How do I turn off AddNew

[Declan]

Under certain circumstances I may wish to remove the ability for a user to add a new item to the grid.

e.g.

User adds clicks:
            <CommandItemSettings
                  AddNewRecordText="Click here to add new item"

After clicking save\update and certain conditions are met I wish to block the user from being able to add any more items. Ideally I would like to set AddNewRecordText = ""
AddNewRecordImageUrl = "spacer.gif" to hide it

Is there a property I can set to say AddNew.Enabled = false or something similar.

This is a hierarchical grid and I do not wish to prevent the user from continuing to add items to the detail grid. Only the Master should be disabled.

[Daniel]

Hello Declan,

You can try the following:

RadGrid1.MasterTableView.DetailTables[0].CommandItemDisplay = GridCommandItemDisplay.None;

Alternatively you can try to handle ItemCommand and cancel the event (setting e.Canceled = true) when your conditions are met.

Kind regards,
Daniel
the Telerik team

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[Princy]

Hello Declan,

You can check for the CommandName in the ItemCommand event and check for the conditions and then disable the AddNewRecord button as shown in the code below.
cs:

 protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
    {
        if (e.CommandName == "Save")
        {
           //check if conditions are met
            foreach (GridCommandItem cmditm in RadGrid1.MasterTableView.GetItems(GridItemType.CommandItem))
            {
                Button btn1 = (Button)cmditm.FindControl("AddNewRecordButton");
                btn1.Enable = false;
                LinkButton lnkbtn1 = (LinkButton)cmditm.FindControl("InitInsertButton");
                lnkbtn1.Enable = false;
            }
        }
    }

Princy.

[Declan]

Thanks Princy you put me in the right direction. I found that I had to use the PreRender event:

Private Sub radDeedsGrid_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles radDeedsGrid.PreRender

    log.Debug("PreRender: " & PropertyCount.ToString)

    For Each cmditm As GridCommandItem In radDeedsGrid.MasterTableView.GetItems(GridItemType.CommandItem)
        Dim lnkbtn1 As LinkButton = DirectCast(cmditm.FindControl("InitInsertButton"), LinkButton)
        If InStr(lnkbtn1.Text, "Click here to add a property") > 0 Then
            If PropertyCount > 0 Then

                lnkbtn1.Enabled = False
                lnkbtn1.Visible = False

            End If
        End If
    Next

End Sub

[Softec]

How can I achieve this on DetailTables?

this.MasterTableView.DetailTables[0].GetItems(GridItemType.CommandItem) always returns 0 Items on a DetailTableView.

Thanks beforehand!

[Princy]

Hello Studach Joerg,

You can use the Name property of the detail table to achieve the same scenario. Try out the following code:
aspx:

 <telerik:RadGrid ID="RadGrid1" DataSourceID="SqlDataSource1" runat="server" OnItemDataBound="RadGrid1_ItemDataBound" >
        <MasterTableView Name="Master" DataSourceID="SqlDataSource1" >
        <DetailTables>
        <telerik:GridTableView Name="Detail" DataSourceID="SqlDataSource2" CommandItemDisplay="Top" runat="server">

c#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if (e.Item.OwnerTableView.Name == "Detail")
        {
            foreach (GridCommandItem cmditm in e.Item.OwnerTableView.GetItems(GridItemType.CommandItem))
            {
                Button btn1 = (Button)cmditm.FindControl("AddNewRecordButton");
                btn1.Enabled = false;
                LinkButton lnkbtn1 = (LinkButton)cmditm.FindControl("InitInsertButton");
                lnkbtn1.Enabled = false;
            }
        }
    }

Thanks
Princy.

[Softec]

I tried to achieve this on PreRender, when I moved my code to ItemDataBound it works. Thx for your input!

[Daniel Elliott]

The last post Princy made is exactly what I need, but I need it to be conditionally disabled only when there are records PRESENT. How do I check for no records found?

[Dimo]

Hello Daniel,

You can check

RadGrid_Instance.MasterTableView.Items.Count

in PreRender and if it is zero, then you have no DataItems.

Sincerely yours,
Dimo
the Telerik team

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[Daniel Elliott]

Thanks for your help,

How do I find out if a DetailsTable's Count is zero?

[Dimo]

Hello Daniel,

The following help article should give you a clue:

http://www.telerik.com/help/aspnet-ajax/grdhideexpandcollapseimageswhennorecords.html

Greetings,
Dimo
the Telerik team

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