Questions on UI for ASP.NET AJAX Forum

4 answers

195 views

Handling events fired from dynamically created NodeTemplate

Hi,

I am adding Node Templates like;

protected void RadTreeView2_TemplateNeeded(object sender, RadTreeNodeEventArgs e)

{

bool someCondition = true;

if (someCondition)

e.Node.NodeTemplate = new BoxTemplate();

else

e.Node.NodeTemplate = new OtherTemplate();

}

And here is my BoxTemplate class;

class BoxTemplate : ITemplate

{

public void InstantiateIn(Control container)

{

Label nodeLabel = new Label();

nodeLabel.ID = "NodeLabel";

nodeLabel.DataBinding += new EventHandler(NodeLabel_DataBinding);

container.Controls.Add(nodeLabel);

ImageButton delButton = new ImageButton();

delButton.ImageUrl = "~/images/icons/delete16.png";

delButton.OnClientClick = "return ConfirmDelete();";

container.Controls.Add(delButton);

}

private void NodeLabel_DataBinding(object sender, EventArgs e)

{

Label theLabel= (Label)sender;

RadTreeNode node = (RadTreeNode)theLabel.BindingContainer;

theLabel.Text = (string)DataBinder.Eval(node, "Text");

}

I couldn't figure it out how to add server side click event to my delButton and handle it at code behind.
Any help would be appreciated. TIA.

TreeView

answered on 10 May 2012

1 answer

222 views

Persistence of configuration after postback

Dear all

I wonder if somebody could help clarify something about the persistence behaviour I should be expecting from the RadTreeView's EnableViewState property? I am not sure if I am seeing the behaviour by design or not ...

I have a RadTreeView control which does not appear to maintain its node display arrangement after a postback, in that if the user expands a node, after postback the node has been collapsed once more. Also, when it comes to the underlying datasource bindings etc of the RadTreeView control, it seems as though the control does not persist the Datasource property, for example, that is configured when the control first loads on the initial post of the page. For example, the RadTreeView in question binds to a hierarchical datasource object, but I am having to reconfigure the RadTreeView to a datasource object after each postback, which seems a little counter-intuitive, and a bit of an inefficiency that I would expect the RadTreeView control to avoid by maintaining the state of the datasource object. Perhaps the data configuration and hierarchy display changes would need to be made manually with a Session object instead?

However, I would be interested to know if this is the correct way to go about this issue, or whether I am missing something of importance.

Thanks very much for any advise!

Regards

TreeView

answered on 10 May 2012

5 answers

326 views

RadGrid issue: after postback, contents of datetime column are being cleared onFocus

Hello,

There is a very similar problem with <GridDateTimeColumn>, as this message: http://www.telerik.com/community/forums/reply-thread.aspx?messageId=2088875&threadId=530174 .

However, this problem still happens after the Telerik.Web.UI_2012_1_424_Dev release build.

My problem:

I have a grid with EditForm edit mode enabled.

When I select an editable field that fires a OnTextChanged post back event, if I give focus to an editable <GridDateTimeColumn> field, I get a problem.

Prior to this hotfix, I would get an error the same error: "Text property cannot be set. String was not recognized as a valid DateTime."

After this hotfix, what happend is when I focus an editable <GridDateTimeColumn> field, the contents of the field disappear. Actually, the contents appear to first be selected, then they disappear. Focusing on other types of columns does not do this.

Normal behavior (and expected), as when tabbing from field to field without this post back event, the items are selected. But the selection is not removed.

Here are the two date/time column definitions in my grid, demonstrating the problem:

<telerik:GridDateTimeColumn DataField="ValidFromDate"

FilterControlAltText="Filter ValidFromDate column" HeaderText="Valid From"

UniqueName="ValidFromDate" DataFormatString="{0:MM/dd/yyyy}"

MinDate="1901-01-01" MaxDate="9999-12-31 23:59:59.999999">

</telerik:GridDateTimeColumn>

<telerik:GridDateTimeColumn DataField="ValidToDate"

FilterControlAltText="Filter ValidToDate column" HeaderText="Valid To"

UniqueName="ValidToDate" DataFormatString="{0:MM/dd/yyyy}"

MinDate="1901-01-01" MaxDate="9999-12-31 23:59:59.999999">

</telerik:GridDateTimeColumn>

Here is the column that fires the OnTextChanged event while in Edit-Mode (see <EditItemTemplate>):

