MVC2 : Modifying Master Css Property Depending On Query String Parameter
Sep 17, 2010
In the original site, master page has code-behind to check a query string parameter value. Depending on this value, code-behind dynamically modify some CSS property to hide / display master page elements.
As MVC2 has no code-behind because we are supposed to perform everything in the controllers, how should I proceed in this case ?
I see this : [URL]
It partially answers my needs but the query string processing is common to all pages. How can I move this processing in a common code section ?
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Mar 1, 2011
I have a drop down box that is in the edit template of a formview. I want to be able to add a parrameter to the querystring when the drop down selected index is changed.
I tried
Request.QueryString.Add("tabindex", (sender as WebControl).TabIndex.ToString());
But I got an exception saying the collection is readonly.
Here is my markup
<icms_ref:ReferenceDropDownList ReferenceDataManagerProviderName="ROCSQLReferenceDataProvider"
ID="ddlEnquirerHearType" TabIndex="2" runat="server" ReferenceSetName="EnquiryHearType"
AutoPostBack="true" OnSelectedIndexChanged="EnquirerHearType_SelectedIndexChanged"
DataTextField="ShortName" DataValueField="ReferenceId" />
and here is my code behind.
protected void EnquirerHearType_SelectedIndexChanged(object sender, EventArgs e)
{
var pnlEnquiryHearTypeOther = fvEnquiryInformation.FindControl("pnlEnquiryHearTypeOther") as Panel;
pnlEnquiryHearTypeOther.Visible = DdlEnquirerHearType.SelectedValue == ((int)EnquiryHearType.Other).ToString();
ResetTextBox("txtEnquiryHearTypeOther", fvEnquiryInformation);
Request.QueryString.Add("tabindex", (sender as WebControl).TabIndex.ToString());
}
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Jul 26, 2010
I have page A, B and C. In the page load of C, i have used a query string parameter to display some tables depending on where it came from, either A or B. Page C has Cancel button. When a user clicks Cancel, it has to check where it came from and should redirect to same page, i mean either A or B. I am not at all sure how to use query string for redirecting.
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Jan 20, 2010
how to pass through a query string parameter of an assignment id and then checking and validating this as a number and displaying the information returned on screen. At present I have code which displays the information on screen but this is by entering in the assignment id and by triggering the button click event, I've shown the code for this below:
.aspx
<div>
<b>Current Assignment</b>
<br />
<asp:TextBox runat="server" ID="txtAssignmentID"></asp:TextBox>
<asp:Button runat="server" Text="Get Assignment" />
<br />
<b>Date Started:</b> <asp:Label runat="server" ID="lblAssignmentStart"></asp:Label>
<br />
<b>Status:</b> <asp:Label runat="server"></asp:Label>
<br />
<b>Current Achievement Level:</b> <asp:Label runat="server" ID="lblAssignmentLevel"></asp:Label>
<br />
<b>Date Last Calculated:</b> <asp:Label runat="server" ID="lblAssignmentCalcDate"></asp:Label>
<br />
</div>
.cs
protected void cmdGetAssignment_Click(object sender, EventArgs e)
{
//Check the assignmentID is an integer
int AssignmentID = 0;
try
{
AssignmentID = TypeConv.CInt(txtAssignmentID.Text);
}
catch
{
}
if (AssignmenttID > 0)
{
//Create new TCAAssignment object by passing the ID
TCA Assignment Current Assignment = abc.TCA Assignment (AssignmentID);
lblAssignmentStart.Text = Current Assignment.dDateCreated.ToString();
lblAssignmentStatus.Text = CurrentAssignment.rTCAAssignmentStatus.dDescription;
if (!CurrentAssignment.dTCAAchievementLevel.IsNull)
{
lblAssignmentLevel.Text = CurrentAssignment.rTCAAchievementLevel.dDescription;
}
lblAssignmentCalcDate.Text = CurrentAssignment.dAchievementDate.ToString();
}
}
Code example passing through a query string parameter of an assignment id would be great.
