[FIXED] [V0.7] LoadPostData() results in NullReferenceException

[disbell]

<p class="MsoNormal"></p><p class="MsoNormal"></p><p class="MsoNormal">Hello All,</p>

<p class="MsoNormal">Today I ran into a strange issue with Coolite form elements
that I would like to share with the community. </p>

<p class="MsoNormal">Long story short, we have a custom server control that
initiates ICallback requests on various client side events. When we mixed
Coolite in all of a sudden the ICallback requests started throwing null reference
errors. Bellow is an example stack trace.</p>

[NullReferenceException: Object reference not set to an instance of an object.]
   Coolite.Ext.Web.Hidden.set_Value(Object value) +73
   Coolite.Ext.Web.Hidden.LoadPostData(String postDataKey, NameValueCollection postCollection) +160
   Coolite.Ext.Web.Field.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +11
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +661
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1194
 
As it would turn out, the ICallback request was not posting all of the form elements Coolite was expecting. Three different form elements chocked on  null value posts. After a few minor tweeks to the following pieces of code the ICallback requests resumed working.
public virtual string Text
{
    get
    {
        return (string)this.ViewState["Text"] ?? "";
    }
    set
    {
        this.ViewState["Text"] = value;
    }
}
NumberField.cs
protected override bool LoadPostData(string postDataKey, NameValueCollection postCollection)
{
    string val = postCollection[this.UniqueName];
   
    if (!this.ReadOnly && !this.Text.Equals(val))
    {
        try
        {
            this.ViewState.Suspend();
            this.Text = val != null && val.Equals(this.EmptyText) ? "" : val;
        }
        finally
        {
            this.ViewState.Resume();
        }
        return true;
    }
    return false;
}
Hidden.cs
public override object Value
{
    get
    {
        return (string)this.ViewState["Value"] ?? "";
    }
    set
    {
        this.ViewState["Value"] = value != null ? value.ToString() : null;
    }
}

<p class="MsoNormal">Cheers!</p>

</p>

</p>

</p>

[geoffrey.mcgill]

Hi disbell,

Thanks for pointing out the NullReference issue.

We have gone through the controls and corrected the problem.

This fix will be available with the v0.7 release.