Web Forms :: Applying Logic To Validator Controls?
Sep 8, 2010
I have a RadioButtonList control, containing two ListItems. These two Radio Buttons toggle each other, so that only one is selected at a time. When the second is selected, it affects whether a Textbox is enabled or not, and also erases the text in the Textbox when selected. Lastly, a Button is present to execute the selections made.
I have a RequiredFieldValidator and a RegularExpressionValidator on the Textbox, since when the first Radio Button is selected, I need to validate the entry. However, I need to turn off the functionality of the Validator controls when the second Radio Button is selected.
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Dec 13, 2010
I have a validator on a textbox that validates against a list to ensure that the user doesn't input the same name. When testing it, if I type in the same name including the same case structure, it returns an error. If I change one letter to a different case, it doesn't return an error but rather my SQL server returns a duplicate error. How do I change the server-side validator so that it picks up duplicate names regardless of case?
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Jun 18, 2010
I was wondering if setting a default value for a SelectList is considered to be presentation logic or business logic? For example, if a requirement is that an Employee cannot be saved without a Location, but 99% of the time the location that would be selected is a particular item -- say Atlanta. Because of this, the location SelectList should be defaulted to Atlanta when ever a entry screen for a new employee is displayed. Should I be defaulting the location in the model or in the view-model? One thing I realized is that the unit tests become awkward because in both cases, I'd be forced to test against a location that will always be present in production but I cannot create a unit test with my own test dataunless "Atlanta" was in the set of locations being used in the test.
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Jul 22, 2010
I need to apply a function, called get_local_name() to translate, in the language chosen by the user, the headers of a table in Listview. The function searches a table with all the translations and gets the one corresponding to the original name of the header. I had no problems with other buttons or labels. There I have a label, a property Text, so it's easy, for me, remember I'm a total noob, to recall the element I want to translate in Vb. For instance:
Protected Sub select_local()
L_admin.Text = get_local_name("Admins", lng)
End Sub
Private Sub GV_customers_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GV_customers.RowDataBound
If e.Row.RowType = DataControlRowType.Header Then.....
and now I have to do the same for the headers in Listview, but I really can't understand how I could apply get_local_name to the Text of the headers.
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Jul 30, 2010
I have successfully loaded fonts that are installed in my system. But now i want that on click on NEXT Button, Label Control's font should change to installed font.
Here's the code to load font:
Dim allFonts As
New InstalledFontCollection
Dim fontFamilies()
As FontFamily = allFonts.Families()
For Each myfont
As FontFamily
In fontFamilies
ListBox1.Items.Add(myfont.Name)
Next
Here's the code for applying font to Label control
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim allFonts As New InstalledFontCollection
Dim fontFamilies() As FontFamily = allFonts.Families()
Dim j As Integer
For j = 0 To allFonts.Families.Length - 1
Label1.Font.Name = allFonts.Families(j).Name
Next
End Sub
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Sep 28, 2010
I'm using the free text editor [URL] and set a property (DesignModeCSS) to the text box based on the theme being used at the time. The following code works just fine:
TextBox_Home.DesignModeCss = "App_Themes/" + GetCurrentTheme() + "/BackOfficeTextStyles.css";
What I've since done is to add the text box control into a FormView (edit mode), and I'm now not sure how to access the text control to apply the code above.
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Dec 31, 2010
I using RangeValidator (0-10)gularExpressionValidator for text box ,Iam using regx for validate numeric characters
But if i enter charcters it will fire both RangeValidator and regx validator eventhoug i am enterd character,
i want to fire both validators seperatly
Here is my code
[code]...
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Oct 27, 2010
I have a requirement of converting existing english form to multi lingual form.I am currently converting english form to spanish form.
Everything works except the date formats.
The range validator is not working in a spanish form but works in a english form.
I have set the maximum and minimum value in page load as below in the english form
Heres how i have set the values
[code]...
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May 24, 2010
I have a very simple datalist setup to a SQLDatasource. Displaying the data works great. But I want to replace the plain databinder container with a hyperlink instead and have that link setup to point to a detail page with a parameter. Here is my datalist setup:
[Code]....
On another page im using gridviews adn able to do what i need by using the RowDataBound of the gridview like so, how can I accomplish the same thing with a datalist?
[Code]....
I tried using the ItemDataBound and trying to modify the logic above to fit the datalist, but cant figure out how to, so I have it commented out at the moment.
[Code]....
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Apr 14, 2010
I have the below code that works for an asp.net repeater but I need to convert the logic so it works for an asp.net listview control...possible? Unfortunately, the same code throws errors when placed within my listview's itemdatabound event.
[Code]....
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Mar 1, 2010
When it comes to field validation, when I use a Compare Validator to make sure a date is a date or a numeric field has a number, I must also use a Required Field Validator to make sure there is something actually enetered. In other words, the Compare Validator allows a blank value even though a blank is not a date or number or whatever.
Is using both a Required Field Validator and a Compare Validator the way to do this or is there some way to make the Compare Validator also require input of some kind?
