I am using Telerik RadControls. I have radGrid in which i have upload control for inserting images. But error is thrown when I try to upload any file.

Object must implement IConvertible.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidCastException: Object must implement IConvertible.

Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[InvalidCastException: Object must implement IConvertible.] System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) +2877013 System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) +141 System.Web.UI.WebControls.Parameter.GetValue(Object value, Boolean ignoreNullableTypeChanges) +63 System.Web.UI.WebControls.SqlDataSourceView.AddParameters(DbCommand command, ParameterCollection reference, IDictionary parameters, IDictionary exclusionList, String oldValuesParameterFormatString) +524 System.Web.UI.WebControls.SqlDataSourceView.ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues) +141 System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback) +92 Telerik.Web.UI.GridTableView.PerformUpdate(GridEditableItem editedItem, Boolean suppressRebind) +224 Telerik.Web.UI.GridCommandEventArgs.ExecuteCommand(Object source) +985 Telerik.Web.UI.RadGrid.OnBubbleEvent(Object source, EventArgs e) +134 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37 Telerik.Web.UI.GridEditFormItem.OnBubbleEvent(Object source, EventArgs e) +216 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37 System.Web.UI.WebControls.ImageButton.OnCommand(CommandEventArgs e) +111 System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +176 System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

Hi Guys

I am using the Chart control to display some dashboard summary data. The page area I have is not that large, so I need to maximise its use!

Issue: I want to remove the title and legend and stretch out the chart size and utilise the title and legend area!

Now I have removed the Chart title (set visible to false) and tried a number of settings on the Legend - (set visible to false, changed the legend position etc), although when I remove the title and legend, the space on the top for the title and on the right side for the legend is not utilised for chart I am displaying. I have also tried increasing the width and height of the chart, but again this increases the total canvas size and we are still left with the blank space on the top and right. I either need to be able to reduce the size of the canvas the chart sits on, or increase the chart size utilising the blank space on the right and top of the chart.

Can this be done?

I have attached an image of my graph for reference, and coloured blue the area I need to utilise.

here the js:
function setNewContent(selectedContentIndex) {
    // finding the radRotator
    var rotator = $find('<%= RadRotator1.ClientID %>');
 
    rotator.set_currentItemIndex(selectedRotatorItem, true);
}