I have a method that lists all Properties from an expression.
It goes like this:
[Code]....
After that, I would put it to string (i.e. "Property1.Property2.Property3"). What I want to do is if a Call expression type comes up - only for indexed properties - , it should have some way of adding it so when I put it to string it would output "Property1.Property2[0].Property3".
The CollapsiblePanelExtender looks like this:
<cc1:CollapsiblePanelExtender
ID="CPExtender1"
...
CollapsedImage=" [path to image] "
...
/>
I do not know how to do it this way:
<cc1:CollapsiblePanelExtender
ID="CPExtender1"
...
CollapsedImage=" [method call] "
...
/>
I have tried this:
CollapsedImage="<%# Eval( Namespace.Class.GetHelpImage() ) %>"
That DataBinding does not return the path to the image using a method call so I test the GetHelpImage() method call and learn it does not return the path as text.
I know the path to the image is correct because I can paste the text into the CollapsiblePanelExtender CollapsedImage property and the control will find and display the collapsed image.
// this method call does not return the text for a path
// so I am not even doing this correctly either.
public static string GetHelpImage()
{
return "[known path to image]";
}
// Image to test getting text from GetHelpImage() method call
<asp:Label ID="TestGetImagePathLabel" runat="server"
Text="<%# Eval( GetHelpImage() ) %>"/>
I'm doing this all wrong. Where's a blogged example of how to populate the control using an expression?
I was trying to write a method to be called from a CustomValidator to determine whether a string property was unique or not. I was trying to make it generic so that I can reuse the code for many different string properties. I'm using reflection. Does this seem like a way too complicated way of doing this? Does there happen to be a better way of doing this but still making it generic?
public virtual bool IsPropertyUnique(T entity, string newValue, string propertyName)
{
var values =
Context.GetTable<T>.Where(e => string.Equals(e.GetType().GetProperty(propertyName).GetValue(e, null), newValue)).ToList();
return values.Count == 0;
}
I am stuck with the database row level security model that my predecessor has implemented on this project. I am trying to make an extension method for my linq to sql classes to make it easier to filter rows of data in my linq queries. The problem I am facing is that I need to somehow tell it how to access the primary key value of the object in the where clause. I get errors about DynamicInvoke(object[]) cant be converted to SQL. Here is a sample of what I am working with:
[Code]....
How do I do this?
I Have 2 Questions
1) What Is The Meaning of dr.GetOrdianal In ASP.NET Class File? What Is The Purpose Of The Same? Is It Compulsory To Write dr.GetOrdinal While Fetching Any Value From Database?
And
2) What Is The Purpose of Properties (Get & Set ) In Class File? Will It Saves Our Time Of Compilation?
I am using an ObjectDataSource control to call a MapInfo object. This object has two properties:
public IList Visits
public int TotalAvailable
The select method returns an IList but the TotalAvailable property is also populated. I have set the TypeName in the ObjectDataSource to the MapInfo object but because the Select method only returns the IList I don't have access to the TotalAvailable.
[code]....
Is there any way to access this value. I know it is being populated in the MapInfo object but all that gets returned from the Select method is the IList
I have a regular method I want to call. I need to use properties of the GridViewRowEventArgs Class within this method.
i.e.
[Code]....
Of course the above code is not valid because I don't think you can put GridViewRowEventArgs within the method like that. I don't want to put it within a event handler because that even handler is doing other things. I want to be able to call this seperatley.
I write inline expression and binding expression in the server head section:
[Code]....
[Code]....
But both kinds of expression aren't parsed or executed except the ResovleUrl menthod. The html renders like this:
<head><link rel="stylesheet" type="text/css" href="<%= Request.ApplicationPath %>themes/style1.css" /><link rel="stylesheet" type="text/css" href="<%# Request.ApplicationPath %>themes/style2.css" />
<link rel="stylesheet" type="text/css" href="/themes/style3.css" />
<script type="text/javascript" src="/js/jwork.js"></script>
</head>
As I know, the inline expression in the attributes of server control can't be parsed but the binding expression should if we invoke the DataBind method. But the above case breaks the rule.
