public static string GenerateClientPostBackScript(string propertyName, ICommandBinding expression, RenderContext context, DotvvmControl control,
bool useWindowSetTimeout = false, bool?returnValue = false, bool isOnChange = false)
{
var uniqueControlId = "";
if (expression is ControlCommandBindingExpression)
{
var target = (DotvvmControl)control.GetClosestControlBindingTarget();
target.EnsureControlHasId();
uniqueControlId = target.ID;
}
var arguments = new List <string>()
{
"'" + context.CurrentPageArea + "'",
"this",
"[" + String.Join(", ", GetContextPath(control).Reverse().Select(p => '"' + p + '"')) + "]",
"'" + uniqueControlId + "'",
useWindowSetTimeout ? "true" : "false",
JsonConvert.SerializeObject(GetValidationTargetExpression(control)),
"null",
GetPostBackHandlersScript(control, propertyName)
};
// return the script
var condition = isOnChange ? "if (!dotvvm.isViewModelUpdating) " : null;
var returnStatement = returnValue != null?string.Format(";return {0};", returnValue.ToString().ToLower()) : "";
// call the function returned from binding js with runtime arguments
var postBackCall = String.Format("{0}({1})", expression.GetCommandJavascript(), String.Join(", ", arguments));
return(condition + postBackCall + returnStatement);
}
public static string GenerateClientPostBackScript(string propertyName, ICommandBinding expression, DotvvmControl control, PostbackScriptOptions options)
{
object uniqueControlId = null;
if (expression is ControlCommandBindingExpression)
{
var target = (DotvvmControl)control.GetClosestControlBindingTarget();
uniqueControlId = target.GetDotvvmUniqueId() as string;
}
var arguments = new List<string>()
{
"'root'",
options.ElementAccessor,
"[" + String.Join(", ", GetContextPath(control).Reverse().Select(p => '"' + p + '"')) + "]",
(uniqueControlId is IValueBinding ? ((IValueBinding)uniqueControlId).GetKnockoutBindingExpression() : "'" + (string) uniqueControlId + "'"),
options.UseWindowSetTimeout ? "true" : "false",
JsonConvert.SerializeObject(GetValidationTargetExpression(control)),
"null",
GetPostBackHandlersScript(control, propertyName)
};
// return the script
var condition = options.IsOnChange ? "if (!dotvvm.isViewModelUpdating) " : null;
var returnStatement = options.ReturnValue != null ? $";return {options.ReturnValue.ToString().ToLower()};" : "";
// call the function returned from binding js with runtime arguments
var postBackCall = $"{expression.GetCommandJavascript()}({String.Join(", ", arguments)})";
return condition + postBackCall + returnStatement;
}
