Bind Nullable Bool To Checkbox In MVC 2
Feb 16, 2011How to bind nullable bool to checkbox in MVC 2. I try with this code in view:
<%: Html.CheckBoxFor(model => model.Communication.Before)%>
But show me compilation error.
How to bind nullable bool to checkbox in MVC 2. I try with this code in view:
<%: Html.CheckBoxFor(model => model.Communication.Before)%>
But show me compilation error.
I don't know how to bind nullable boolean field to RadioButton in ASP.net.
Following code works well for non-nullable field
<asp:RadioButton ID="rbStatus" runat="server" Text="Accepted" Checked='<%# Bind("Status") %>' />
how I can bind nullable boolean field to RadioButton?
I'm trying to bind a nullable bit column, which at the moment is mostly null, but I need to somehow convert the null to a 'false' on runtime because it doesn't bind to a checkbox if it's null. But, I am currently unable to change the default value and update all records accordingly - is there a way to do this in runtime?
View 2 RepliesHow bind the data through checkbox if checkbox checked is true
View 3 RepliesI just developing my web design skills.
I have a Datagrid with 2 textbox template columnsand two checkbox template columns. I have two other Textbox controls and two CheckBox controls. I have an Add button.
I want to be able to use the add button to update Datagrid Record inserting the Textbox control texts and the Checkbox Control status.
I've written the following Extension Method
<Extension()>
Public Function ToUtcIso8601(ByVal dt As Date) As String
Return String.Format("{0:s}Z", dt)
End Function
But I also need a Nullable version of the same method... how exactly do I do this?
This is what I was thinking, but I'm not sure if this is the right way
[code]....
i create a sproc for validation username and email address lilke below:now i use this sproc like below:
[Code]....
Error 6 The best overloaded method match for MisaghDataContext.usp_ValidUserNameEmail(string, string, ref bool?)' has some invalid arguments
I have a checkbox list , a textbox and a search button.
When I click search the data should populate into the checkbox list by using the textbox data as the parameter and I am using a BLL for it.
I have 6 states in my checkbox list and it may have 2 or 3 checked values.
If
dt4.Rows.Count > 0 Then
CheckBoxList1.DataSource = dt4
CheckBoxList1.DataTextField = "MI,IL,IA,WI,IN,OH" 'CheckBoxList1.Items(4).Selected = True
CheckBoxList1.DataBind()
I am trying here to find a simple solution to bind an array of elements to a model using the MVC model binder. If I use the @Html.Checkbox helper now, it will generate me something like this :
[Code]....
I should be ok as it manage the checked in state and not checked in. The problem here is when I try to bind it back to the model (something really simple)
[Code]....
In the controller I try to bind it with the UpdateModel()
[Code]....
When I debug, the chk variable in the model is still null. I tried with IList<string>, bool[], IList<bool> nothing seems to make it. Is there any other way to deal with this else than form.GetValues("chk")[0].Contains("true") ?
i am getting error in Mvc Checkboxlist from sql server
View 1 RepliesI am looking here to find a quick and easy way to bind a list of checkbox list items when the postback occurs in the model. Apparently the common way to do it now seems to do it like this form.GetValues("checkboxList")[0].Contains("true"); It seems painfull and not exactly safe. Is there a way to bind a list of checkbox (that are created with or without an helper in the view) or even an array of data for that matters during the UpdateModel(myViewModel, form.ToValueProvider()); phase which would populate an IList<string> or string[] inside of the model ?
View 4 Repliesi need to develop new program need to bind checkbox in datalist, also use checkbox to do the delete, insert and update function.
when i uncheck the checkbox, and click on save button, it means the data had delete
when i check the checkbox, and click on save button, it means the data had insert
how to do it?
I have an asp.net 3.5 application where i am using listview the structure of listview is like this
[Code]....
The Code behind is
[Code]....
Now the problems are :
1. I have to bind the checkbox value with the the value that is coming from the database something like this value='<%# Eval("ID") %>'
2. Whenever the user clicks on the text of the label the corresponding check box should be selected.
how to set checkbox status Checked in gridview when in detabase column "type = Y" and when "type =N" that time checked is uncheked on rowdata bount of gridview
View 1 RepliesI am trying to pull data from database and populate a gridview. I did it like this:
<asp:CheckBox ID="chkItem" runat="server" Enabled="false" Checked='<%# (DataBinder.Eval(Container.DataItem,"Em").ToString()=="True"?true:false) %>' TabIndex="1" />
I need to have an update on the gridview, so instead if using Eval, I need to use Bind. translate the line above to a bind function?
