You cannot hide all the tag forTinyMCE Editor. But you can get only image tag content onces you are saving the content.
Refer the below sample code for your reference.
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>TinyMCE ASP.Net Example</title>
<script type="text/javascript" src="tinymce/jscripts/tiny_mce/tiny_mce.js"></script>
<script type="text/javascript">
tinyMCE.init({
mode: "textareas",
theme: "advanced",
plugins: "safari,spellchecker,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,imagemanager,filemanager",
theme_advanced_buttons2: "image",
theme_advanced_toolbar_location: "top",
theme_advanced_toolbar_align: "left",
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="RichTextBox" runat="server" TextMode="MultiLine"></asp:TextBox>
<asp:Button ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click" />
<asp:Label ID="lblDisplay" runat="server" Text=""></asp:Label>
</div>
</form>
</body>
</html>
C#
protected void btnSave_Click(object sender, EventArgs e)
{
lblDisplay.Visible = true;
RichTextBox.Visible = false;
List<string> imagestring = GetImagesInHTMLString(RichTextBox.Text);
foreach (string imagetag in imagestring)
{
lblDisplay.Text += imagetag + "<br/>";
}
}
private List<string> GetImagesInHTMLString(string htmlString)
{
List<string> images = new List<string>();
string pattern = @"<(img)\b[^>]*>";
Regex rgx = new Regex(pattern, RegexOptions.IgnoreCase);
MatchCollection matches = rgx.Matches(htmlString);
for (int i = 0, i< matches.Count;i++)
{
images.Add(matches[i].Value);
}
return images;
}
VB.Net
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs)
lblDisplay.Visible = True
RichTextBox.Visible = False
Dim imagestring As List(Of String) = GetImagesInHTMLString(RichTextBox.Text)
For Each imagetag As String In imagestring
lblDisplay.Text += imagetag & "<br/>"
Next
End Sub
Private Function GetImagesInHTMLString(ByVal htmlString As String) As List(Of String)
Dim images As List(Of String) = New List(Of String)()
Dim pattern As String = "<(img)\b[^>]*>"
Dim rgx As Regex = New Regex(pattern, RegexOptions.IgnoreCase)
Dim matches As MatchCollection = rgx.Matches(htmlString)
Dim i As Integer = 0
Do While (i < matches.Count)
images.Add(matches(i).Value)
i = (i + 1)
Loop
Return images
End Function
Screenshot