I'm trying to use the validator to work on a email form to ensure that they enter a valid from email address. That part works. I also want to add to the expression the text that I pre-populate in the txtbox ("Enter your email address") so on postback, after sending the message, I can clear the fields and repopulate that box.
How do I add that wording to the current expression: w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*
I am using Regular Expression validator for a text box. The below is working fine.It is not performing validation when I enter values like 0000..001.How can I modify validation expression? But it would allow values like 100,...5000 i.e zeros after a number.
<asp:RegularExpressionValidator ID="reg2" runat="server" ControlToValidate="rng2"
ValidationExpression="^[0-9]+" ErrorMessage="*Please Enter a Valid Number for Second Range."
ForeColor="Red" Font-Bold="True"></asp:RegularExpressionValidator>
I have a new VS2010 .NET 4.0 Web project and the Properties Folder has gone wierd on me. It has lost teh "Open" under the right click. There is no way to get a Settings file created now.
I am unable to get to the Settings grid and no Settings file is created. I tried the help and it has the normal trip of select Properties, Open (right click), Settings Tab, etc. etc.
I need some help in regular expression.I am validating the textbox text when updating the records.When i click the update button,the first 5 letters should be equal to CM000 or cm000.How to validate this using regular expression in asp.net. does anyone know validationexpression for this.
View 1 RepliesI am relatively new to ASP.NET. I am just wondering if there is way to read values from properties file (similar to rading a properties file from JSP or java).
For example if a property file has something similar to this:
[Code]....
I would like to read all the values for username_list (comma seperated) and also the value of is_valid.
i have to check if an input string is valid based on the given regular expression.. this is the regular expression.
(a(bb+aaa+((ab)*bb+(aba)*aa)(a+b)*) + (b(aa+bbb+((ba)*aa+(bab)*bb)(a+b)*)
+ is an OR
* is a LOOP, it is optional, it may be done as many as a user wants.
i've tried many ways to solve the problem that my professor gave me but my knowledge isn't that enough to solve this problem..
I am creating an Asp.net web site which will support dynamic data. When I am creating a dynamic web site from Scratch (from template in VS) all is working fine. But when I am trying to add dynamic entity (.edmx) file and running the application I am getting following error
"The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'. "
I have tried everything for weeks with this now but can't get it to work. What I'm trying to do is to store an array in a session and add numbers when a user guesses. I also have to know how to loop through the array.
Please help
[Code]....
I have an self-referencing entity which maintains a list of like entities that are it's children. What I need to do is build a dropdown that lists all possible parents so when I add or edit a new entity of that type, I can select it's parent (or no parent). The problem lies in the sql. I simply don't know how to word it.
IList<ParentForumModel> parentForums = new List<ParentForumsModel>();
foreach (Forum forum in forumRepository.GetAll())
{
// not sure how to handle this here because it isn't in the correct order. I need them to be grouped by parent and sorted by the sequence field. It also needs to be a flat dataset, not something uses IGroupedQueryable or some such.
}
ForumAddModel model = new ForumAddModel
{
ParentForums = parentForums,
// other properties
}
public IQueryable<Forum> GetAll()
{
return context.Forums.??? // what Linq do I need here?
}
If this simply isn't possible with Linq2Sql, then is there a system where it is possible? Please don't say hnibernate.
I'm sort of new to ASP.NET. What i've done here is create a list of Newsletters seperated by University newsletters, and Alpha Newsletters. What I have now been asked to do is make these 2 lists into 1 list. I can't figure a Way to do it without designing the database? Does anyone have any ideas? Take these 2 lists and make 1? Using odsNewsletterAlpha and odsNewsletterUni to create 1 list?
<h2>University Newsletters</h2>
<asp:ListView class="lvUniversity" EnableViewState="true" ItemPlaceholderID="plcItem" DataSourceID="odsNewsletterUni"[code]...
I'm not sure on the best way to go about this one. Simply LINQ queries are easy enough for me, but I am looking for the most efficient way here.
I have 2 tables, Sliders and SliderItems. SliderItems have a FK that points to the Sliders Id.
