I have a problem with my form TabPageContent:
I have to create several tabPages, each tabPage contains grids with "New" button, all these grids point to the same datasource.
when I click on "new" in tabPage 2 the cursor changes to tabPage1 without creating the new line on the grid of the tabPage2.
I do not think this is a supported scenario: several grids using the same datasource. The reason is that Ctrl-N or New button set focus on the first grid of the datasource. Read only it works fine, it seems.
You can have several datasources with the same table, each datasource can be referenced by one grid.
Related
I am new in Xamarin forms and I need to implement a table in Xamarin forms. Requirement is-
Initially table will be empty and has four columns. After feeling form and clicking on submit button, new entry will be added in table. First column is Test, second column is single radio button, third column is again single radio button and forth column is button to delete that row it self.
I need to know which approach will be suitable to implement this requirement. Is it grid layout or tableview or something else.
Consider Table View use cases vs List View use cases. Table views are meant for static content. You should really consider a list view for dynamic content. (like adding a row with views) Being new to Xamarin.Forms, you should take the time to read completely through the documentation as (at least for me) it wasn't straightforward. Also, consider a WebView as radio buttons are not going to play nicely across platforms, and your problem would be easily solvable with jQuery.
I have two grids. The first displays keys, and the second displays a list of related items in another table. Since the grids are on different tabs, I put a filter on the pageActivated method for the second grid's tab.
Some pseudo code to get my point across without posting 200 lines of x++
override page2Activated() {
dataSource2_ds.removeFilter();
dataSource2_ds.filter using grid1Field.valueStr();
}
This works nicely, as long as grid1 has rows in it when the form is opened. If there are no rows when the form is opened, even after adding a row to grid1, something doesn't get updated, and grid2 will always be blank.
Then, I tried looking at the datasource instead of the grid fields.
override page2Activated() {
dataSource1 firstTable;
firstTable = dataSource1_ds.getFirst(true);
dataSource2_ds.removeFilter();
dataSource2_ds.filter using firstTable.recID;
}
The problem with this one is that it only works if you click the checkbox next to a record.
I'd like to to work with a highlighted record in grid1, without having to click the checkbox.
Any suggestions?
Question answered in comments above. Posted as answer so the question can be marked closed.
Rather than using code to manually filter the records, link the tables using the datasource properties JoinSource and LinkType. Set JoinSource to the linked table and LinkType to Active.
I have a Query that the datasources it is set to can change dynamically. I want to take the results of this Query and bind that to a Grid, so each time it may have new fields, and data.
I already added a Grid to my form, and added the Common table as a datasource. I tried to set the dataSource of the grid, and iterate through the fields and dynamically add them, but no data is showing up.
Have a look on the form SysTableBrowser.
It builds the grid based on a tableId.
Maybe you can change SysTableBrowser to accept a query.
Good luck!
I've been using jqGrid ASP .Net and really happy with it but I required a permanent blank new row at the top of the grid which allows a user to enter a new row on the fly rather than using the add row dialog.
From looking at the trirand forums, this is currently not supported 'out of the box'.
I have seen this forum post http://www.trirand.net/forum/default.aspx?g=posts&t=212 but it doesn't work (alert is shown but nothing else happens) and also requires the user to click the New button rather than the new row always being at the top of the grid.
Any help would be greatly appreciated,
Cheers
Additional Information:
I am wanting a permanent blank row at the top of the grid where the user enters every new row, below this row would be the data already entered (loaded from the database on page load). As the new row is added (when the user hits enter) the row is displayed in the grid (which I gather would also fire the OnRowAdding event for me to insert into the sql server) and the permanent new row would clear its values ready for new entry. I am also using inline editing (which is working fine) and committing the changes to a sql server database. I am populating the grid on load of the page by setting the datasource to a datatable and calling DataBind()
Look at this example which I created for the answer. The example works with local inline editing and fill the grid with empty data at the beginning. You can modify it and fill only in the first line empty data and all other rows fill with "real" data.
Another way: you can just place "New" button above the rows (see Add toolbar in the bottom of the header using jqgrid which describes how to do this) on the second navigation bar. So users will see it immediately. You can also place custom button instead of a standard "New" button. This custom button (for example "+") could just insert a new row and goes in the inline editing mode.
If all this is not what you want, you should include in your question more detailed information which kind of editing you use (inline, cell or form), where you hold the data (local, only on the server or use loadones:true to have a mix data holding).
Ended up solving this problem by inserting a new row to the datatable when I populate the grid as follows:
DataRow dr = dtTimesheets.NewRow();
dtTimesheets.Rows.InsertAt(dr, 0);
grdTimesheet.DataSource = dtTimesheets;
grdTimesheet.DataBind();
Then on the RowEditing method I check if it is the in fact the new row and perform my insert instead of an edit and then reload the grid which puts a new empty row at the top of the grid again.
I have an ASP .net grid view. It has some template columns like a command button, a text box, and a dropdown control. When I click the command button, a new row needs to be inserted below the current row (from where I hit the command button).
If I have rows 1 and 2 and I hit the command button in row1 a new row needs to be inserted between rows 1 and 2
Now in the new row I should be able to select values from dropdown and enter some value in a text box and finally hit my save button. (Which should work fine as I am expecting)
The grid view is bound to some data source say for instance a datatable for now.
Oneway that I could think about is when Command button is clicked, I can add a new row to the datatable in my server side code and rebind the grid. But I am not sure that, from a UI perspective how I can make sure that the new row goes exactly below the row from where I hit the command button.
Any thoughts or comments?
I think a much easier approach will be if you try to add the row in your data source and then bind to the GridView again. This is easy if you have DataSet or a custom entity collection. Since, you are using DataTable this will also work. Handle the click event and find the row that the user clicked. Go back to the dataTable and add an empty row there. This will make sure that the controls inside the GridView are persisted and you don't have to worry about adding DropDown controls etc.
You have to sort the datasource by an virtual index saved in an invisible column. On first databound(perhaps you take a DataView because of ots sorting capability) it will set to the original rowindex. After first hit of the save button you get the datatable again from database and add the additional row with an index after the "selected" row. Then you bind the GridView again with the sorted DataView.
I think you need another invisible column to detect the "temporary" row. If you dont need to edit the "normal" rows then you can use edititemtemplate for this. Otherwise you can make the dropdown and textbox visible and the other controls invisible in GridView.OnRoawDataBound.
There is a code sample that is used for adding a new row in between rows in a grid view.