how to pass the textbox value to model in windows form,MVC-C#

Question

0.00/5 (No votes)

See more:

This will be a great help for me to carry my project further.

I need to check the text box value(form) with database. If it exist I try to show warning message and if not ask the user to enter the values.

I try to implement this code with Windows form,MVC format.

Can you give sample code for this? Any suggestion ideas?

Thank You.

Posted 6-Nov-14 6:42am

sajee1

Updated 6-Nov-14 9:02am

Nelek

v2

Add a Solution

Comments

BillWoodruff 6-Nov-14 14:51pm

Welcome to CodeProject !

What user action with the TextBox do you want to use to trigger the query of the DataBase ?

That action should raise an Event to the Controller, then the Controller interacts with the DataBase, and updates the View (Form, TextBox) as necessary: correct ?

Please show some code, or describe what you are doing now in more detail.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Suraj Sahoo | Coding Passion · Answer 1 · 2014-11-06T07:20:00

Solution 1

A small suggestion. One thing you can do is, On focus out from the textbox retrieve the value using its id like
$("#textboxId").val();
based on that value make an ajax call to the controller action if you are using MVC, where you would check if the textbox value exists or matches with the data from the database. If exists return true else if false then alert that the user needs to add the values. This is what can be achieved through MVC in .NET.
Post back your queries if any.
Thanks
:)

Posted 6-Nov-14 7:20am

Suraj Sahoo | Coding Passion

Comments

BillWoodruff 7-Nov-14 2:19am

Good idea, but I'd add the advice to perform simple validation in the View, and not trigger interaction with the Controller if the data is invalid.

[no name] 7-Nov-14 2:28am

Yes Bill thats the best way to be done. But this would be possible on the post action, I think he needs to check once out of focus. Still we are anticipating , the man himself has no response.. ;)

sajee1 7-Nov-14 3:48am

Hi..!
Thanks All;

This is about windows form. Not web form..Do you have idea..?

sajee1 · Answer 2 · 2014-11-06T21:52:00

View:
private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{

//textBox1.Text = controller.CheckAndGetBarcode();
MessageBox.Show(controller.CheckAndGetBarcode());

}
}
Model:

public class ProductModel
{
//public string s;

/*public string GetBarcode()
{

label_nameDataContext ptable = new label_nameDataContext();
var pr = from Product p in ptable.Products where p.Gtin == "8" select p;
foreach (var item in pr)
{
s = item.ProductCost.ToString();
}
return s;
}

}

Controller
public string CheckAndGetBarcode()
{
string returnvalue = "";
if (CheckAvailability())
{

ProductModel model = new ProductModel();
returnvalue = model.GetBarcode();
}
return returnvalue;
}

public bool CheckAvailability()
{
return true;
}

In model i gave 8 by manually...What i want to do is instance of 8 i want to get the value of textbox1.

Can u help me?