I have been getting information on a particular slider like this:
public static List<Slider> GetSlider(Slider sItem)
{
DBContext db = new DBContext();
if (sItem.Id != Guid.Empty)
{
var list = from tbl in db.Sliders
where tbl.Id == sItem.Id
orderby tbl.Id
select tbl;
return list.ToList();
}
}
So what I need to do for my home page is pull back a set of data that I want to stuff into a data list. Thereby combining the Slider + SliderItems that go along with it.
Do I just do a normal LINQ query with a JOIN statement and toss them into a generic list that goes back to my DataList?
I have to put data into a dictinary, thus formed: Dictionary (Of Integer, List (Of RicercaNews))
but when I go to put the list in the dictionary, I always return the same record, as if it does not increase the index of the list.
This is the code:
ResultTable Dim As New DataTable ()
Dictgestionalews Dim As New Dictionary (Of Integer, List (Of RicercaNews))
Listacat Dim As New Dictionary (Of Integer, String)
Dim listaricerca As List (Of RicercaNews)
[Code]....
i have two dropdown lists and i would like if i select lets say "1" the second list returns "A""B" but instead it returns "A" how to make the second list display A"B when i select "1" from the first list.
View 12 RepliesI've been trying to get this to work for weeks. I am trying to use a cascading drop down to populate drop down lists. The service method is working as i'm able to view the data in the browser but when i run the application the drop down list is empty. see below for the service method.
[Code]....
The code for the drop down list:
Location Name:<asp:DropDownList ID="DropDownList3" runat="server">
</asp:DropDownList>
<asp:CascadingDropDown ID="CascadingDropDown1" runat="server"
Category="Locations"
TargetControlID="Dropdownlist3"
PromptText="[Select Location]"
ServicePath="~/LocationWebService.asmx"
ServiceMethod="GetLocation"
EmptyText="Nothing">
</asp:CascadingDropDown>
I am populating 4 drop down lists. The dropdownlists within the For loop work fine and I will ignore these for the rest of this post. Reading the code below should add 2 values to the dropdownlist ddlPost and should add 2 values to the dropdownlist ddlTailLength. Both values should be A and B. Both of these drop lists should show 2 values (A and B), but are showing 4 values each (A, B, A, B). The only loop on these pages is the one displayed below.
c#:
[Code]....
HTML:
[Code]....
I have a dropdownlist and a gridview with a drop down list in every row. I have removed other cols in Grid for simplicity.
Whenever a new value in the dropdownlist is selected I would like to set all of the dropdownlists in the gridview to that same value via javascript. (Yea both the dropdownlist outside the gird and the ones inside the grid are populated by the same data source)
The dropdownlist:
<asp:DropDownList onchange="javascript:onJDSelection();" ID="DropDownList3" runat="server"
DataSourceID="SqlDataSource4" DataTextField="circt_cstdn_nm"
DataValueField="circt_cstdn_user_id">
</asp:DropDownList>
The GridView:
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" onrowdatabound="GridView2_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Change to Job Designer" SortExpression="circt_Cstdn_nm">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("circt_Cstdn_nm") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:DropDownList ID="ddl_jd" runat="server" DataSourceID="SqlDataSource4" DataTextField="CIRCT_CSTDN_NM"
DataValueField="CIRCT_CSTDN_user_id"></asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
My current attempt:
function onJDSelection() {
var jd = document.getElementById('ctl00_MAIN_DropDownList3').Text;
var grid = document.getElementById('ctl00_MAIN_GridView2');
for (var i = 1; i < grid.rows.length; i++) {
grid.rows[i].cells[0].getElementsByTagName("*")[1].selectedText = jd;
}
}
[Code]...
When clicking on the dropdown I get an alert that says "test" and an alert that says "[Object object]" However nothing happens with the dropdowns in the grid and the alert(i) never fires.
I have the following array list:
1. AlbumName
2. AlbumName
3. AlbumName
4. AlbumName
5. AlbumName
I would like this sort as follows(Csharp.net):
5. AlbumName
4. AlbumName
3. AlbumName
2. AlbumName
1. AlbumName