invisible datagrid column

[egdotnet]

I have a datagrid, which is bound to a datatable with 4 or 5 columns, which in turn gets its data through a function from an xml document. now i need to have an ID column for things the datagrid the does, but don't want it to be visible. i tried using:

 

mydatagrid.columns(1).visible = false

 

but since the columns are bound at runtime, they appear when the page runs, but if i have it count the columns, the only one it knows is the one created at design time with the "select" button in each row. so is there a way to keep a bound column there, but make it invisible to the user?

[Joe Mamma]

I have a datagrid, which is bound to a datatable with 4 or 5 columns, which in turn gets its data through a function from an xml document. now i need to have an ID column for things the datagrid the does, but don't want it to be visible. i tried using:

 

mydatagrid.columns(1).visible = false

 

but since the columns are bound at runtime, they appear when the page runs, but if i have it count the columns, the only one it knows is the one created at design time with the "select" button in each row. so is there a way to keep a bound column there, but make it invisible to the user?

So this is a row ID?

or a common ID, where it is the same ID for every row in the column?

[egdotnet]

This is a row ID (remember that the it needs to remain consistent with the row it represents even when i sort, change pages), but unless there's a special way of assigning IDs (is there?), i'm not sure why that should matter.

[Robby]

try this...

mydatagrid.Columns.Item(0).Visible = false

[egdotnet]

it didn't make any difference

[egdotnet]

invisible bound column

 

anybody know how to make a column bound at runtime invisible because the above suggestion didn't work?

[Tamer_Ahmed]

Try this

myDataGrid.column(ur column's index).visible = False and it's work i Tried it

[egdotnet]

but it doesn't! ive tried it tons of times & it can see the column created @ design time (w/ the select button) but if i have it tell me the number of columns in the grid, it only sees 1. it shows the other ones but i can't make them invisible.

[egdotnet]

the only thing is maybe i'm putting it in the wrong place... here's where i've been putting it:

 

datagrid1.datasource = showdata()

datagrid1.databind

datagrid1.columns(1).visible = false (i get an error here)

[egdotnet]

i found this on MSDN: "When using both, explicitly declared columns will be rendered first, followed by the automatically generated columns. Automatically generated columns are not added to the Columns collection." (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwebuiwebcontrolsdatagridclasscolumnstopic.asp)

 

Mine are automatically generated so how do i make those invisible?

[Tamer_Ahmed]

what is the error message say

[egdotnet]

what is the error message say

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

[Tamer_Ahmed]

i think ur problem's in The Method showData()

coz i tried the code in many ways and it's work ur problem in this method check the code there