Hide a button that is dynamically add in c#.net?

Question

0.00/5 (No votes)

See more:

C#

the main problem is this code when i click 1st category it generate sub button but when i click 2nd category it does not show sub button of 2nd category, it is hide by 1 sub category

.

What I have tried:

C#

private void WindowsForm_Load(object sender, EventArgs e)
       {
           DataTable dt = bllcat.getallcategory();
           for (int i = 0; i < dt.Rows.Count; i++)
           {
               Button newPanelcategory = new Button();
               newPanelcategory.Name = dt.Rows[i]["category_id"].ToString();
               newPanelcategory.Text = dt.Rows[i]["category_name"].ToString();
               newPanelcategory.Location = System.Drawing.Point.Add(new Point(4 + i * 100, 4), new Size(50, 50));// here make use of your logic.
               newPanelcategory.Height = 50;
               newPanelcategory.Width = 50;
               this.Controls.Add(newPanelcategory);
               newPanelcategory.Click += new EventHandler(newPanelcategory_Click);


           }

       }



       public void newPanelcategory_Click(object sender, EventArgs e)
       {
           label1.Text = "\r\n" + ((Button)sender).Name;
           Button newPanelButton = new Button();


           DataTable dts = blpro.getproductid(Convert.ToInt32(Convert.ToInt32(label1.Text)));

           for (int i = 0; i < dts.Rows.Count; i++)
           {

               newPanelButton.Name = dts.Rows[i]["category_id"].ToString();
               newPanelButton.Text = dts.Rows[i]["product_name"].ToString();
               newPanelButton.Location = System.Drawing.Point.Add(new Point(4 + i * 100, 4), new Size(100, 100));// here make use of your logic.
               newPanelButton.Height = 50;
               newPanelButton.Width = 50;
               this.Controls.Add(newPanelButton);


           }

Posted 7-Feb-16 21:12pm

Member 12242717

Updated 8-Feb-16 19:43pm

v2

Add a Solution

Comments

[no name] 8-Feb-16 4:05am

Register your dynamic created buttons in an Array to Access them later in your code.

Member 12242717 8-Feb-16 4:29am

but sir i want to add a button from database values..

[no name] 8-Feb-16 4:53am

And what is the Problem? Use something like this:
Button[] panelButtons = new Button[dt.Rows.Count];
for (int xIx = 0; xIx < dt.Rows.Count; xIx++)
{
panelButtons[xIx] = new Button();
panelButtons[xIx].Tag= xIx;
// panelButtons[xIx].Text = ...
// panelButtons[xIx].....

this.Controls.Add(panelButtons[xIx]);
}

BillWoodruff 8-Feb-16 13:56pm

This is very confused code: why are you first creating a set of buttons, and then when one of those is clicked, creating another set of buttons ? All these buttons are being added to the same container (a Form, I assume), and you are giving them same names.

Please state clearly what your goal is here, and rewrite your question.

Member 12242717 9-Feb-16 0:45am

i'm creating POS touch system so when i touch in category it show all the sub category.

Member 12242717 9-Feb-16 1:41am

the main problem is this code when i click 1st category it generate sub button but when i click 2nd category it does not show sub button of 2nd category, it is hide by 1 sub category.

lukeer 9-Feb-16 2:46am

There are buttons created on form load (a) and buttons created on button click (b).
1) (a) and (b) have the same locations. Change one of the identical (4 + i * 100,... appearances.
2) All (a) share a Click event handler. They will do the exact same thing. Either throw them out in favor of just one button or have them do individual things.
3) (b) have no Click event handler attached at all. They won't do anything. What are they there for?

2 solutions

Solution 3

You need to get a reference to the control you want to hide. In this case you luckily get it as a parameter.

C#

public void newPanelcategory_Click(object sender, EventArgs e)
{
    Button buttonToHide = sender as Button;
    if(buttonToHide == null)
    {
        // Method has been called by a control that is not a button.
        //   That is unexpected.
    }
    buttonToHide.Visible = false;

    // Remaining stuff
    // ...
}

Posted 7-Feb-16 21:57pm

lukeer

Comments

Member 12242717 8-Feb-16 4:32am

it hide main button.. i want to hide child button after click second button..

lukeer 8-Feb-16 4:55am

It hides the button that user has been clicking on. If that's not what you wanted please Improve your question so it describes clearly what buttons are there, what is the "main button", which button shall be hidden.

Ralf Meier 8-Feb-16 6:40am

I agree with Lukeer.
What is the dependancy between the Button, which is clicked, and the button (or any other control) you want to hide ? Is it allways the same Button, you want to hide ?

Member 12242717 9-Feb-16 0:50am

yes sir

Ralf Meier 9-Feb-16 3:43am

Yes Sir means : Allways the same Button which is to hide ...?
In this case you could use the code-snippet of this solution from Lukeer and you only have to replace in the line "buttonToHide.Visible = false;" the buttonToHide with the Name of the Button which should be hidden. I suppose, that this Button isn't dynamicly created / is a fixed part of your form.

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)

Beginner Luck · Accepted Answer · 2016-02-07T21:36:00

Solution 2

C#

newPanelcategory.Visible = false;

Posted 7-Feb-16 21:36pm

Beginner Luck

Comments

lukeer 8-Feb-16 3:59am

There is no newPanelcategory in newPanelCategory_Click.

Member 12242717 8-Feb-16 4:37am

then what should i do for it..