[Solved] readonly property for radgrid column

[Ying]

I have a GridTemplateColumn for a radDatePicker,a GridHTMLEditorColumn, and a GridButtonColumn in my grid (see code below).  I need to make these columns show up in edit mode but invisible when doing insert. What kind of object I should cast them to in the _ItemCommand event so that I can set the readonly property?

<telerik:GridTemplateColumn HeaderText="Warrant Date" UniqueName="WarrantDate"

Visible="False" DataType="System.DateTime">

<EditItemTemplate>

<telerik:RadDatePicker ID="RadDatePicker1" runat="server" Skin="Office2007" allowEmpty="true"

Culture="English (United States)" DbSelectedDate='<%# Eval("WarrantDate") %>' >

<DateInput ID="DateInput1" LabelCssClass="radLabelCss_Office2007" Skin="Office2007"

runat="server">

</DateInput>

<Calendar ID="Calendar1" Skin="Office2007" UseColumnHeadersAsSelectors="False" runat="server"

UseRowHeadersAsSelectors="False" ViewSelectorText="x" ShowRowHeaders="false">

</Calendar>

<DatePopupButton />

</telerik:RadDatePicker>

</EditItemTemplate>

</telerik:GridTemplateColumn>  <telerik:GridButtonColumn ButtonType="PushButton" CommandName="ReOpenWarrant" ShowInEditForm="True"      Text="Re-Open Warrant" UniqueName="ReOpenWarrant" Visible="False" HeaderText="">       <ItemStyle ForeColor="White" />  </telerik:GridButtonColumn>

<telerik:GridHTMLEditorColumn UniqueName="Charge" HeaderText="Charge" DataField="Charge">

</telerik:GridHTMLEditorColumn>

Thank you!
Ying

[Shinu]

Hi Ying,

I hope you are trying to hide the column in the InsertForm and show it in the edit form. If so you may try out the following code snippet to achieve the desired scenario.

CS:

protected void RadGrid2_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if ((e.Item is GridEditFormInsertItem) && (e.Item.OwnerTableView.IsItemInserted))
        {
            GridEditFormInsertItem insertItem=(GridEditFormInsertItem)e.Item;
            insertItem["WarrantDate"].Parent.Visible = false;
            insertItem["ReOpenWarrant"].Parent.Visible = false;
            insertItem["Charge"].Parent.Visible = false;

        }
   }

Regards
Shinu.

[Ying]

Shinu,

 

Thank you for your reply. I tried your code but the code never get executed. I have noticed that the following code will hide 'Charge' in both 'Insert' and 'Edit' mode. If only there is a way to know the mode, then I can do it properly.

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{

    //make Charge and ReOpenWarrant invisible for edit
    if (e.Item is GridEditableItem && e.Item.IsInEditMode)
    {
        GridEditableItem editItem = (GridEditableItem)e.Item;
        editItem["Charge"].Parent.Visible = false;
        editItem["ReOpenWarrant"].Parent.Visible = false;
    }
}

Another suggestions?

[Ying]

I was able to find the Mode in _itemCommand event and save it in a private variable to pass to _ItemDataBound. Just wondering if there is some better way to do so.

[Princy]

Hello Ying,

I am not sure as to what EditMode(InPlace/EditForms/PopUp) are you setting for the mastertableview but to check for the mode in ItemDataBound, you can try out the following code:
c#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
       if (e.Item is GridEditableItem && e.Item.IsInEditMode)// will fire for both edit and insert modes when EditMode="EditForms"
        {
          ......
        }

        //Replace GridEditableItem with GridDataInsertItem for EditMode="InPlace"
       if (e.Item is GridEditableItem &&  e.Item.OwnerTableView.IsItemInserted)// will fire only for insert mode when EditMode="EditForms"
        {
            .....
        }
     }

Hope this makes sense..
-Princy.

[Ying]

Hello Princy,

Thank you so much! Your code is very helpful. Two additional questions:
1. what is the condition for 'fire only for edit when EditMode=EditForms'?
2. Is the condition the same for 'fire for both edit and insert' with EditMode=EditForms vs EditMode=InPlace?

Ying

[Daniel]

Hello Ying,

I hope the following information will be helpful to you.

	Edit mode	Insert mode	Browse mode
InPlace	GridDataItem	GridDataInsertItem	GridDataItem
EditForm	GridEditFormItem	GridEditFormInsertItem	GridDataItem

- e.Item is GridEditableItem is true in all modes, no matter whether the EditMode is InPlace or EditForms.
- e.Item.IsInEditMode is used to distinguish whether the item is in edit/insert mode (in all cases)
- e.Item.OwnerTableView.IsItemInserted applies to the tableview and not to specific item

Let us know if you need further details.

Best regards,
Daniel
the Telerik team

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[Ying]

Thank you Daniel,

Your information is very helpful. As Princy indicated in his post
1.  if (e.Item is GridEditableItem && e.Item.IsInEditMode) // will fire for both edit and insert 

2.   if (e.Item is GridEditableItem &&  e.Item.OwnerTableView.IsItemInserted)// will fire only for insert 

Is there an explict condition for 'will fire only for edit' ? Or I can safely use 1 but not 2 for this condition?

[Daniel]

Hello Ying,

Depending on the EditMode you could use different approach:

Please note that you could use a single IF operator - I separated the conditions for better readability.

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item.IsInEditMode)  //this covers edit and insert
    {
        if (!(e.Item is GridEditFormInsertItem)) //not in insert mode (EditMode="EditForms")
        {
            //do something
        }
    }
}

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item.IsInEditMode)  //this covers edit and insert
    {
        if (!(e.Item is GridDataInsertItem)) //not in insert mode (EditMode="InPlace")
        {
            //do something
        }
    }
}

Regarding your question:
"e.Item is GridEditableItem &&  e.Item.OwnerTableView.IsItemInserted"

The unwanted effect with this condition is that it will be executed N times if the OwnerTableView (MasterTableView for example) is in Insert mode. In other words - e.Item is GridEditableItem is true for every data item in RadGrid.

Regards,
Daniel
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.

[Ying]

Thank you so much Daniel,

I think you covered everything for me :)