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Oct 5, 2010
I have a dropdown list that won't populate data values from database using sql datasource. When i use the code behind, i was able to populate the data to the dropdown list. I dont know how to pass the Query String Parameter using code behind since i am new in asp.net. This is the code behind:
Imports System.Data.SqlClient
Partial Class PhotoAlbum
Inherits System.Web.UI.Page
Dim oConn As New SqlConnection("Data Source=.SQLEXPRESS;" & _
"AttachDbFilename=|DataDirectory|ASPNETDB.MDF;" & _
"Integrated Security=True;User Instance=True")
Dim oCmd As New SqlCommand()
Dim oDR As SqlDataReader
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
oConn.Open()
oCmd.CommandText = "SELECT [CategoryID], [Name] FROM Categories ORDER BY [Name]"
oCmd.Connection = oConn
oDR = oCmd.ExecuteReader()
Me.categories.DataSource = oDR
Me.categories.DataTextField = "Name"
Me.categories.DataValueField = "CategoryID"
Me.categories.DataBind()
oDR.Close()
oConn.Close()
End Sub
End Class
I will like to include the following information from sqlDatasource to the codebehind:
SelectCommand="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId) ORDER BY [Name]">
<SelectParameters>
<asp:QueryStringParameter Name="UserId" QueryStringField="ID"/>
As you can see from the code behind, i was able to add :
"SELECT [CategoryID], [Name] FROM Categories ORDER BY [Name]".
But i will like to add all of this:
SelectCommand="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId) ORDER BY [Name]">
<SelectParameters>
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Oct 28, 2010
how can we hide the query string parameters in the URL in asp.net . but i am not interested to use url rewriting.
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Nov 21, 2010
I have a stored procedure that is close to working. It takes the values of a details view puts them into the respective table 'entity' then should also put the @@identity into 'entloan' and should put the LoanID which is in the query string of the page the detials view is loaded on, into the LoanID field of entLoan as well. Everything works except for getting the querystring value to pass to a insert variable on my stored procedure.
Stored Procedure
[Code]....
I do not have a LoanID Insert parameter set as it is not in entity table:
[Code]....
I have been playing around with different code in the backend but always get errors:
[Code]....
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Mar 18, 2010
i have a function which returns a value from a query string parameter, i use it in more than 10 places in the webapp thus i have to rewrite the code every time, again and again.so to make it short, is there any way i can embed the code somewhere and keep referring to it through out my app?
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Aug 24, 2010
how do i add a new parameter to an existing query string?
[URL]
now i need to add a new parameter say, showsearch.
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Oct 8, 2010
I want to send selected page value on querystring while navigating through paging. URL that is generating on paging are like this
[Code]....
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Aug 7, 2013
Need to hide query string values from web URL, So that no one should be able to recognize what values are passing from one page to another.
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Apr 14, 2010
We are using a asp.net page to submit data to server. what we do is we will pass as parameter in url Query string) and in page load we take that values and submitting to database I have these following doubt
1, What is the default event happening while we call a ASP.NET page is it a POST or GET? We tried to call this url from a mobile application, it is not happening , we are not getting any error also in the mobile application.
2, IF we are calling the url to submit data from mobile applications which one we have to use (GET or POST)
3, IF we are calling this url from an application running in PC to submit which one we have to use ?
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Jul 13, 2010
I have a standard Login form
<asp:Login ID="lgnExcel" DestinationPageUrl="login/data.aspx" OnAuthenticate="Login1_Authenticate" runat="server">
Is it possible to attach the Username as a query string with the DestinationPageUrl or reference the value in the code behind. I've tried lgnExcel.UserName.ToString()
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May 7, 2015
Append Query String Parameter Values in Current URL.
I have added Hyperlink in data list.which is Bind with their Respective data.When I Click that Hyperlink it Will Pass Url like this.
Area_id,Cuisine_Id and Veg_Id Bind in Datalist
[URL]
I want to Built a Filter Page Which Includes Area_id, Cuisine_Id and Veg_Idso when i Click to Hyperlink of Area then url like this. [URL] And then After i click to hyperlink of Cuisine then URL Like this.
