Hyperlink template column and change link text based on Condition

[Paul D. Fox]

How do I create a Hyperlink column in a Datagrid which launches a pop-up window, and have the text in the hyperlink change based on a condition? I'm trying to do something like the following:

<asp:TemplateColumn HeaderText="Status">
<ItemTemplate>
<a href="Javascript://" onClick="_openApproval(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);" >
<asp:HyperLink ID="lnkApproval"></asp:HyperLink>
</a>
</ItemTemplate>
</asp:TemplateColumn>

And I suppose I code something in the ItemDataBound to change the Hyperlink's Text? But How?

Paul

 

[Kim Quigley]

Paul,

There are a number of ways you can accomplish what you are asking, but the best solution depends on what part of the link you're trying to change and what the conditions are. If your onClick code isn't going to change and you only want to modify the link text, then this is what I recommend putting in the ItemDataBound method:

If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
If something then
CType(e.Item.Cells(YourColumnID).FindControl("LinkLabel"), Label).Text = 'something
End If
End If

Your column would need to look like this

<asp:TemplateColumn>
<ItemTemplate>
<a href="Javascript://" onClick='alert(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);'><asp:Label id=LinkLabel runat="server" text="Unchanged Text"></asp:Label></a>
</ItemTemplate>
</asp:TemplateColumn>

How do I create a Hyperlink column in a Datagrid which launches a pop-up window, and have the text in the hyperlink change based on a condition? I'm trying to do something like the following:

<asp:TemplateColumn HeaderText="Status">
<ItemTemplate>
<a href="Javascript://" onClick="_openApproval(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);" >
<asp:HyperLink ID="lnkApproval"></asp:HyperLink>
</a>
</ItemTemplate>
</asp:TemplateColumn>

And I suppose I code something in the ItemDataBound to change the Hyperlink's Text? But How?

Paul

 

[Paul D. Fox]

Thanks Kim, that was a big help however, I had to resort to:
"If e.Item.ItemType <> ListItemType.Header And e.Item.ItemType <> ListItemType.Footer Then"

In order for it to properly execute. I don't understand why your IF statement failed.

Paul
Paul,

There are a number of ways you can accomplish what you are asking, but the best solution depends on what part of the link you're trying to change and what the conditions are. If your onClick code isn't going to change and you only want to modify the link text, then this is what I recommend putting in the ItemDataBound method:

If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
If something then
CType(e.Item.Cells(YourColumnID).FindControl("LinkLabel"), Label).Text = 'something
End If
End If

Your column would need to look like this

<asp:TemplateColumn>
<ItemTemplate>
<a href="Javascript://" onClick='alert(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);'><asp:Label id=LinkLabel runat="server" text="Unchanged Text"></asp:Label></a>
</ItemTemplate>
</asp:TemplateColumn>

How do I create a Hyperlink column in a Datagrid which launches a pop-up window, and have the text in the hyperlink change based on a condition? I'm trying to do something like the following:

<asp:TemplateColumn HeaderText="Status">
<ItemTemplate>
<a href="Javascript://" onClick="_openApproval(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);" >
<asp:HyperLink ID="lnkApproval"></asp:HyperLink>
</a>
</ItemTemplate>
</asp:TemplateColumn>

And I suppose I code something in the ItemDataBound to change the Hyperlink's Text? But How?

Paul

 

[Kim Quigley]

I'm glad you were able to figure it out
Thanks Kim, that was a big help however, I had to resort to:
"If e.Item.ItemType <> ListItemType.Header And e.Item.ItemType <> ListItemType.Footer Then"

In order for it to properly execute. I don't understand why your IF statement failed.

Paul
Paul,

There are a number of ways you can accomplish what you are asking, but the best solution depends on what part of the link you're trying to change and what the conditions are. If your onClick code isn't going to change and you only want to modify the link text, then this is what I recommend putting in the ItemDataBound method:

If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
If something then
CType(e.Item.Cells(YourColumnID).FindControl("LinkLabel"), Label).Text = 'something
End If
End If

Your column would need to look like this

<asp:TemplateColumn>
<ItemTemplate>
<a href="Javascript://" onClick='alert(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);'><asp:Label id=LinkLabel runat="server" text="Unchanged Text"></asp:Label></a>
</ItemTemplate>
</asp:TemplateColumn>

How do I create a Hyperlink column in a Datagrid which launches a pop-up window, and have the text in the hyperlink change based on a condition? I'm trying to do something like the following:

<asp:TemplateColumn HeaderText="Status">
<ItemTemplate>
<a href="Javascript://" onClick="_openApproval(<%# DataBinder.Eval(Container, "DataItem.Training_Schedule_ID") %>);" >
<asp:HyperLink ID="lnkApproval"></asp:HyperLink>
</a>
</ItemTemplate>
</asp:TemplateColumn>

And I suppose I code something in the ItemDataBound to change the Hyperlink's Text? But How?

Paul