Is there a viewbag variable (or something of the sort) I can set that once I get back into the View, I can make that second button visisble? : The Official Microsoft ASP.NET Forums

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wsyeager36

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385 Points

Is there a viewbag variable (or something of the sort) I can set that once I get back into the Vi...

Oct 04, 2012 12:50 PM|LINK

Is there a viewbag variable (or something of the sort) I can set that once I get back into the View, I can make that second button visisble?

Yeah but since I am not a big fan of ViewBag I would suggest you adding a boolean property to your model and then set this property in the POST controller action.

[HttpPost]
public ActionResult SomeAction(MyViewModel model)
{
    model.IsSecondButtonVisible = true;
    return View(model);

and then inside the view:

@if (Model.IsSecondButtonVisible) 
{ 
    <input type="button" value="the second button" /> 
}

Seems like when I'm coing back from into the View, looks like I'll need to set some kind of html attribute (based on whether the button should be visibile) that says to make the button visible. How would I accomplish that???

Thanks,

Bill Yeager
MCP.Net, BCIP

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ignatandrei

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Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 04, 2012 12:57 PM|LINK

wsyeager36
Yeah but since I am not a big fan of ViewBag I would suggest you adding a boolean property to your model

This is a question or an answer?!

My .NET blog : http://msprogrammer.serviciipeweb.ro/ |2012 Programmer tools

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wsyeager36

Member

385 Points

458 Posts

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 04, 2012 01:21 PM|LINK

I totally agree... For now, I just want to be able to see via if the hidden attribute of the button can be changed to unhidden based on a value in a viewbag or preferably model.

Once I know it's working with the Viewbag item. I can implement in the Model....

So, the question still remains as to how I can cahnge the hidden attribute of a button to not being hidden based on a value coming back into the view (via a viewbag - for now, or a model).

Thanks,

Bill Yeager
MCP.Net, BCIP

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ignatandrei

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Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 04, 2012 01:27 PM|LINK

wsyeager36
how I can cahnge the hidden attribute of a button to not being hidden based on a value coming back into the view

ModelState.RemoveKey - before setting value.

My .NET blog : http://msprogrammer.serviciipeweb.ro/ |2012 Programmer tools

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wsyeager36

Member

385 Points

458 Posts

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 04, 2012 02:48 PM|LINK

Sorry, I don't quite understand....

If I remove the key from model state, when coming back into the View, how is that going to allow me to make visible the btnGeneratePDF button?

Below is the markup of the View:

FConverterModel.ViewModels.ViewModelTemplate_Guarantors

@{
    ViewBag.Title = "BHG :: PDF Generator";
}
<h2>@ViewBag.Message</h2>

<div>

    <table style="width: 1000px">
        <tr>
            <td colspan="5">
                <img alt="BHG Logo" src="~/Images/logo.gif" />
            </td>
        </tr>

        @using (Html.BeginForm("Refresh", "Home", FormMethod.Post))
        {
            <tr>
                <td>
                <label for="txtLoanID">Loan ID:</label>
                @*@(Html.Kendo().NumericTextBox<int>()
                        .Name("txtLoanID")
                        .Placeholder("Enter numeric value")
                )*@

                @Html.Label("lblLoanID", "Loan ID: ")
                @Html.TextBox("txtLoanID")
                <td colspan="3">
                    <input type="submit" id="btnRefresh" value='Refresh' />
                </td>
            </tr>
            <tr>
                <td>@Html.Label("lblLoanType1", "Loan Type: ")
                    @Html.Label("lblLoanType2", "SBA")
                </td>
                <td>
                    <label for="ddlDept">Department:</label>
                    @(Html.Kendo().DropDownList()
                            .Name("ddlDept")
                            .DataTextField("DepartmentName")
                            .DataValueField("DepartmentID")
                            .Events(e => e.Change("Refresh"))
                            .DataSource(source =>
                            {
                                source.Read(read =>
                                {
                                    read.Action("GetDepartments", "Home");
                                });
                            })
                    )
                    @(Html.Hidden("ddlDeptText"))
                </td>
            </tr>
        }