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Sep 30, 2010
I m working in vs 2005 project(Built before 2 years with deklarit and Infragistics) and not using Ajax Update panel instead I m using Ajaxprodll throughout the project and I cannot use the update panel as it requires the huge changes in web.config file and I dont want to play with config file so I keep using Ajax pro dll.On my page there is a tab control in which there are 4 tabs.Each tab contain gridview and each gridview has same number of column.Firsttab is Daily has daily girdiew,Second Tab is Weekly and has a weekly gridview,Third Tab is Fortinght and has fortnight gridview ,4th is Monthly and has monthly gridview.
First two coumn named as Start Date,End Date in all gridviewMy Q1: If user enters the start date, end date should be greater than start date,at the same time the data (period) entered in first row sholud not be repeatedfor second row or third row or any row in the gridview.It is applicable for all gridview .How should I achieve it?My Q2(Logic????): When user enter the start date and end datein first gridview(Daily) that period should not be allowed to enter in the second gridview(Weekly)or third gridview (Fortnight) or Fourth gridview (Monthly) and Similarily if I enter the period for weekly then it should not be repeated in any other gird and soo.on.My Q3:How should I add row at runtime in gridview without postback? My Q4: What should I do to get Dataformat inside the gridview
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Jun 22, 2010
I have a listivew that is assigned a datasource in the code behind based on query string options. From what i have found out, once there is no datasource assigned in listview html then the sort feature stops working automatically and you must put the code in the _Sorting event. I cannot find a good example of this logic.
good example of the listview manual sort logic?
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Oct 20, 2010
I am dynamically generating the Row in GridView and saving the data in database using StringCollection. Instead of using StringCollection i want to pass the data(user entered data) to local variable , eg:
string name = txtFName; and so on. but it wont work for dynamically created rows.
So if you knw how to assign the user provided data in the local variable like above i have show.
The code for inserting the records for dynamic created rows in grid view via StringCollection is below
protected void btnSave_Click(object sender, EventArgs e)
{
int rowIndex = 0;
StringCollection sc = new StringCollection();
[Code]....
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Jan 18, 2010
I need to create a hash key on my tables for uniqueness and someone mentioned to me about md5. But I have read about checksum and binary sum; would this not serve the same purpose? To ensure no duplicates in a specific field.
How can implement this? do I need to write code in my vb application which populates the tables with stored procedures or can I do this from SQL server 2005 studio express?
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Feb 7, 2011
After hitting the insert button the insert stored proc is run. if the record already exists then stored proc returns a specific value.I need to refill the details view textboxes with the values the user typed in.I am using the ItemInserted event handler.I seem to reference the control okay but the text doesn't change...even when I replace the command.parameter to just a literal text like "test".
TextBox tNPA = DetailsView1.FindControl("InsertName") as TextBox;
tNPA.Text = command.Parameters[0].Value.ToString();
So what am I missing. I also tried a detailsview1.databind() before and then tried after the above line and still no luck.
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Jan 20, 2011
I want to change the text of gridview empty data template based on diff scenerio's.
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Oct 20, 2010
I have a repeater control having columns in it.When I bind the control to a data source then some of the columns become empty when there is no data associated with it.I want to hide the column if there is no data associated with it.I was trying to implement a solution given in this thread:
[URL]
However,I am not sure how to write the logic for hiding and showing the placeholder.I have written some code for the same but that clearly doesn't work.The following is the .aspx as well as the code behind which I am using:
[Code]....
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Feb 21, 2013
I used the link below [URL] .....
I have nearly 25 columns in my Gridview so when i apply the scrollable gridview the header does not align with template field.
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May 5, 2010
what's is better?That I put my business logic in the sqls(DataStore) or in the C#.DataSore:
[Code]....
What's faster and better?
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Dec 7, 2010
I am trying to apply themes to my site using profiles. So in my web.config file I need to write the code so that once that user logs in, then the theme of the site changes. Right now I just have color themes; yellow, blue, and orange.
If this isn't in the right section feel free to move it.
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May 11, 2012
I can able to apply css for the validation summary in my pop up.
I used Fore color properly in validation summary, applied style also but color is not reflected.
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Feb 5, 2011
I have a Detailsview working fine in ASP.NET 2.0 VB. where I can obtain any links or articles detailing the settings for the Template as a guide to me apply RegularExpressionValidators to a number of the fields in my application.
My application works fine with the Required Field Validator. The majority of examples that I have been able to find are using this particular Validator.
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Aug 25, 2010
I have a page on this page I have multiple user control and one of the control is on the user control.
on a button click event I can check all the validatoin which are on the main page, but I can't apply the validation on the user control which is not on focus. On the button click even if that particualar tab is on focus , the validaiton works otherwise it just ignores it.
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Feb 25, 2010
I get a list like this
List<Territory> lst = new List<Territory>(); //it is from a class file.
How do i apply to a listbox in the .net form?
I was trying like this and i get error.
DropDownList1.DataSource = lst1;
DropDownList1.DataTextField = "Description";
DropDownList1.DataValueField = "ID";
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