Visistas</p>
<div style=" width:70%; text-align-last:center">
<select asp-for="AcessoVisita" class="form-control">
<option value="null">Escolha uma opção para o filtro</option>
<option value="sessao">Número de Sessoes</option>
<option value="visitas">Número de Visitas</option>
</select>
</div>
</div>
<div style="margin-bottom:2%;">
<p>Dia/Mes/Ano</p>
<div style=" width:70%; text-align-last:center;margin-bottom:2%;">
<select asp-for="tempo" class="form-control">
<option value="null"> Escolha uma opção para o filtro </option>
<option value="day"> Dia </option>
<option value="month"> Mês </option>
<option value="year"> Ano </option>
</select>
</div
</div
@if(Model.ApZona == "aps")
{
<div style="margin-bottom:2%;">
<p>Escolha os AP's que quer verificar</p>
<div style="margin-bottom:2%; width:70%; text-align:center; text-align-last:center ">
<select asp-for="ap" class="form-control">
<option value="null"> Escolha um Ap ou todos</option>
<option value="todos"> Todos os AP's' </option>
@foreach(var i in Model.Aps)
{
<option [email protected]_id> @i.ap_name </option>
}
</select>
</div
</div>
}
else
{
<div style="margin-bottom:2%;">
<p>Escolha os AP's que quer verificar</p>
<div style="margin-bottom:2%; width:70%; text-align:center; text-align-last:center ">
<select asp-for="ap" class="form-control">
<option value="null"> Escolha um Ap ou todos</option>
<option value="todos"> Todas as zonas </option>
@foreach(var i in Model.Zones)
{
<option [email protected]_id> @i.zone_name </option>
}
</select>
</div
</div>
}
<div class="form-group"style="margin-bottom:2%;margin-top:2%;">
<input type="submit" value="Consultar" class="btn btn-primary" />
</div>
</div>
<center>
</form>
And then to the view Index(that arrives as null)
There is the code of my Controllers.
public IActionResult Filtros1()
{
dadosPassar ds = new dadosPassar();
return View(ds);
}
public IActionResult Filtros(dadosPassar ds)
{
Console.WriteLine("Filtros");
dadosPassar dp = new dadosPassar();
dp.ApZona = ds.ApZona;
if (ds.ApZona == "null")
{
return View("Filtros1");
}
else
if(ds.ApZona == "aps")
{
var objAPs = _db.L_AccessPoint.ToList();
dp.Aps = objAPs;
return View(dp);
}
else
{
var objZones = _db.L_Zone.ToList();
dp.Zones = objZones;
return View(dp);
}
Thats where i verify the values but the ds.ApZona arrives as null.
public IActionResult Index(dadosPassar ds)
{
var model = new dadosPassar();
if (ds.Inicial >=ds.Final || ds.AcessoVisita == "null" || ds.tempo == "null" || ds.ap== "null" || ds.ApZona == "null")
{
var objAPs = _db.L_AccessPoint.ToList();
model.Aps = objAPs;
model.ApZona = ds.ApZona;
return View("Filtros", model);
}
So how can i do to pass the variable value to the view Index. How can I pass the value to the view Index? Can you help me passing the variable value into the view Index?
Solution 1:[1]
Please add the[HttpPost] Attribute on the target method as follow:
[Httppost]
public IActionResult Filtros(dadosPassar ds)
{
}
in your view:
<form asp-action="Index" method="post">
......
<form>
in your controller:
public IActionResult Index()
{
}
[httpPost]
public IActionResult Index(dadosPassar ds)
{
}
If you don't add [httpPost] on your action,it will be a httpget method in default
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 |