        @if (ViewBag.ShowTemps == true)
        {
            using (Html.BeginForm("GeneratePDF", "Home", FormMethod.Post))
            {
            <tr id="trTempLbl" aria-disabled="true" aria-hidden="true">
                <td colspan="5">
                    <b>@Html.Label("lbl_Templates", "Templates:")</b>
                </td>
            </tr>
            <tr id="trTempData" aria-disabled="true" aria-hidden="true">
                @foreach (var item in Model.Templates)
                {
                    <td>
                        @Html.CheckBoxFor(model => Convert.ToBoolean(item.IsChecked));
                            @Html.LabelFor(model => item.TemplateName)
                    </td>
                }
            </tr>
            <tr id="trGuarLbl" aria-disabled="true" aria-hidden="true">
                <td colspan="5">
                    <b>@Html.Label("lbl_Guarantor", "Guarantor(s):")</b>
                </td>
            </tr>
            <tr id="trGuarData" aria-disabled="true" aria-hidden="true">
                @foreach (var item in Model.Guarantors)
                {
                    <td>
                        @Html.CheckBoxFor(model => Convert.ToBoolean(item.isChecked));
                            @Html.LabelFor(model => item.GuarantorFirstName + " " + item.GuarantorLastName)
                    </td>
                }
            </tr>
            <tr>
                <td>
                    <input type="submit" id="btnGeneratePDF" value='Generate PDF' hidden="hidden" />
                </td>
            </tr>
            <tr>
                <td colspan="5">
                    <b>@ViewBag.Error</b>
                </td>
            </tr>
            }
        }
    </table>
</div>

<script type="text/javascript">

    $(document).ready(function () {
        $("#ddlDept").prepend("<option value='All' selected='selected'></option>");
    });

    var txtLoanID;

    $("#btnRefresh").click(function () {
        Refresh();
    });

    function Refresh() {

        var txtLoanID = $("#txtLoanID").val();

        if (txtLoanID != "") {
            $("#ddlDeptText").val(this.text());
            document.forms["btnRefresh"].submit();
        }
}

Thanks,

Bill Yeager
MCP.Net, BCIP

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danielhead

Member

172 Points

36 Posts

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 04, 2012 07:01 PM|LINK

wsyeager36

Yeah but since I am not a big fan of ViewBag I would suggest you adding a boolean property to your model and then set this property in the POST controller action.
[HttpPost]
public ActionResult SomeAction(MyViewModel model)
{
    model.IsSecondButtonVisible = true;
    return View(model);
and then inside the view:
@if (Model.IsSecondButtonVisible) 
{ 
    <input type="button" value="the second button" /> 
} 
Seems like when I'm coing back from into the View, looks like I'll need to set some kind of html attribute (based on whether the button should be visibile) that says to make the button visible. How would I accomplish that???

Does this not do what you want? If not what about something like the below?

<input type="button" style="@(Model.IsSecondButtonVisible ? "display:none;" : "display:block;" )" value="the second button" />

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ignatandrei

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21599 Posts

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MVP

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 05, 2012 01:50 AM|LINK

wsyeager36
If I remove the key from model state, when coming back into the View, how is that going to allow me to make visible the btnGeneratePDF button?

yes. You do not want what it comes from the view, you want just set the value in the post

ModelState.RemoveKey("IsSecondButtonVisible");

model.IsSecondButtonVisible = true;

My .NET blog : http://msprogrammer.serviciipeweb.ro/ |2012 Programmer tools

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kakashi0124

Member

449 Points

102 Posts

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 05, 2012 05:35 AM|LINK

Hi there,

I don't 100% get what you need but seems like you wanna send the data back to the POST setting IsSecondButtonVisible to true.

