hello, i have 2 win-forms.

On one form (form1) i have a simple textbox.
On the other form (form2) i have 1 combobox and 1 textbox.
The combobox and textbox are binded together to a datatable.

What i wan't is that when form2 loads firstly it shows the data from the textbox on form1.
And when i select another value wit the combobox it shows the new data from the textbox on form1 to form2.

My problem is when form2 loads firstly no data is shown in my textbox. Why not???

I have the folowing code:



Nothing works? Please help!

Not sure if this will help but this is the way that I pass textbox inputs to Listview between two forms.

For this example assume that there are two forms (Form 1 and Form 2) Form 1 has a textbox and a command button. Form 2 has a ListView and a Command Button.

For each object that I create on Form 1 that is going to pass data to Form 2 I change the modifier in the properties list from "friend to public" So for this example, you have a text box on Form1 that will pass data to a list view on Form 2. So we change the modifier on the text box on Form 1 from "Friend" to "Public" We also change object you are writing to (Listview on Form 2) from "Friend" to "Public" as well. You do not need to do this for the command buttons that initiate the data move. The modifiers are found in the object properties window about half way down Max length and Minimum Size.

Next, I add a new module to my project. (project=> add new item => module)

Generic code for the module to make both forms public would look something like this:



The code on the two forms would look something like this:

Form 1:



**Note that we are using the Public Class on both forms.

Code for Form 2



In your example you should be able to replace the Listview from the example above with your data grid. Hope this helps.

Check out "shared variables"... and then have your forms send your databack to a shared variable to pass between the two in a third class..

if I have time between work I'll try to jin up an example.

Actually I take it back I have no idea what you mean regarding the interaction of the combobox to the two forms (or the two textboxes). As for getting your value to one or the other.. simply use a property object. Here's the code.





If you explain how you want the combobox to interact I can probably provide more information.

This post has been edited by modi123_1: 30 Jun, 2008 - 01:18 PM

Thnx for the reply,

The code you posted works correctly.
But try this:

Put a combobox and textbox on form1. Bind both to a datatable.
Load form2 first when running application, the textbox1 on form2 then must refer to the databinded textbox on form1 but it doesn't show any value.

That's my problem!

Data bound to a table how? I get why a combobox would have a selected value and a display value.. but what's the relation with the text box?
Second, so when the program runs the first form to come up is form 2? Wouldn't that be form1?
Third, it sounds like a timing issue... if Form2 is already there, then form1 shows up, you need an event that triggers from form 1 to form2 to have it update the value.

With the combobox i select a value, textbox1 then shows a belonging value to the selected value from the combobox. For example i select the option "fruit" in the combobox, the textbox1 then displays "apple".

For the example it doesn't mather which form loads first.

Let's say form1 loads first, then i wan't the textbox on this form to show the value "apple" because this is for example the first value from the fruit datatable and so the first value displayed in textbox1 from form1.

But untill now no value is shown in the textbox!?!

You first have to visit the form where the selection can be made, then when you return to the first form the textbox shows the selected value.

gr.z