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Hi, all:
I need a help from you about DataGrid control.
I created a DataGrid, dg, in design view of .NET visual Stadio and use the
builder to add a Hyperlink column to dg.
I want to try to assign a column of URLs to this hyperlink column in
programming way (ie., dynamically assignment). However, I can not find a way
to continue doing it.

Do you have ideas about it? Thanks.

David

On Fri, 14 Oct 2005 08:53:14 -0700, david wrote:

> Hi, all:
> I need a help from you about DataGrid control.
> I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> builder to add a Hyperlink column to dg.
> I want to try to assign a column of URLs to this hyperlink column in
> programming way (ie., dynamically assignment). However, I can not find a way
> to continue doing it.
>
> Do you have ideas about it? Thanks.
>
> David
Let's assume that you have the list in the dataset, dataview, array. You
can use DataBinding to provide your grid with values. For a good article:
http://www.codeproject.com/aspnet/Ma...ataBinding.asp

HI David,

In DataGrid_ItemDataBound event:

HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
link.NavigateUrl = getURL();

HTH

Elton Wang



"david" wrote:

> Hi, all:
> I need a help from you about DataGrid control.
> I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> builder to add a Hyperlink column to dg.
> I want to try to assign a column of URLs to this hyperlink column in
> programming way (ie., dynamically assignment). However, I can not find a way
> to continue doing it.
>
> Do you have ideas about it? Thanks.
>
> David

Thank you.

It is not completely clear to me. For example, I have a list of URLs, called
URLs which is a column of a dataset, and I have a column of hyperlink column,
link, in the datagrid, dg. Assume that these two columns have the same size.
In the design view, I have left the URL box empty for the hyperlink column in
the property builder.

Now in the code behide, I try to fill in the URL box (property item) for
each hyperlink column item after I got the list of URLs. Can I do the
following:

dg.Columns("link") = URLs

Does it make sense?

David


"Elton W" wrote:

> HI David,
>
> In DataGrid_ItemDataBound event:
>
> HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
> link.NavigateUrl = getURL();
>
> HTH
>
> Elton Wang
>
>
>
> "david" wrote:
>
> > Hi, all:
> > I need a help from you about DataGrid control.
> > I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> > builder to add a Hyperlink column to dg.
> > I want to try to assign a column of URLs to this hyperlink column in
> > programming way (ie., dynamically assignment). However, I can not find a way
> > to continue doing it.
> >
> > Do you have ideas about it? Thanks.
> >
> > David

You need bind datagrid with data source:

dg.DataSource = dataSourceObject
dg.DataBind()

And specify link column's binding field:

Dim linkCol As HyperLinkColumn = CType(dg.Columns(link_index),
HyperLinkColumn )
linkCol.DataTextField = "URL_FIELD_NAME"

Or in DataGrid_ItemDataBound event:

using DataRowView object (e.Item.DataItem)

Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
HyperLink link = CType(e.Item.Cells(link_Column_index).Controls(0), HyperLink)
link.NavigateUrl = drv("URL_FIELD_NAME").ToString

HTH






"david" wrote:

> Thank you.
>
> It is not completely clear to me. For example, I have a list of URLs, called
> URLs which is a column of a dataset, and I have a column of hyperlink column,
> link, in the datagrid, dg. Assume that these two columns have the same size.
> In the design view, I have left the URL box empty for the hyperlink column in
> the property builder.
>
> Now in the code behide, I try to fill in the URL box (property item) for
> each hyperlink column item after I got the list of URLs. Can I do the
> following:
>
> dg.Columns("link") = URLs
>
> Does it make sense?
>
> David
>
>
> "Elton W" wrote:
>
> > HI David,
> >
> > In DataGrid_ItemDataBound event:
> >
> > HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
> > link.NavigateUrl = getURL();
> >
> > HTH
> >
> > Elton Wang
> >
> >
> >
> > "david" wrote:
> >
> > > Hi, all:
> > > I need a help from you about DataGrid control.
> > > I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> > > builder to add a Hyperlink column to dg.
> > > I want to try to assign a column of URLs to this hyperlink column in
> > > programming way (ie., dynamically assignment). However, I can not find a way
> > > to continue doing it.
> > >
> > > Do you have ideas about it? Thanks.
> > >
> > > David

thanks

I will try it.

