I have a textField inside a tableViewCell. I recently noticed that if I enter a value in the textBox, and then scroll the cell off the screen, the value in the textbox disappears.
please someone help me out for how to store the values temporarily.
Thank you in advance
Bks when scroll back, in datasource function cellForRowAtIndexPath, the textfield is reused.
So what u need to do is save the textbox's text value while editing, and assign the value to this textbox(or should call it textfield) in cellForRowAtIndexPath.
see the UITextfield delegate function:
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
Related
The Issue:
I have two buttons, button "Apple" and button "Cookie".
When I press the "Cookie" button, text should show saying "Cookie" on screen (which it does)
THEN, when I press the "Apple" button, the text should UPDATE to "Apple" instead of "Cookie"
The problem is, with my current code, whenever I press the second button (Apple) -- the original "Cookie" text isn't removed, it appears underneath the "Apple" text.
I'd like the "Cookie" text to be removed from the screen when I press the apple button or any other button (over 10 buttons)
How would I achieve this within touchdevelop?
Current Code:
Assistance is very much appreciated.
Try this project: http://tdev.ly/ydcl.
To change what is displayed when a button is clicked, set a global variable and change its value when on tapped is called. In TouchDevelop, the page display is refreshed automatically so that any changes made when a button is tapped will occur immediately. There is no need to hide or show part of the display; just include that section in an if statement and change the if statement condition when a button is tapped. If you wanted to show one of three possible layouts, use an if statement that tests the value of a string or number for one of three values and changes that value when a certain button is tapped or condition is met.
I am new to WPF. I have a problem with ComboBox that is placed within a cell of a grid. I am using xceed grid control. Within the xcd:CellEditor tag, I have this ComboBox control. The combobox is populated with values properly with required value in it selected but when I click on the combobox, the selected value is cleared (showing empty selection) and I had to click on the dropdown arrow to display the list and select that value again.
This problem is occuring to me when I am using the Text property of the ComboBox but when I replace the Text to SelectedValue then I don't see this problem. Can anyone throw some light on this.
Following is what I have changed.
From Text="{xcdg:CellEditorBinding}" to SelectedValue="{xcdg:CellEditorBinding}"
I have kept 10 Text box in a form to enter the value to my Sql database. And After a Entry i don't want to clear all my text box in a button click event, I need to clear only 4 text box to be cleared on a Button click event to make an another Entry. So please someone help me to clear this..
Explicitly assign empty string to Text property of those four textboxes on button click. Something like.
textBox1.Text = "";
textBox2.Text = string.Empty;
.....
textBox1.Clear();
Is all you need to use for the selected boxes.
on button click
TextBox1.Text="";
TextBox2.Text="";
Please Use the List and Lambda Expression For this:
List<TextBox> tb=new List<TextBox>() {textbox1,textbox2,textbox3,textbox4};
tb.Foreach(u=>u.Text="");
I have a UITableView and a UIButton. When the UIButton is pressed, it prints the text of the UITableViewCell that is selected to the console output.
However, when no selection is made on the UITableView, it defaults to row 0, and displays this text.
How can I determine if there is no selection made, so that I can bring up a UIAlert?
Perhaps you can try storing the index of the cell when the didSelectRowAtIndexPath: method triggers. That way you can keep track of whether the user has selected a row since the view has been shown
i want to display both TextBox and TextField on the screen at a time but i am unable to add TextBox to form. is there any way to display both of them at a time. that is textBox at the top and TextField below it. plz help me. i will be pleased if any code is given
thank u in advance
A TextBox is a Screen, not an Item, therefore you cannot add it to a Form, and there is no way to display both of these things on screen at once.
If you want to display some additional text on screen while a TextBox is active, you can use its title (via setTitle()), or you could scroll it across the top using setTicker().
I guess, you must write you own TextBox component. It must extend Canvas. And you must paint it yourself, using drawLine, drawString.