So when page is initiall loaded, you need something like this on the code

@Html.HiddenFor(model => model.IsSecondButtonVisible)

Then what ever you do on the screen, you can set the value of this field using javascript / jquery

$('#IsSecondButtonVisible').val('true')
or
$('#IsSecondButtonVisible').val('false')

Then on the postback you can do this

[HttpPost]
public ActionResult SomeAction(MyViewModel model)
{
    //model.IsSecondButtonVisible is set to true or false by the page
    return View(model);
}

Then you can use your code to display button or not

@if (Model.IsSecondButtonVisible) 
{ 
    <input type="button" value="the second button" /> 
}

Reply

wsyeager36

Member

385 Points

458 Posts

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 05, 2012 04:11 PM|LINK

This is more or less what I want...

I set up the following, but it still thinks the loanid is set to null when I get back into the View. Can you please verify what I'm doing is correct? I've used dataanootations before, worked fine, and I don't know why this is giving me such issues...

_Layout.cshtml

<script src="~/Scripts/jquery-1.7.1.min.js"></script> <script src="~/Scripts/jquery.validate.min.js"></script> <script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script> <script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script> <script src="~/Scripts/modernizr-2.5.3.js"></script> 
 <script src="@Url.Content("~/Scripts/kendo/2012.2.913/kendo.all.min.js")"></script>
	<script src="@Url.Content("~/Scripts/kendo/2012.2.913/kendo.aspnetmvc.min.js")"></script>

Validation class

namespace PDFService03Validation.Validations
{
    [MetadataType(typeof(PDFService03_Validation))]
    public partial class PDFService03Validation 
    {

    }

    public partial class PDFService03_Validation
    {
        public class PDFService03
        {
            [Required(ErrorMessage = "Loan ID Required")] [DataType(DataType.Text)] public string LoanID { get; set; } 
            [Required(ErrorMessage = "Loan Type Required")]
            [DataType(DataType.Text)]
            public string LoanType { get; set; }

            [Required(ErrorMessage = "Department Name Required")]
            [DataType(DataType.Text)]
            public string SelectedDeptText { get; set; }
        }
    }
}

ViewModel

public class ViewModelTemplate_Guarantors
    {
        public int SelectedTemplateId { get; set; }
        public IEnumerable<PDFTemplate> Templates { get; set; }

        public int SelectedGuarantorId { get; set; }
        public IEnumerable<tGuarantor> Guarantors { get; set; }

        public string LoanId { get; set; }
        public string SelectedDeptText { get; set; }
        public string LoanType { get; set; }

        public bool ShowTemps { get; set; }
        public string Error { get; set; }
        public string ErrorT { get; set; }
        public string ErrorG { get; set; }
        public bool ShowGeneratePDFBtn { get; set; }     }

Controller

public ActionResult Index(ViewModelTemplate_Guarantors model)
        {
            ViewBag.Error = "";
            model.ShowGeneratePDFBtn = false;             return View();
        }

View

@model PDFConverterModel.ViewModels.ViewModelTemplate_Guarantors 
@{
    ViewBag.Title = "BHG :: PDF Generator";
}
<h2>@ViewBag.Message</h2>

<div>

    <table style="width: 1000px">
        <tr>
            <td colspan="5">
                <img alt="BHG Logo" src="~/Images/logo.gif" />
            </td>
        </tr>

        @using (Html.BeginForm("Refresh", "Home", FormMethod.Post, new { id = "frmTemps" }))
        {  
            <tr>
                <td>
                @*@(Html.Kendo().NumericTextBox<int>()
                        .Name("txtLoanID")
                        .Placeholder("Enter numeric value")
                )*@