David

"Elton W" wrote:

> You need bind datagrid with data source:
>
> dg.DataSource = dataSourceObject
> dg.DataBind()
>
> And specify link column's binding field:
>
> Dim linkCol As HyperLinkColumn = CType(dg.Columns(link_index),
> HyperLinkColumn )
> linkCol.DataTextField = "URL_FIELD_NAME"
>
> Or in DataGrid_ItemDataBound event:
>
> using DataRowView object (e.Item.DataItem)
>
> Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
> HyperLink link = CType(e.Item.Cells(link_Column_index).Controls(0), HyperLink)
> link.NavigateUrl = drv("URL_FIELD_NAME").ToString
>
> HTH
>
>
>
>
>
>
> "david" wrote:
>
> > Thank you.
> >
> > It is not completely clear to me. For example, I have a list of URLs, called
> > URLs which is a column of a dataset, and I have a column of hyperlink column,
> > link, in the datagrid, dg. Assume that these two columns have the same size.
> > In the design view, I have left the URL box empty for the hyperlink column in
> > the property builder.
> >
> > Now in the code behide, I try to fill in the URL box (property item) for
> > each hyperlink column item after I got the list of URLs. Can I do the
> > following:
> >
> > dg.Columns("link") = URLs
> >
> > Does it make sense?
> >
> > David
> >
> >
> > "Elton W" wrote:
> >
> > > HI David,
> > >
> > > In DataGrid_ItemDataBound event:
> > >
> > > HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
> > > link.NavigateUrl = getURL();
> > >
> > > HTH
> > >
> > > Elton Wang
> > >
> > >
> > >
> > > "david" wrote:
> > >
> > > > Hi, all:
> > > > I need a help from you about DataGrid control.
> > > > I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> > > > builder to add a Hyperlink column to dg.
> > > > I want to try to assign a column of URLs to this hyperlink column in
> > > > programming way (ie., dynamically assignment). However, I can not find a way
> > > > to continue doing it.
> > > >
> > > > Do you have ideas about it? Thanks.
> > > >
> > > > David

You can also look at following URL:

http://msdn.microsoft.com/library/de...tringtopic.asp

HTH

"david" wrote:

> thanks
>
> I will try it.
>
> David
>
> "Elton W" wrote:
>
> > You need bind datagrid with data source:
> >
> > dg.DataSource = dataSourceObject
> > dg.DataBind()
> >
> > And specify link column's binding field:
> >
> > Dim linkCol As HyperLinkColumn = CType(dg.Columns(link_index),
> > HyperLinkColumn )
> > linkCol.DataTextField = "URL_FIELD_NAME"
> >
> > Or in DataGrid_ItemDataBound event:
> >
> > using DataRowView object (e.Item.DataItem)
> >
> > Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
> > HyperLink link = CType(e.Item.Cells(link_Column_index).Controls(0), HyperLink)
> > link.NavigateUrl = drv("URL_FIELD_NAME").ToString
> >
> > HTH
> >
> >
> >
> >
> >
> >
> > "david" wrote:
> >
> > > Thank you.
> > >
> > > It is not completely clear to me. For example, I have a list of URLs, called
> > > URLs which is a column of a dataset, and I have a column of hyperlink column,
> > > link, in the datagrid, dg. Assume that these two columns have the same size.
> > > In the design view, I have left the URL box empty for the hyperlink column in
> > > the property builder.
> > >
> > > Now in the code behide, I try to fill in the URL box (property item) for
> > > each hyperlink column item after I got the list of URLs. Can I do the
> > > following:
> > >
> > > dg.Columns("link") = URLs
> > >
> > > Does it make sense?
> > >
> > > David
> > >
> > >
> > > "Elton W" wrote:
> > >
> > > > HI David,
> > > >
> > > > In DataGrid_ItemDataBound event:
> > > >
> > > > HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
> > > > link.NavigateUrl = getURL();
> > > >
> > > > HTH
> > > >
> > > > Elton Wang
> > > >
> > > >
> > > >
> > > > "david" wrote:
> > > >
> > > > > Hi, all:
> > > > > I need a help from you about DataGrid control.
> > > > > I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> > > > > builder to add a Hyperlink column to dg.
> > > > > I want to try to assign a column of URLs to this hyperlink column in
> > > > > programming way (ie., dynamically assignment). However, I can not find a way
> > > > > to continue doing it.
> > > > >
> > > > > Do you have ideas about it? Thanks.
> > > > >
> > > > > David

By the way, what does it mean by 0 in
HyperLink link = CType(e.Item.Cells(link_Column_index).Controls(0),
HyperLink) ?

Why use 0 in Control(0)? Can you explain this line of code?

Thanks

David

"Elton W" wrote:

