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WebSchedule

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Month calendar icon

DR posted over 11 years ago

I use WebDatePicker whith webmonthCalendar.

To open the calendar, I have to use the blue arrow.

Is it possible, instead to use a button with an image of calendar on the right of the control, like

most websites use.

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49378

[Infragistics] Petar Ivanov posted over 11 years ago

Hello drpoalim,

Thank you for posting in the community.

You can configure a custom button to be used with WebDatePicker in this scenario, as described at:

http://help.infragistics.com/Help/NetAdvantage/ASPNET/2012.1/CLR4.0/html/WebDatePicker_Using_Custom_Button_in_WebDatePicker.html

Note that the custom button can also be styled with an image via theImageUrlproperty, if necessary.

Please let me know if this helps.
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Offline DR posted over 11 years ago in reply to [Infragistics] Petar Ivanov

I add an image.

I get exception on postback:

This is the code I am writing:

using System;

using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace OptionPricer
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
WebDatePicker1.Buttons.CustomButton.ImageUrl = "~/images/Schedule.gif";
}
}
}

<html xmlns=" http://www.w3.org/1999/xhtml ">
<head runat="server">
<script type="text/javascript" src="jquery-1.7.1.js"></script>
<script type="text/javascript" src="DatePickerJs.js"></script>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<ig:WebDatePicker ID="WebDatePicker1" runat="server">
</ig:WebDatePicker>
</div>
<asp:Button ID="Button1" runat="server" Text="Button" />
</form>
</body>
</html>

First time, the page loads.

I press the button, and get Exception:

Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
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49378

[Infragistics] Petar Ivanov posted over 11 years ago in reply to DR

Hello drpoalim,

Thank you for your reply.

Setting the ImageUrl dynamically from the code behind should be done at the PreInit stage (Init stage if a master page is used) in order to ensure that the control's viewstate is properly reloaded:


    protected override void OnPreInit(EventArgs e)     {         
            base.OnPreInit(e);         
            WebDatePicker2.Buttons.CustomButton.ImageUrl = "ig_res/Default/images/igmc_headerbg.png";     
    }

Hope this helps.

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Offline DR posted over 11 years ago in reply to [Infragistics] Petar Ivanov

Thanks.

Is it possible to do it on any of the control's events?

I want to create my own inherited control from your control.
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49378

[Infragistics] Petar Ivanov posted over 11 years ago in reply to DR

Hello drpoalim,

Please feel free to contact me if any additional questions regarding this scenario arise.
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Offline DR posted over 11 years ago in reply to [Infragistics] Petar Ivanov

Great!

Thanks.
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Verified Answer
[Infragistics] Petar Ivanov posted over 11 years ago in reply to DR

Hello drpoalim,

It should be possible to use the control's Init event for this task.

Please let me know if this helps.
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