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Jun 30, 2011

Writing a custom validator for a dropdownlist that is using autopostback. Seems to ignore the validation altogether. Why is it ignored and is there an easy fix? Note I did not use ControlToValidate

<asp:UpdatePanel ID="updatePanel" runat="server" UpdateMode="Conditional" Visible="true" RenderMode="Inline">
<asp:DropDownList ID="ddlCommandAssign" runat="server" AutoPostBack="true">


For debugging purposes, I want it to fail every time.It doesn't seem to be executing the behind code at all. For debugging, I added the line response.redirect("dummy.html") ... which never gets called, which also indicates (I think) that the validator never gets called.


Array In Structure Apparently Not Retaining Data?

May 6, 2012

I have a structure with 6 arrays inside it that is serializable so I can save the arraylist of them to a file and load them from the file. This part works.

When loaded from the file the data from a single specific record is populated to a listview control, this works on form load. The user can then select different records and in theory display the data in them (specifically the stuff in the arrays).

Displaying the data works as I'm editing the data, and on first load of the form and displaying the "default" record from the structures. Any other time (trying to switch between records during editing or after loading) the record is pulled (as shown by stepping through the code line by line) but the data in the arrays in the structure and only the data in the arrays is missing.

I've gone through all the code that runs and there is nothing that overwrites the array data in the records between displays so I'm at a complete loss as to why this data is going missing.

Below is the structure and the code.

Defined in a Module so as to be accessible when needed in several places through the program:

Public JBonus As New JobBonuses
Public JBonuslist As New ArrayList

On load to set dimensions to the arrays:

JBonus.Str = New Integer(999) {}
JBonus.Agi = New Integer(999) {}
JBonus.Vit = New Integer(999) {}


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Mar 20, 2009

Before I explain, the connection string I am trying to use is copied directly from elsewhere in the application that has always worked and still does.
Data Source=|DataDirectory|cdb.rmd;
Persist Security Info=False;

My problem is that no matter if I go to "Server Explorer", "Data Sources", or any other option it will not let me add a datasource/database. Up to this point I have done everything at runtime but now due to reporting issues I need to create a dataset in design view.

This is what happens:
I click "Add connection..."
I choose "Microsoft Access Database File" (Which it is...)
I click "Continue"
Form shows up with a field for my connection string, which I insert (shown above).
I click "Ok"

I get the following error:
Format of the initialization string does not conform to specification starting at index 0.
The "Test Connection" button is apparently useless as the connection passes even if the field is blank.

I have attempted reducing the connection string to only what is absolutely necessary.
I have copied the string directly from replacing my filename.
I have renamed the file to an .mdb extension.
I have used the full path from C: all the way to the file.

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Nov 5, 2009

I have some VB.NET (which I don't normally deal with) code which must be converted to C# (which I normally do).The code happens to be in a Windows Forms app. I notice a couple of places such as:

Public Sub New()
ParentWindow = Me

where there is no ParentWindow variable defined, and it doesn't seem to be inherited here:

Public Class MainWindow
Inherits System.Windows.Forms.Form
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(Though note that there is a similar variable with a lower-case first letter.)

and this:

DocumentCount = 0;

where, again, there is no corresponding variable definition and a straight conversion to C# Windows Forms indicates that there is no such member in the parent class.Am I missing an import somewhere, or is this a feature peculiar to VB.NET that doesn't translate directly to C#?

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Oct 4, 2011

I am using the CustomValidator for the first time but it doesn't seem to be firing DateExpireRequired_ServerValidate and just runs the code in the Click action.Been bugging me for a couple hours now! can anyone see a problem with what im doing?The DropDownList in my code below is populated using Roles.GetAllRoles()

<asp:Label ID="lUserRole" runat="server" AssociatedControlID="tUserRole">User Role:</asp:Label>
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May 28, 2011

I have a CustomValidator that checks if text entered in textboxes matches certain fields in a database. This was all working great before, but I have modified my page quite a bit since then and it is no longer working. I didn't think I changed anything that would affect this, but apparently I did. All my other validators (required field validators) are working correctly, but my CustomValidator isn't responding.So anyway, here is my code:

<asp:CustomValidator ID="CustomValidator1" runat="server" ControlToValidate="txtCoursePrefix" ErrorMessage="Course number is already taken."></asp:CustomValidator>


Everything is working up until CustomValidator1.SetFocusOnError = True and args.IsValid = False. I have tested the If statement and it's working correctly, it returns true and anything else I put inside of it executes.

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May 16, 2011

I know this has been asked a lot, but I have a server-side custom validator that is not being fired, and I cannot find why (also, I've copied examples that work from other places and cannot make it work...)

The code:
<asp:CustomValidator ID="MyValidator" runat="server" ErrorMessage="My error message" OnServerValidate="MyValidator_OnServerValidate" />
Validate function


EDIT 2: Added a Page.validate() on my button code, and it does not call the server side of the validator.Also, the custom validator is being called (at least the client/javascript side of it, but not the server side)

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Nov 3, 2011

I'm creating a form that will block the functionality of keyboard and mouse but apparently it is not working.

Here is my

Public Class Form1
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1.0n window onload, SN must b visible bt PN nt.

2.if i select SN other thn All...the PN shud b visible and if i select "All" ,PN hides.

3.when check box is checked- PN hides,and if it is unchecked- PN visible..

Important:-This whole ddl n chk box are in updatable panel,button is nt in that.I want a browser compatible code so javascript can't b used directly(cz they give problem in mozzila and chrome).Right now, i have done this JavaScript and its is working fine.

function window.onload()


but this code is not browser onload,onkeyup and onclick functions are used , but they dont work in other browsers except internet explorer.

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May 17, 2010

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I created the following code (note there is a CellContentClick handler for each DataGridView control and there are DeselectAll... and RefreshAll... subroutines for each tab page).

It's fairly straightforward. But notice where I placed the XXX NOTE comment below. If I place a breakpoint there, run the program and click on various cells in various grids, and then click on the specified grid cell, I can create situations where the breakpoint is never reached! Thus, I don't turn off the selection in other grids.

How can this be? Is there some setting for DataGridView controls that I've inadvertently set incorrectly (without my listing them all here)? Or is there some bug in VB I'm unaware of? The "DeselectAll" subroutine merely iterates over all DataGridView controls in the current tab page (except for the current DataGridView) and calls ClearSelection on each such grid. RefreshAll calls Refresh on every DataGridView on the current tab page.


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Jun 1, 2009

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