<telerik:GridTemplateColumn HeaderText="Override Discount $" UniqueName="OverrideDiscount">

<ItemTemplate>

<telerik:RadNumericTextBox NumberFormat-DecimalDigits="2"

ID="txtOverrideDiscountDsp" runat="server"

gmNumberFormat-AllowRounding="False" Type="Currency" Width="52px"

BackColor="Transparent" BorderStyle="None"

Value='<%#CoalesceNumericValuesToRadNumberControl(DataBinder.Eval(Container.DataItem, "UpdateCustomerPrice"), null) %>'>

</telerik:RadNumericTextBox>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadNumericTextBox NumberFormat-DecimalDigits="2" ID="txtOverrideDiscount" runat="server"

AutoPostBack="true" OnTextChanged="txtOverrideDiscount_OnTextChanged"

gmNumberFormat-AllowRounding="False" Type="Currency"

Value='<%#CoalesceNumericValuesToRadNumberControl(DataBinder.Eval(Container.DataItem, "CustomerPrice"), null) %>'>

</telerik:RadNumericTextBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

Thanks

saxan.sartar (at) gmail (dot) com

Grid

answered on 10 May 2012

2 answers

285 views

Radgrid: show/hide command item using IsitemInserted

Hello,

It's urgent.
Am using vb.net 2010.
I have master table view and detail table view with command items at top.
In master table view i can hide link button using
1. for Add new link button: Visible='<%# Not rgView1.MasterTableView.IsItemInserted %>'
2. for Cancel button: Visible='<%# rgView1.EditIndexes.Count > 0 Or rgView1.MasterTableView.IsItemInserted %>
How to achieve the above two in detail table?
I tried using Visible='<%# Not(Container AS GridItem).OwnerTableView.IsItemInserted %>'
But it throws error as Operator Not is not defined for type GridItem.

Please guide me
Thank you
Jayanthi

Grid

answered on 10 May 2012

1 answer

116 views

[Solved] Show +/- sign in NumericTextBox

How to show signs for numbers in the RadNumericTextbox .Like setting +/- for numbers?

General Discussions

answered on 10 May 2012

1 answer

94 views

[Solved] Selected value from client side

How to pass the cell value that is selected in a grid to a textbox in templatcolumn?

General Discussions

answered on 10 May 2012

0 answers

86 views

Rad Grid problems after deploying

I have a Rad Grid control on a form! and it works totally fine on localhost. But when i deploy project on server the grid hyperlinks did'nt work!

it did'nt open any pop up window but on localhost it works fine! and this issue is in soo many pages!

Can anyone help me! what i am doing wrong in deploying!

Grid

asked on 10 May 2012

4 answers

225 views

[Solved] default crop to unconstrained proportions

Hello,

How can I change the default setting of the Crop tool from Constrained Proportions to Unconstrained Proportions.

I see many threads about defining the size, ratio and disabling buttons for easy thumbnail creation, but I just need to change the default to Unconstrained.

ImageEditor

answered on 09 May 2012

1 answer

185 views

item template in dynamic columns

I have a dynamic columns and dynamic rows which am binding in rad grid
ex:-

name col1 col 2 col3 col4 TOtal
a -----1------4-----5-----7 --------- 45
b ------1------4-----5-----7  --------- 45
c ------1------4-----5-----7  --------- 45
tota--16-----64---65----67  ----------100

now i want to insert item template in all this values so that user can enter numeric fields .. also i want regular expressions
i dont have any name of columns since user can edit column names also ... also TOTAL
please tell me how can i do this

Grid

answered on 09 May 2012

1 answer

234 views

GridHyperLinkColumn to Download File

i am trying to use GridHyperLinkColumn to be able to download file, everything works perfect except downloading the file.
the link appears successfully but when clicking on it nothing happens.

<telerik:GridHyperLinkColumn HeaderText="File" UniqueName="FILE" DataTextField="Original_FileName" Target="_blank" DataNavigateUrlFields="Physical_FileName"></telerik:GridHyperLinkColumn>

I am using the following structure:

RadAjaxManager in the MasterPage
RadAjaxManagerProxy in the ContentPage wich host the RadGrid which is inside RadAjaxPanel

Grid

answered on 09 May 2012