[Gambas-user] Array data to Gridview?

[Rolf-Werner Eilert]

Hi Riccardo,

just use the DATA event for the Gridview.

In short: You just define the number of Columns and Rows for the 
Gridview. As soon as you define the Rows, the Gridview will begin to 
load the contents for the cells by jumping into the Data event over and 
over again.

You only have to make sure that for every Row there are data somewhere 
in the program or make sure that if there are no data yet, there is some 
code in the Data event which controls that. All other code for 
displaying the contents in the cells is in the Data event.

The Data event will also be jumped in when the user scrolls the table. 
The Gridview will only load the part of the Gridview which is visible. 
Or when the user clicks on the form or makes it come to the front. That 
means, besides from providing the cell data you don't have to care about 
anything, and it is extremely fast.

Regards
Rolf


Am 06.02.2017 22:24, schrieb Riccardo:
> Hi,
>
>
>
>
>
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>> I have a multidimensional array with 32,000 records. It takes quite a while to load this into a Gridview, and even longer if I provide the user with some feedback during the process (an updating label, a progress bar and so on...).
>
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>> Is there a faster way to load the array data into the Gridview? Currently, I'm iterating over the array and updating the Gridview cell by cell. Should I hide the Gridview during this process?
>>
>> For i = 1 To arr_Response.Length - 1
>>      For j = 0 To arr_Response[i].Length - 1
>>        grd_Response[i - 1, j].Text = arr_Response[i][j]
>>      Next
>> Next
>>
>> cheers.
>>
>>
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