                @Html.LabelFor(model => model.LoanId)
                @Html.TextBoxFor(model => model.LoanId)
                @Html.ValidationMessageFor(model => model.LoanId)
                <td colspan="3">
                    <input type="submit" id="btnRefresh" value='Refresh' />
                </td>
            </tr>
            <tr>
                <td>@Html.LabelFor(model => model.LoanType)
                    @Html.TextBox("SBA", "SBA")
                    @Html.ValidationMessageFor(model => model.LoanType)
                    @*@Html.TextBoxFor(model => model.LoanType)*@
                </td>
                <td>
                    <label for="ddlDept">Department:</label>
                    @(Html.Kendo().DropDownListFor(model => model.SelectedDeptText)
                            .Name("ddlDept")
                            .DataTextField("DepartmentName")
                            .DataValueField("DepartmentID")
                            .Events(e => e.Change("Refresh"))
                            .DataSource(source =>
                            {
                                source.Read(read =>
                                {
                                    read.Action("GetDepartments", "Home");
                                });
                            })
                    )
                    @Html.ValidationMessageFor(model => model.SelectedDeptText)
                </td>
            </tr>
        }

        @if (Model.ShowGeneratePDFBtn == true)         {
            using (Html.BeginForm("GeneratePDF", "Home", FormMethod.Post))
            {
                if (Model.ErrorT != string.Empty)
                {
            <tr>
                <td colspan="5">
                    <u><b>@Html.Label("Templates:")</b></u>
                </td>
            </tr>
            <tr>
                @foreach (var item in Model.Templates)
                {
                    <td>
                        @Html.CheckBoxFor(model => Convert.ToBoolean(item.IsChecked));
                                @Html.LabelFor(model => item.TemplateName)
                    </td>
                }
            </tr>
                }
                else
                {
                    Model.Error = Model.ErrorT;
                }

                if (Model.ErrorG != string.Empty)
                {
            <tr>
                <td colspan="5">
                    <u><b>@Html.Label("Guarantors:")</b></u>
                </td>
            </tr>
            <tr>
                @foreach (var item in Model.Guarantors)
                {
                    <td>
                        @Html.CheckBoxFor(model => Convert.ToBoolean(item.isChecked));
                                @Html.LabelFor(model => item.GuarantorFirstName + " " + item.GuarantorLastName)
                    </td>
                }
            </tr>
                }
                else
                {
                    Model.Error = Model.ErrorG;
                }
            <tr>
                <td>
                    <input type="submit" id="btnGeneratePDF" value='Generate PDF' hidden="hidden" />
                </td>
            </tr>
            <tr>
                <td colspan="5">
                    @Model.Error
                </td>
            </tr>
            }
        }
    </table>

</div>

<script type="text/javascript">

    $(document).ready(function () {
        $("#ddlDept").prepend("<option value='All' selected='selected'></option>");
    });

    var txtLoanID;

    $('btnRefresh').on('click', '#btnRefresh', function () {
        Refresh();
    });

    function Refresh() {

        var LoanID = $("#LoanID").val();

        if (LoanID != "") {
            document.forms["frmTemps"].submit();
        }
    }
</script>

Thanks,

Bill Yeager
MCP.Net, BCIP

Edited by wsyeager36 on Oct 05, 2012 04:15 PM

Reply

wsyeager36

Member

385 Points

458 Posts

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

Oct 05, 2012 08:22 PM|LINK

Actually, by putting in the following from my return on my View, it updated the Model for the initial time and was orignally set to fasle which I wanted.

On subsequent hits, the value turned to true once I got data from the database.

public ActionResult Index(ViewModelTemplate_Guarantors model)
        {
            ViewBag.Error = "";
            model.ShowGeneratePDFBtn = false;
            return View("Index", model);
        }

By alos doing this, the second button is within the IF block of the above so only gets displayed if the above switch is set to true.

Thanks,

Bill Yeager
MCP.Net, BCIP

Edited by wsyeager36 on Oct 05, 2012 08:25 PM

Is there a viewbag variable (or something of the sort) I can set that once I get back into the View, I can make that second button visisble? RSS

9 replies

wsyeager36

Is there a viewbag variable (or something of the sort) I can set that once I get back into the Vi...

ignatandrei

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

wsyeager36

wsyeager36

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

ignatandrei

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

wsyeager36

wsyeager36

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

danielhead

Re: Is there a viewbag variable (or something of the sort) I can set that once I get back into th...

wsyeager36

ignatandrei

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wsyeager36

kakashi0124

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wsyeager36

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wsyeager36

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