I've working on an app that displays a restaurant menu and the user has to select which items he wants. I'm using group boxes instead of multiple forms for each of the different categories of food and drink. However some of the group boxes are not becoming visible even after I set their visibility to true. Any help on this issue please?
The main form has the following code:
private void drinksButton_Click(object sender, EventArgs e)
{
drinkGroupBox.Visible = true;
}
The designer has this code:
this.userGroupBox.Controls.Add(this.drinksButton);
Try this
private void drinksButton_Click(object sender, EventArgs e)
{
drinkGroupBox.Visible = true;
drinkGroupBox.BringToFront();
}
Would be interesting to see where it says
...Controls.Add(this.userGroupBox);
Related
I've a user control with 2 labels and two textboxes. When the label is clicked the textbox's visible prop is set to true. Here's the code I've used:
private void label_Heading_Click(object sender, EventArgs e)
{
label_Heading.Visible = false;
textBox_Heading.Text = label_Heading.Text;
textBox_Heading.Visible = true;
textBox_Heading.Focus();
}
After the textbox lose focus, it's visible prop is set to false and the label is updated with the text. Code:
private void textBox_Heading_Leave(object sender, EventArgs e)
{
textBox_Heading.Visible = false;
if(textBox_Heading.Text != "")
label_Heading.Text = textBox_Heading.Text;
label_Heading.Visible = true;
}
The code to create user controls on click:
private void label1_Click(object sender, EventArgs e)
{
TaskCard _taskCard = new TaskCard(++TOTAL_ITEM_COUNT, PanelName);
panel_DeletedItem.Controls.Add(_taskCard);
panel_DeletedItem.Refresh();
}
These code work fine when a single user control of this type is added to a panel. But if I add more than one, the code works only for the first user control, but it wont work for the new ones, although the event is fired for every user control. What am I missing here? Please suggest.
If I add a mbox to this code, the mbox is displayed for any control, but the rest of the code won't work, except for the first one.
private void label_Heading_Click(object sender, EventArgs e)
{
MessageBox.Show("Test"); // this will display, but the rest of the code is not executed or changes are not visible, i.e., the teboxes are not displayed even if I click the labels
label_Heading.Visible = false;
textBox_Heading.Text = label_Heading.Text;
textBox_Heading.Visible = true;
textBox_Heading.Focus();
}
I noticed that by programmatically selecting a Tab in the Tab control selects a control contained in the tab page selected.Is it possible to change this behaviour. I have a control in a tabpage that I do not want to be selected when the its tab page is selected from a button click. I have a simple form with a tab control and two tab pages. When button1 is clicked the tab page 2 is selected but so is the datagridview contained in that tab page.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
dataGridView1.GotFocus += DataGridView1_GotFocus;
}
private void DataGridView1_GotFocus(object sender, EventArgs e)
{
//this event is called from button1_click
}
private void button1_Click(object sender, EventArgs e)
{
tabControl1.SelectedTab = tabPage2;
}
}
By default when you select a tab (or even when you start a form) the control which is the first in your tab order is automatically focused. I am assuming this is what is happening here.
You can solve this by simply unfocusing the datagridView in question. There are multiple ways to do this. Firstly you can set focus to the control that you wish to be selected instead of the dataGridView. This can be done by:
myControl.Focus = True;
Or alternatively if you want non of the controls to be selected you can set the active control to Null:
ActiveControl = NULL;
Note: ActiveControl is a property which contains the current active control.
As to where this code should be placed. That is totally dependent upon you. You can do it as soon as you change the tab in the button click event. This is what I would prefer.
I am sure there are other kludges as well to acheive the same. Hope this helps.
Here is code to select tab
private void button1_Click(object sender, EventArgs e)
{
// we can select tab by tab name
tabControl1.SelectTab("tabPage2");
tabControl1.SelectedIndex = 1;
tabControl1.TabPages[0].Hide();
tabControl1.TabPages[1].Show();
}
Most of my dropdown boxes use the SuggestAppend property, meaning when you start typing in the box, it will make a shortlist of the items that match your case. However, if I do this after opening the drawer, this happens:
I have tried using this method, but it closes both instead of just one:
private void cmbLoc_TextChanged(object sender, EventArgs e)
{
if (cmbLoc.Text != "")
{
cmbLoc.DroppedDown = false;
}
}
I am trying to have it so that when I type something into the text box, the original dropdown will disappear, and the SuggestAppend draw will appear. How can I manage this?
