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Hello All, I have a list of items in the listbox.(The items to the list box were added from the textbox eg ( list Box1. To edit you may assign the edited test like: I tried your solution like this: int index = list Box1. that is why it is calling this same the same code again and again. A solution which is good in one case may be the worst in another case.
Text)), Now If I have to alter the Listbox eg: If there is an item called Electricity in the listbox and now the user decides to replace Electriciy with an Item called Food by typing in the textbox how do I do this?? There may be number of 'electricity' items with different indexes. Text; But as soon as I select an item in the list box and try to feed a new value in the textbox1 it shows me this error: An unhandled exception of type 'System. Thank you all I tried your solution like this: int index = list Box1. i think you are putting this code in list Box1_Selected Index Changed event. Always remember, there is no single approach to a problem statement.
Suppose user enters House in the textbox then I am copying the House text from the textbox to Listbox and Combobox. but when i right click on columnname(categoryname) it says nvarchar(50).
Like this if the user enters House Electricity Food. Add(textbox1.text); it copies only to combobox1, but I have multiple combobox ie, combobox1,combobox2 ......comboboxn. The result: 1) The form looks like this in the beginning:refer First Pic of the Attachment 2) After double clicking the item Tap: refer Second Image of the attachment 3) I replaced the text Box Text witht the text "Cooler" and that gets reflected in the combobox and the listbox as well as in the third pic :) Check if this is exactly what you want. And also I wanted to copy the categoryname in my database column to the Listbox as soon as the form loads. Search in the internet for data binding in a list Box.
I was recently working on a requirement to perform Update and Delete operations on a WPF Data Grid control (similar to what developers do in a ASP. The WPF Data Grid is an excellent control to bind with collections and provides various events to work with. This code changes the columns for ‘Salary’ and ‘Dept No’ in edit mode. After the completion of the wizard, the following model will be generated: In the XAML, the Data Grid columns are made read only using ‘Is Read Only’ property set to false. NET EF, select ‘Employee’ table created in SQL Server using the script. You may update it directly in the data base and reshow the table afresh at the front end. If my understanding is correct, then I don't think there is a need for updating the added items in the list box.
(key,value); for all the item, create above object(remember key should be unique), where value will represent the string to display, like "Electicity" etc. then get the selected item and change the value to new value or replace the old key value pair item with new one. However, you may also use the item index property which is also unique for each item. Text; But as soon as I select an item in the list box and try to feed a new value in the textbox1 it shows me this error: An unhandled exception of type 'System. Thank you all above give code will trigger list Box1_Selected Index Changed event so be careful. 2) Another more handy approach (if the table is not too big) is to write code to show records in the list box directly from the db table and every time you perform an operation (add/edit/delete) in the database just call the method of redisplaying the data afresh in the front end.