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Binding a field state (disabled or hidden) according to different selected values in a combobox


Binding a field state (disabled or hidden) according to different selected values in a combobox

By : Justin Yao
Date : November 27 2020, 11:01 PM
Hope that helps I reworded the formulas slightly and moved the AL||AK logic into the hideAlabama formula instead of it being in the disabled property. This keeps the hidden property to a single formula evaluation, as it seemed that multiple formula evaluations were not behaving as expected.
code :
Ext.application({
    name : 'Fiddle',

    launch : function() {

    }
});

var states = Ext.create('Ext.data.Store', {
    fields: ['abbr', 'name'],
    data : [
        {"abbr":"AL", "name":"Alabama"},
        {"abbr":"AK", "name":"Alaska"},
        {"abbr":"AZ", "name":"Arizona"}
    ]
});

Ext.define('My.ViewModel', {
  extend: 'Ext.app.ViewModel',
  alias: 'viewmodel.myviewmodel',

  formulas: {
    hideAlabama: function(get) {
        return get('comboboxvalue') === 'AL' || get('comboboxvalue') === 'AK';

    },

    hideAlaska: function(get) {
      return get('comboboxvalue') === 'AK';
    },

    hideArizona: function(get) {
      return get('comboboxvalue') === 'AZ';
    }
  }
});

Ext.create('Ext.form.Panel', {
    title: 'Sign Up Form',
    width: 300,
    height: 230,
    bodyPadding: 10,
    margin: 10,

    layout: {
      type:'anchor',
        align: 'stretch'
    },

     viewModel:{
        type: 'myviewmodel'
    },

    items: [{
        xtype: 'combobox',
        fieldLabel: 'Choose State',
        store: states,
        queryMode: 'local',
        displayField: 'name',
        valueField: 'abbr',
        reference:'combobox',
        bind: {
            value: '{comboboxvalue}'
         }
    },{
        xtype: 'textfield',
        fieldLabel: 'If Alabama, hide',
        bind: {
            hidden: '{hideAlabama}'
         }
    },{
        xtype: 'textfield',
        fieldLabel: 'If Alaska, hide',
        bind: {
            hidden: '{hideAlaska}'
        }
    },{
        xtype: 'textfield',
        fieldLabel: 'If Arizona, hide',
        bind: {
            hidden: '{hideArizona}'
        }
    }],
    renderTo: Ext.getBody()
});


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Jquery Autocomplete - add selected values to hidden field

Jquery Autocomplete - add selected values to hidden field


By : Sly
Date : March 29 2020, 07:55 AM
this one helps. I'm using Jquery Autocomplete based on: http://bassistance.de/jquery-plugins/jquery-plugin-autocomplete/. I am able to select a value from the textbox and add it to a list as in the example. Is it possible to add the selected value to a hidden field? For example , To add more than one value to a hidden field:
code :
var hdnValue = $('hdnFieldName').val();
$('hdnFieldName').val(hdnValue +','+selectedValue);
Binding Telerik MVC ComboBox with US State List and passing Selected value back to Controller

Binding Telerik MVC ComboBox with US State List and passing Selected value back to Controller


By : user3116440
Date : March 29 2020, 07:55 AM
hop of those help? Found the answer on my own .Done few changes in the code as follows ..
code :
      <%: Html.TextBoxFor(model => model.EnrolRegAcntDescriptor.state, new { type="Hidden", ID = "statetext", style = "width:10px" })%> 
      function getComboBox() {


        var combobox = document.getElementById('ComboBox-value').value;
        var combotext = document.getElementById('ComboBox-input').value; 
        var index = $("#ComboBox").data("tComboBox").value();

        var states = document.getElementById('statetext').value;
        document.getElementById('statetext').value = index;                    
      //  alert(index);
        return states;
    }
Asp .net mvc 3 CheckBoxFor method outputs hidden field, that hidden field value is false when checkbox is disabled with

Asp .net mvc 3 CheckBoxFor method outputs hidden field, that hidden field value is false when checkbox is disabled with


By : Charlie
Date : March 29 2020, 07:55 AM
Any of those help The hidden field is used to bind the checkbox value to a boolean property. The thing is that if a checkbox is not checked, nothing is sent to the server, so ASP.NET MVC uses this hidden field to send false and bind to the corresponding boolean field. You cannot modify this behavior other than writing a custom helper.
This being said, instead of using disabled="disabled" use readonly="readonly" on the checkbox. This way you will keep the same desired behavior that the user cannot modify its value but in addition to that its value will be sent to the server when the form is submitted:
code :
@Html.CheckBoxFor(x => x.Something, new { @readonly = "readonly" })
@Html.HiddenFor(x => x.Something)
@Html.CheckBoxFor(x => x.Something, new { disabled = "disabled" })
public class MyViewModel
{
    public bool Foo { get; set; }
}
public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View(new MyViewModel { Foo = true });
    }

    [HttpPost]
    public ActionResult Index(MyViewModel model)
    {
        return Content(model.Foo.ToString());
    }
}
@model MyViewModel

@using (Html.BeginForm())
{
    @Html.HiddenFor(x => x.Foo)
    @Html.CheckBoxFor(x => x.Foo, new { disabled = "disabled" })
    <button type="submit">OK</button>
}
How do I display a count of null values for field selected in combobox?

How do I display a count of null values for field selected in combobox?


By : bb1953
Date : March 29 2020, 07:55 AM
Hope that helps I've tried using DCOUNT and SQL and nothing is working. I've pasted both queries below. When I run the SQL nothing appears in the listbox. When I run the DLOOKUP I get the error message "Run-time error '2001": You canceled the previous operation. The combobox name is ScrubbedList. Table is named Scrubbed. , Try:
code :
 intCountNull = DCount("*", "Scrubbed", "SomeField Is Null")
 intCountNull = DCount("*", "Scrubbed", strScrubbedValue & " Is Null")
Dim strSQL As String
Dim strScrubbedValue As String

strScrubbedValue = Me.ScrubbedList
strSQL = "SELECT Count(*) As CountAll " & strScrubbedValue & " FROM Scrubbed"
strSQL = strSQL & " WHERE " & strScrubbedValue & " Is Null"
Me.List265.RowSource = strSQL
    strSQL = strSQL & " WHERE " & strScrubbedValue & " & '' = ''"
Binding Dictionary<String, Int32> by keys to ListBox and selected item values to ComboBox

Binding Dictionary<String, Int32> by keys to ListBox and selected item values to ComboBox


By : Rizwan
Date : March 29 2020, 07:55 AM
around this issue I have a Dictionary which is named someDict. Keys are binding to ListBox.ItemsSource. Values of ListBox.SelectedItem must to be binding to ComboBox.ItemsSource. How to do it? , You have to make some changes to your XAML.
code :
<ListBox x:Name="listBox" Grid.Column="0" ItemsSource="{Binding Path=someDict}">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Key}" />
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>
<ComboBox x:Name="comboBox" Grid.Column="1" VerticalAlignment="Top" ItemsSource="{Binding ElementName=listBox, Path=SelectedItem.Value}"/>
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