[URL]
Similar Way
[URL]
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Problem : How can i Make Url Like this and it is Dynamic
[URL]
I want to Do Something like this SitePage Filter
[URL]
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Mar 22, 2010
I'm having troubles passing a parameter to a handler in it's query string. I have a gridview with an image column, this column is defined as a TemplateField, as:
<asp:TemplateField
HeaderText="Image">
<ItemTemplate>
<asp:Image
ID="Image1"
runat="server" ImageUrl='~/ImageHandler.ashx?ID=<%# Eval("EmployeeID")%>'
/>
</ItemTemplate>
</asp:TemplateField>
As you can see, the ImageUrl is a call to a handler that receives the EmployeeID in the QueryString, under the name ID. When I run it, the ImageHandler method receives the following query string "ID=<%" instead of "ID=<the result of Eval("EmployeeID")>", and of course, it throws a FormatException when using it as an int to get the EmployeeID. (If I type ImageUrl="~/ImageHandler.ashx?ID=<%# Eval("EmployeeID")%>" (using " instead of ') the compiler returns the error incorrect server tag) The complete markup is:
<asp:SqlDataSource
ID="SqlDataSource1"
runat="server"
ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
SelectCommand="SELECT [EmployeeID], [LastName], [FirstName], [Photo] FROM [Employees]">
</asp:SqlDataSource>
<asp:GridView
ID="GridView1"
runat="server" DataSourceID="SqlDataSource1"
AutoGenerateColumns="False">
<Columns>
<asp:BoundField
DataField="EmployeeID"
HeaderText="ID" SortExpression="EmployeeID"
/>
<asp:BoundField
DataField="FirstName"
HeaderText="FirstName"
SortExpression="FirstName"
/>
<asp:BoundField
DataField="LastName"
HeaderText="LastName" SortExpression="LastName"
/>
<asp:TemplateField
HeaderText="Image">
<ItemTemplate>
<asp:Image
ID="Image1"
runat="server" ImageUrl='~/ImageHandler.ashx?ID=<%# Eval("EmployeeID")%>'
/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Could anybody tell me what am I missing here?
Rafael
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Mar 9, 2011
I've a page in ASP.NET, whose appearance can change based upon a given parameter(say query string),
How can I achieve this in ASP.NET, Master pages concept won't work here, as even the contents of the page and positioning of the controls on the page can change based upon the parameter.
One solution I can think of is using XSLT, but is there any other solution I can use to solve this problem? Is there any concept of templates I can use here?
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Sep 19, 2010
I'm tyring to write a simple DetailsView only used for inserting new records that will pre-fill a textbox with a query string value. Here's the DetailsView:
[code]....
All I want to do is set VenueID_FK.Text to = the "VenueID" querry string. I also want the user to be able to see the VenueID number as they are filling out GridView1.
I know this is probably a simple thing, but I am very new to asp.net. I thought I could handle this in the page load event, but when I try something like this
TextBox VenueID_FK = (TextBox)DetailsView1.FindControl("VenueID_FK");
And then follow by setting the Text property programitically. I've accomplished something similar to this on a different page using a FormView, but only for ReadOnly mode and it was handled in the databound event on that page.
I get the error "The name 'DetailsView1' doesn't exist in the current context." when trying to do the above mentioned. When trying the same line in the databound event here, I get the same error.
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Jul 23, 2010
i dont know at what instance of program i have to do this while adding the history point or in the navigate event of script manager(i mean calling javascript function from code behind)
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Aug 9, 2010
In my Application_BeginRequest I have code that gets query string value ?c=FR or ?c=US and store it in cookies.Based on query string value I have either US or FR,locale is selected from locale table.If ?c=FR then locale will be fr-FR and if it is US then locale will be en-US.My code is below.
