I have a small project about datagridview and listbox in vb.net. But I don't know how can i create property table for each item which is inserted to list box.
I don't know how to describe but It's like that
I have a datagridview as property table to display and modified data, a text box and button to insert data to listbox.
When I add item "Shape1" it will create property table for"Shape1"
I fill data to property table for item "Shape1". Then save it as database.
Everytime when I click to item "shape1". It will show property table of shape1 again and I can modified and save it again.
Could you please tell me Is there any way or example to do like that.
Related
I am working with Syncfusion tools, and am trying to add a ComboBoxAutoComplete control to a Windows form. I have a DataTable that I'm using as my DataSource with two columns: ID and Name. I set the DataSource, DisplayMember, and ValueMember properties like so:
ComboBox1.AutoCompleteControl.DataSource = table
ComboBox1.DisplayMember = "Name"
ComboBox1.ValueMember = "ID"
The control loads correctly, but it appears that the DisplayMember does not get applied. The control will display only the ID of the selected item. When I expand the drop-down, it displays the entire table (both columns). I tried setting the DisplayMember and ValueMember directly on the AutoCompleteControl, but those properties do not exist. Is there a different property that is used to control what text is displayed in the ComboBoxAutoComplete control?
We have prepared the simple sample in which we have assigned data table to "DataSource" property of AutoCompleteControl inside the ComboBoxAutoComplete to enable the AutoComplete features.
To display the value based on DisplayMember assigned the Data table columns to “Columns” (collection property) of AutoCompleteControl and set “MatchingColumn” value as True for which column has been set in DisplayMember.
Please check with the sample from below location.
Sample: ComboBoxAutoComplete_Sample
Regards,
Keerthana J
If I setup a lookup for a field when designing a table (i.e. through the Lookup Wizard) and I set "Allow Multiple Values" to "Yes", a multi-select combobox (i.e. with check-boxes) is displayed in the relevant field in the "Datasheet" view of the table. My question is the following: Is the text-box component of a multi-select combobox control actually of any use? While a single-select combobox lets you type a new value that is not in the list or facilitates the auto-complete feature when typing a value that is included in the list, but the multi-select combo box prevents you from typing anything in its textbox, and that behavior doesn't seem to change via the properties of the combobox control.
The reason I need this feature is because I want to type there something not in the list, in order to trigger the control's NotInList event, so that I can update the corresponding lookup table with the new value I typed.
Thanks
I have a datagrid from devexpress in a winform application.I populated the datagrid from code (datasource=my datatable with 2 strings columns and one of type int (receive 0 and 1 values-should be checkbox on form).
I added a datagrid and from designer I added 3 columns.The last one of type checkbox.I set
UnboundType=Integer,
UnboundExpression=my column name from datatable :
DisplayFormat = Numeric,
columnedit = checkbox,
Displaycheckedvalue = 1,
displayuncheckedvalue = 0.
When I run the application always my checkboxes are blue.If i press one checkbox appear a check but when i go to the next row the previous value is again blue.What should i do so why the application keep the checks?
Don't set the column to be unbound, it is in your datasource after all.
What you want to do is just to set Displaycheckedvalue and displayuncheckedvalue as you have done, nothing more.
You can make a class which got a property for each column of your table. The int value would be a bool and so you can use List as datasource. The Grid will automaticly add checkboxes for the bool value.
If you want to use DataTable see Stig's post but in my opinion it is more beautiful to use classes and List.
I am displaying a database table on a grid view and displaying a selected item's details in a detailsview.
Here's the problem:
There's a combobox in the detailsview and I want to display the added value's string on grid and I want the combobox to select this value.
It will be possible to update, delete the selected item from grid or add a new item. And I couldn't do the transformations of string- comboboxitem-database item. And I am quite confused on the binding operations. I hope my question is clear enough. Thanks in advance for any help.
One solution that may preserve your sanity. Only allow edits in your detailsView. Use the grid to Add (clicking an Add Link which shows the detailsView) or Delete. Is it really necessary for the user to be able to edit in either place?
I was trying my hand on binding in Wpf.I am trying to make a dataenrty screen.for instance,I have a textbox and a combobox and a listview.. users enter pick an item from the combobox,add a comment and add the item to the listview.This is the flow.I have a master table for the combobox,i have its selectedvalue bound to a Item field in the ordertable and the textbox.text bound to comments field in order table.fine up to now.
from here on i'm confused,should i bind the lsitview to the order table?.If yes then how will i create a new row in the datatable each time add row is clicked..?
if a new row is created in the datatable,next time the user selects an item it should be bind to the newly created row...how can i do this...pls help...i'm pulling my hairs on this...
you can see this
http://dotnetstories.wordpress.com/2009/03/28/create-a-simple-data-centric-wpf-application/