I have the following query in which I have to convert the 'bool' valu into 'string' value as "Y" or "N". I have a class defined called ChartDosCodeInfoStruct which definesQAIndicator as String. The value I am feteching from DB is a bool value. I need to take this bool value and accordingly assignQAIndicator= "Y" or "N".
UserManager userManager = (UserManager)BaseEntityManager<DataAccessLayer.User>.GetSingleInstance();
List<User> user = userManager.GetCodersForChart(_currentChart.ChartId);
UIConfigurationObject.CoderForChart.value = user.First().FullName.ToString();
[code]...
Why can't I do this?
if ((bool)Request["genericError"] != true)
{
return;
}
Compiler gives me:
Cannot convert type 'string' to 'bool'
Request["genericError"] should be an object, so why does the compiler think its a string?
I'm looking for the reason for this, not how to sidestep it (using Convert)
I am using ASP.NET and VB to display a message(label) while the datalist is empty like this
<asp:Label ID="lblEmpty" Text="No Data To Display" runat="server" Visible='<%#bool.Parse((dlErgebnis.Items.Count==0).ToString()) %>'></asp:Label>
I am getting a error "the name bool is not declared".
What is causing this error?
cannot convert string to bool error in LINQthis is my code:
[Code]....
I have a DataTable, one of the column data type is of type Bool or sql(Bit).
now i want to assign this value to a Bool variable/object or lets say i want to assign this to a checkbox, How do i do that
eg. not correct though
DataTable dt= new DataTable();
Bool a= dt.Rows[0]["IsApproved"];
cb.Checked=dt.Rows[0]["IsApproved"];
protected void Button1_Click(object sender, EventArgs e)
View 2 RepliesI have a situation where I want to show the selected records out of total records for a product of an employee
1) There is a checkbox list bind to <List> of objects from object datasource (For total items in list)
2) Now I want to check the selected items for a particular record in this list
3) For this purpose I have another list of <List> selected items returned by data access layer (For selected items for that employee )
4) How do I bind the selected objects with the total items list ?
5) In spaghetti coding model it was all too easy just by binding the checkbox list with a sql data source and running a for each on form load
i m unable to bind data inside checkbox list. this is my code
protected void dlBreeds_ItemDataBound(object sender, DataListItemEventArgs e)
{
try
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
CheckBoxList cbl = e.Item.FindControl("cblAnimaltype") as CheckBoxList;
if (cbl != null)
{
cbl.DataTextField = DataBinder.Eval(e.Item.DataItem, "BGName").ToString();
cbl.DataValueField = DataBinder.Eval(e.Item.DataItem, "ID").ToString();
}
}
}
catch (Exception ex)
{
pnlStatus.Visible = true;
lblMessage.Text = ex.Message.ToString();
}
}
protected void BindAnimals()
{
//*********************************************************************************
// Purpose : To bind breeds in listbox
// Inputs : Nothing
// Returns : Nothing
//*********************************************************************************
DataSet ds = new DataSet();
try
{
ds = InvertebrateProviders.GetBreedsName_Invertebrate(1);
if (ds.IsInitialized)
{
DataView dv = ds.Tables[0].DefaultView;
dv.RowFilter = "ID<>0";
dlBreeds.DataSource = dv;
dlBreeds.DataBind();
}
}
catch(Exception ex)
{
pnlStatus.Visible = true;
lblMessage.Text = ex.Message.ToString();
}
}
<asp:DataList id="dlBreeds" runat="server" DataKeyField="BGName" OnItemDataBound="dlBreeds_ItemDataBound" RepeatDirection="Vertical">
<ItemTemplate>
<asp:Panel ID="pnbBreed" BorderColor="#7f9db9" Height="129px" Width="220px" ScrollBars="Vertical" BorderWidth="1px"
BorderStyle="solid" runat="server" Visible="true">
<asp:CheckBoxList ID="cblAnimaltype" DataTextField='<%#Eval("BGName") %>' DataValueField='<%#Eval("ID") %>' AutoPostBack="True" runat="server" Height="129px" CellPadding="0" CellSpacing="0"
OnSelectedIndexChanged="cblAnimaltype_SelectedIndexChanged" Width="200px" >
</asp:CheckBoxList></asp:Panel>
<asp:CheckBoxList ID="cblBreeds" Height="90px" Width="200px" runat="server" ></asp:CheckBoxList>
</ItemTemplate>
</asp:DataList>
I need to create a public bool that checks a string for items in an arraylist.
Here is a vague sample of what I'm talking about..
[Code]....
I'm not experienced enough with the foreach statement to quite figure out what I'm doing wrong here.
I am a super newbies in ASP.net. Can I know what is the explanation for this coding? it is in Login page ;private bool IsAdmin(string id)
View 3 Replies