Hi Tamil,
Thank you for contacting Syncfusion support.
The Classic control needs the handlers to be added
in the Web.config file to render controls like Captcha, UploadBox, etc., So we
suggest you to add Handler in <httpHandlers> section of
<system.web>. When the application is run directly from developer
environment, it’s enough the handler are added in <httpHandlers > section
of “system.web” tag but while deploying it from IIS server you will need
to add the handler in <handlers> section of “system.webServer” tag also.
Also there may be issue on registration of httphandlers sections in IIS
while using Integrated pipeline mode. So we suggest you to set the validation
element’s validateIntegratedModeConfiguration attribute to false
in order to avoid errors. If still the issue persists, could you please share
the defect sample or screenshots? So that we could provide you a better
solution. Please refer the following code snippet.
<code>
[webconfig]
<system.web>
<httpHandlers>
<add verb="*" path="syncfusion_image_generate.ashx" type="Syncfusion.Web.UI.WebControls.Shared.ImageRenderHandler,Syncfusion.Shared.Web,
Version=10.304.0.43, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89"/>
<add path="Syncfusion.Web.UI.WebControls.Tools.SpellCheckerHandler.axd" verb="*" type="Syncfusion.Web.UI.WebControls.Tools.SpellCheckHandler,
Syncfusion.Tools.Web, Version= 10.304.0.43, Culture=neutral,
PublicKeyToken=3d67ed1f87d44c89" validate="false"/>
<add path="Captcha.axd" verb="*" type="Syncfusion.Web.UI.WebControls.Tools.CaptchaControl.ImageCaptchaHandler,Syncfusion.Tools.Web,
Version= 10.304.0.43, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89"/>
</httpHandlers>
<httpModules>
<add name="UploadModule" type="Syncfusion.Web.UI.WebControls.Tools.UploadControl.UploadModule,
Syncfusion.Tools.Web, Version= 10.304.0.43, Culture=neutral,
PublicKeyToken=3d67ed1f87d44c89"/>
</httpModules>
</system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<add name="UploadModule" type="Syncfusion.Web.UI.WebControls.Tools.UploadControl.UploadModule,
Syncfusion.Tools.Web, Version= 10.304.0.43, Culture=neutral,
PublicKeyToken=3d67ed1f87d44c89"/>
</modules>
<handlers>
<add name="Captcha" path="Captcha.axd" verb="*" type="Syncfusion.Web.UI.WebControls.Tools.CaptchaControl.ImageCaptchaHandler,Syncfusion.Tools.Web,
Version= 10.304.0.43, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89"/>
</handlers>
</system.webServer>
</code>
Please let us know if you have any other queries.
Regards,
Ezhil S