void Application_BeginRequest(object sender, EventArgs e)
{
LocalizationInfo loc = GetLocalizationInfo();
if (Request.Cookies["Localization"] == null)
Response.Cookies.Add(new HttpCookie("Localization"));
Response.Cookies["Localization"]["Country"] = loc.Country;
CultureInfo objCI = new CultureInfo(loc.Locale);
Thread.CurrentThread.CurrentCulture = objCI;
Thread.CurrentThread.CurrentUICulture = objCI;
}
public static LocalizationInfo GetLocalizationInfo()
{
string countryCode = "";
string sLocale = "";
if (HttpContext.Current.Response.Cookies["Localization"]["Country"] != null)
countryCode = HttpContext.Current.Response.Cookies["Localization"]["Country"];
if (!string.IsNullOrEmpty(HttpContext.Current.Request.QueryString["c"]))
countryCode = HttpContext.Current.Request.QueryString["c"];
if (countryCode == "")
countryCode = "US";
sLocale = HertzRent2Buy.DataProvider.ListData.GetLocale(countryCode);
LocalizationInfo ret = new LocalizationInfo();
ret.Country = countryCode;
ret.Locale = sLocale;
return ret;
}
public struct LocalizationInfo
{
public string Country;
public string Locale;
}
Now when I run the project and in query string I set [URL] then for the very first page(home page itself) it shows me French translation,but on subsequent page,that query string parameter ?c=FR is lost and hence it shows be English translation not French translation since it does not pickup French resx file.If I manually append ?c=FR in subsequent page then it shows the French translation.Is there is way how I can make that query stringparameter available in all pages.Structure is there to hold Country and locale variables. In all pages I am calling GetLocalizationInfo() method as follow
LocalizationInfo info = some.DataProvider.Globalization.GetLocalizationInfo();
And I create instance info to pass locale and country as parameter. GetProductDetails(id,info.Country,info.locale). why my query string parameters get lost on subsequent pages.
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Oct 8, 2010
I have only just started to use Reporting Servcies and would like to know is there any way of putting IF statments into the SQL statment depending on the value of a selected parameter.
[Code]....
What I would like to do is when "Parameter!RP_Area.value" = 99 then miss that part of the sql statment out, something like this.
[Code]....
if this is possible and if it is how would I go about doing it?
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Jan 20, 2010
I'm currently using a GridView and I want to set the CssClass for the Row depending on a property of the object that the row is being bound to.
I tried the following but it does not work (see comments):
[code]...
Now I could simply handle the GridView's RowDataBound event and change the css class of the row there...but I'm trying to keep a clear separation between the UI and the page/business logic layers.
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Oct 19, 2010
Is it possible to change a parameter's property after the uer has made a selection or filled in another parameter field? I'm using VS2005
Case:
- 3 parameter fields; Country,Station,Carrier all three are textfields and are allowed to stay 'blank'.
- When the user enters a Country-code in the 'Country' parameter field, the 'Carrier' parameter should become a required field.
I did some searching on the net, but haven't found the solution. I started to wonder if it's actually possible?
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Nov 23, 2010
I've to fix an old ASP.NET application's appearance so that it can conform to the new web visual identity of my organization. The old application does not have any master page and uses a very basic .include file. Modifying the .include header does not change the overall look of the app's pages much, and I still have to manually import new css definitions, replace the table tags with divs on the 60 odd .aspx pages.How should I proceed? I have long term maintainability in mind, so a master page is the obvious solution.
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May 13, 2010
I have a page create-quote.aspx. I want to open this page in different modes, depending on whether a querystring parameter is present or not.My question is at which event should I check, If I have a querystring parameter or not.I think, it should be preinit, what do you say.
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Dec 28, 2010
So, I've got an contact form in my MVC 2 application.
I'd like to programatically email all properties of my "ContactModel".
Here is what I'd like to do in psuedo-ish code:
[Code]....
In case it matters...ContactModel sets up the DisplayName attributes like this:
[DisplayName("First Name")]
public string FirstName {get; set ;}
I'd like to keep this nice and DRY by not repeating the DisplayName names.
Specifically, I'd like to enumerate over each property in my ContactModel, get its DisplayName, and get its submitted value.
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