It worked if I used KeyDown. Try and tell if that helps
private void cmbLoc_KeyDown(object sender, KeyEventArgs e)
{
var comboBox = (ComboBox)sender;
comboBox.DroppedDown = false;
}
Noob here.
I have a series of comboBoxes (boxen?). The first box, called AcadLevel, determines whether the second box, called Plan, shows graduate or undergraduate plans. Each choice in comboBox Plan has a few different SubPlans, which are shown in the third ComboBox called SubPlan. Here's the code that displays subplans for MSCS.
private void Plan_SelectedIndexChanged(object sender, EventArgs e)
{
if ((AcadLevel.SelectedIndex == 0) & (Plan.SelectedIndex == 0)) // show subplans for grad, MSCS
{
SubPlan.Items.Clear();
SubPlan.Items.Add("Advanced Computing");
SubPlan.Items.Add("Software Engineering");
SubPlan.Items.Add("Database Engineering");
The behavior I don't like is that after a MSCS subplan is selected, if I go back and choose a new plan (like Master of Accountancy) the MSCS subplan STAYS there until a new subplan is selected. When the user clicks back to the Plan combobox, I want the SubPlan comboBox to go BLANK, in anticipation of a new plan being chosen. How can I do this? I tried a few things in desperation...
private void Plan_Click(object sender, EventArgs e)
{
SubPlan.Items.Clear();
SubPlan.Update();
SubPlan.Refresh();
The same thing applies to the AcadLevel comboBox. If the user clicks back to that, I want the Plan and SubPlan boxes to go blank.
Found it. I figured it would be best to put the title of the comboBox back instead of making it blank, so I:
private void Plan_SelectedValueChanged(object sender, EventArgs e)
{
SubPlan.Text = "3. Subplan";
}
private void AcadLevel_SelectedValueChanged(object sender, EventArgs e)
{
Plan.Text = "2. Plan";
SubPlan.Text = "3. Subplan";
}
I have two Group Boxes grpMeter and grpTag. I have to place grpMeter over grpTag.. both need same location and size..
On button click, I have to make them visible alternately. Is it possible? I tried many times but only 1 group box becomes visible. Maybe because of the overlapping problem. I tried with panel, but the same problem arises. Is there any solution?
public void ShowMeter()
{
grpMeter.Visible = true;
grpTags.Visible = false;
}
public void ShowTag()
{
grpTags.Visible = true;
grpMeter.Visible = false;
}
Place both group boxes next to each other so that they don't overlap and see if it works then. If you made it work, don't move the one group box with the mouse, but select it only and then set the coordinates manually in the Properties list.
That way you can prevent the one group box from accidentially becoming the child of the other group box.
Try this logic inside a button_click event:
private void btn_Click(object sender, EventArgs e)
{
if (grpTags.Visible)
ShowMeter();
else
ShowTag();
}
Try this:
private void button_Click(object sender, EventArgs e)
{
grpMeter.Visible = !grpMeter.Visible;
grpTags.Visible = !grpTags.Visible;
}
See the code below. The button Click will toggle visibilty. Also it's important that you set one of the groupboxes as visible and the other one as invisible in your constructor
using System;
using System.Windows.Forms;
namespace TestForm
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
//This is important. Set one of them to be Visible and the other one to be invisible
grpMeter.Visible = false;
grpTags.Visible = true;
}
private void button1_Click(object sender, EventArgs e)
{
grpMeter.Visible = !grpMeter.Visible;
grpTags.Visible = !grpTags.Visible;
}
}
}
I am not sure but what you are looking for seems like FlowLayoutPanel. Then you can put group boxes next to each other and positioning will be handled automatically. This prevents accidentally putting one GroupBox into another or shifting locations. Also provides an easier working at design time.
One of the good way is to use RadioButton. Take two Radio buttons and place it inside a groupbox.
Something like this would work:
private void rdMeter_CheckedChanged(Object sender, EventArgs e)
{
grpMeter.Visible = rdMeter.Checked;
grpTag.Visible = !rdMeter.Checked;
}
private void rdTag_CheckedChanged(Object sender, EventArgs e)
{
grpTag.Visible = rdTag.Checked;
grpMeter.Visible = !rdTag.Checked;
}