> You can also look at following URL:
>
> http://msdn.microsoft.com/library/de...tringtopic.asp
>
> HTH
>
> "david" wrote:
>
> > thanks
> >
> > I will try it.
> >
> > David
> >
> > "Elton W" wrote:
> >
> > > You need bind datagrid with data source:
> > >
> > > dg.DataSource = dataSourceObject
> > > dg.DataBind()
> > >
> > > And specify link column's binding field:
> > >
> > > Dim linkCol As HyperLinkColumn = CType(dg.Columns(link_index),
> > > HyperLinkColumn )
> > > linkCol.DataTextField = "URL_FIELD_NAME"
> > >
> > > Or in DataGrid_ItemDataBound event:
> > >
> > > using DataRowView object (e.Item.DataItem)
> > >
> > > Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
> > > HyperLink link = CType(e.Item.Cells(link_Column_index).Controls(0), HyperLink)
> > > link.NavigateUrl = drv("URL_FIELD_NAME").ToString
> > >
> > > HTH
> > >
> > >
> > >
> > >
> > >
> > >
> > > "david" wrote:
> > >
> > > > Thank you.
> > > >
> > > > It is not completely clear to me. For example, I have a list of URLs, called
> > > > URLs which is a column of a dataset, and I have a column of hyperlink column,
> > > > link, in the datagrid, dg. Assume that these two columns have the same size.
> > > > In the design view, I have left the URL box empty for the hyperlink column in
> > > > the property builder.
> > > >
> > > > Now in the code behide, I try to fill in the URL box (property item) for
> > > > each hyperlink column item after I got the list of URLs. Can I do the
> > > > following:
> > > >
> > > > dg.Columns("link") = URLs
> > > >
> > > > Does it make sense?
> > > >
> > > > David
> > > >
> > > >
> > > > "Elton W" wrote:
> > > >
> > > > > HI David,
> > > > >
> > > > > In DataGrid_ItemDataBound event:
> > > > >
> > > > > HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
> > > > > link.NavigateUrl = getURL();
> > > > >
> > > > > HTH
> > > > >
> > > > > Elton Wang
> > > > >
> > > > >
> > > > >
> > > > > "david" wrote:
> > > > >
> > > > > > Hi, all:
> > > > > > I need a help from you about DataGrid control.
> > > > > > I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> > > > > > builder to add a Hyperlink column to dg.
> > > > > > I want to try to assign a column of URLs to this hyperlink column in
> > > > > > programming way (ie., dynamically assignment). However, I can not find a way
> > > > > > to continue doing it.
> > > > > >
> > > > > > Do you have ideas about it? Thanks.
> > > > > >
> > > > > > David

In a cell, there are one or more control(s), e.g. you can put a label and a
textbox or even just a white space (treated as Literal control).
Hence, cell.Controls(0) means first control, in your case Hyperlink control.


"david" wrote:

> Hi, all:
> I need a help from you about DataGrid control.
> I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> builder to add a Hyperlink column to dg.
> I want to try to assign a column of URLs to this hyperlink column in
> programming way (ie., dynamically assignment). However, I can not find a way
> to continue doing it.
>
> Do you have ideas about it? Thanks.
>
> David

Hi, Elton:

in your sample code,
Dim linkCol As HyperLinkColumn = CType(dg.Columns(link_index),
HyperLinkColumn )

The link_index means the column index such as 0, 1, and so on, is that right?

Thanks

David
"Elton W" wrote:

> You need bind datagrid with data source:
>
> dg.DataSource = dataSourceObject
> dg.DataBind()
>
> And specify link column's binding field:
>
> Dim linkCol As HyperLinkColumn = CType(dg.Columns(link_index),
> HyperLinkColumn )
> linkCol.DataTextField = "URL_FIELD_NAME"
>
> Or in DataGrid_ItemDataBound event:
>
> using DataRowView object (e.Item.DataItem)
>
> Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
> HyperLink link = CType(e.Item.Cells(link_Column_index).Controls(0), HyperLink)
> link.NavigateUrl = drv("URL_FIELD_NAME").ToString
>
> HTH
>
>
>
>
>
>
> "david" wrote:
>
> > Thank you.
> >
> > It is not completely clear to me. For example, I have a list of URLs, called
> > URLs which is a column of a dataset, and I have a column of hyperlink column,
> > link, in the datagrid, dg. Assume that these two columns have the same size.
> > In the design view, I have left the URL box empty for the hyperlink column in
> > the property builder.
> >
> > Now in the code behide, I try to fill in the URL box (property item) for
> > each hyperlink column item after I got the list of URLs. Can I do the
> > following:
> >
> > dg.Columns("link") = URLs
> >
> > Does it make sense?
> >
> > David
> >
> >
> > "Elton W" wrote:
> >
> > > HI David,
> > >
> > > In DataGrid_ItemDataBound event:
> > >
> > > HyperLink link = (HyperLink)e.Item.Cells[link_Column_index].Controls[0];
> > > link.NavigateUrl = getURL();
> > >
> > > HTH
> > >
> > > Elton Wang
> > >
> > >
> > >
> > > "david" wrote:
> > >
> > > > Hi, all:
> > > > I need a help from you about DataGrid control.
> > > > I created a DataGrid, dg, in design view of .NET visual Stadio and use the
> > > > builder to add a Hyperlink column to dg.
> > > > I want to try to assign a column of URLs to this hyperlink column in
> > > > programming way (ie., dynamically assignment). However, I can not find a way
> > > > to continue doing it.
> > > >
> > > > Do you have ideas about it? Thanks.
> > > >
> > > > David