JSON<\/a>) string in a hidden field, which we can intercept and parse to acquire the ExpandedWidth property (or whatever other property you want to find). Here’s the code to save and load pane state for a RadPane in a RadSplitter:<\/p>\n<\/p>\n\/\/\/ <summary>
\/\/\/ Regular expression used to parse JSON object info comming back from the Telerik splitter control. Telerik did not expose
\/\/\/ the expandedWidth property (which stores the width of the pane when it is collapsed) so you have to acquire it using a workaround
\/\/\/ <\/summary>
private static Regex SplitterRegex = new System.Text.RegularExpressions.Regex(“(?:”collapsed”:(?<collapsed>[^,\\}]*))(?:.*)(?:”expandedSize”:(?<expandedSize>[^,\\}]*))”, RegexOptions.IgnoreCase);<\/p>\n
\/\/\/ <summary>
\/\/\/ Saves splitter settings to the setting cookie
\/\/\/ <\/summary>
private void SaveSplitterSettings()
{
if (splitter != null)
{
string splitterStateString = Page.Request.Form[paneLeft.ClientID];
if(!string.IsNullOrEmpty(splitterStateString))
{
Match match = SplitterRegex.Match(splitterStateString);
if (match.Success)
{
try
{
bool collapsed = bool.Parse(match.Groups[1].Value);
string width;
if (collapsed)
{
width = match.Groups[2].Value + “px”;
}
else
{
width = paneLeft.Width.ToString();
}
HttpCookie settingCookie = new HttpCookie(“iswSplitterSettings”);
settingCookie.Values.Add(“LW”, width);
settingCookie.Values.Add(“LS”, collapsed ? “1” : “0”);
Page.Response.Cookies.Add(settingCookie);
}
catch
{
\/\/Do nothing
}
}
}
}
}<\/p>\n
\/\/\/ <summary>
\/\/\/ Loads splitter settings from the setting cookie
\/\/\/ <\/summary>
private void LoadSplitterSettings()
{
HttpCookie settingCookie = Page.Request.Cookies[“iswSplitterSettings”];
if (settingCookie != null)
{
try
{
paneLeft.Width = new Unit(settingCookie.Values[“LW”].ToString());
paneLeft.InitiallyCollapsed = (bool)(settingCookie.Values[“LS”] == “1”);
}
catch
{
\/\/Do nothing – allow the control to sort itself out
}
}
}<\/p>\n","protected":false},"excerpt":{"rendered":"
Telerik makes UI controls for ASP.NET (and they are getting in Windows Forms controls too apparently) and they’ve done a great job. But, everything has it’s little quirks. I was working with the RadSplitter, a control that allows you to make collapsable \/ resizable panels on your webpage, when I ran across a little problem: persisting the……<\/p>\n","protected":false},"author":46738,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"coauthors":[],"class_list":["post-2425","post","type-post","status-publish","format-standard","hentry","category-blogs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts\/2425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/users\/46738"}],"replies":[{"embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/comments?post=2425"}],"version-history":[{"count":2,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts\/2425\/revisions"}],"predecessor-version":[{"id":41472,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts\/2425\/revisions\/41472"}],"wp:attachment":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/media?parent=2425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/categories?post=2425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/tags?post=2425"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/coauthors?post=2425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}